Water pump reverse rotation problems. Apr 19, 2008 · re-read my previous post.

Water pump reverse rotation problems I believe in 1990 the fuel pump boss was omitted. No gaskets blocking water flow in head? Also the ac condenser is real close to the radiator. Jan 3, 2022 · Periodically I would arrive and the electricians would say they had already checked rotation by running the pump. Oct 30, 2003 · The RTCF-302D cover is what should be on your car (it is what is on my 88 5. g. Has anyone else had this problem. Jun 3, 2010 · What kind of impellers are in the sea water pump assembly #16. 0 XJ standard rotation!!!! I am starting to think that the whole story here of getting water pumps with the wrong rotation is simply manufacturing errors (rare ones), where the wrong impeller got installed and boxed up. The difference between a conventional and a reverse rotation pump is the shape of the impeller which needs to be reversed because of the serpentine belt spinning the pump backwards. wade: Performance Talk: 3: 09-26-2002 10:51 PM: flow kooler water pump: 97 skunk stripe: Ram Feb 25, 2011 · a REVERSE ROTATION pump in a serpentine setup still pumps water in the same diection. When the impeller rotates in reverse, fluid enters the eye of the impeller as normal. Also a dumb question. 0 style). Street drove mine, 640hp, no problems. Not sure if originally equipped with V belt or serpentine. It's easy to see when you rotate it by hand but, like a dummy, I tricked myself and was dumbfounded when i noticed it. Serp belts means a reverse rotation pump. "Reverse rotation" pumps are the ones used on serpentine belt systems. I used a standard rotation water pump from a 1990 Crown Vic, stock timing cover (the ports matched), stock crank pulley, stock-size ribbed water pump pulley from ASP (Performance Machine), and low-mount alt bracket from Aaron Price. Problem with the temp. Jun 22, 2014 · Engine Swaps - 351w water pump - I have been doing a ton of research on the whole revers and standard rotation pumps and cant quite find what im looking for. Dec 23, 2010 · The serpentine belt that runs all accessories off one belt uses a "reverse rotation" water pump, because of the way the belt is wound around everything they use the back side of the serp belt wrapped in the opposite direction around the pump. My question is with the now reverse flow water pump, will it work on this zz4 after having std rotation pump. Jul 21, 2019 · quick question. May 1, 2018 · The cooling fan was marked "Reverse" but the water pump was not marked, Since it is a serpentine belt driven pump it should be reverse drive. If the back of the serpentine belt travels around the water pump pulley, you will need a reverse water pump. I know that there are reverse rotation water pumps that are readily available but I dont know the part numbers. There are two directions for the water pump depending on belt style, CW or CCW. The pre-1968 water pump will be normal rotation (clockwise). what is the bad effect of this rotation if the pump is OFF, and no one run the pump during the reverse rotation. Both the standard and reverse rotation pumps push the coolant through the engine the same way, through the cylinder block to the rear of the head and then through the heads forward to the intake manifold and thermostat housing and back to the radiator. Any help would be appreciated. I do NOT know if this can be done on the 94/95 5. So once I determined the extent of the problem I proceeded to look @ my options for getting the boat back in the water. This causes the water pump to spin the opposite direction from the crankshaft. 8" bolt circle, the reverse is 2. I have a long version pump that came off a ZZ4, last numbers are cast on it "306". Cold water from the radiator comes in from in front of the impeller feeding into the center of the impeller. The truck runs hot !! with in 5 minutes the heat gage is max. Its reverse rotation but it works with any timing cover. If the impeller is angled like yours, then your ok. Polished Aluminum Water Pump #8848 fits the same applications as #8843. The timing covers for both years are the same, so bolting up isn't a problem. 1". Feb 17, 2013 · I believe it (timing cover) is considered standard rotation as far as water pump is concerened. The LS1 water pump Jan 24, 2023 · According to their diagram and everything else I find online, this would mean my water pump is reverse rotation and it's my understanding the rotation is in regards to the impeller. 0 motor), it will work fine with BOTH a reverse rotation 302 water pump (stock pump) and a standard rotation 302 water pump. Post back with more specifics and we'll do our best! This is Garage Sale priced because it is an open box item and returned. 0L has a "reverse rotation" water pump due to the serpentine belt configuration, so the engine rotates clockwise and the water pump counter clockwise, correct? I'm thinking about getting a mechanical fan to replace my electric because I don't have room for the electric with a three core radiator, which I need to run the AC in the hottest Nov 29, 2008 · If your water pumps starting to leak theres an excellent chance that the pumps seeing internal coraosion damage or the bearings are nearly gone, also so it likely needs to be replaced, keep in mind that various chevy water pump designs come in long, short 5/8" and 3/4" and forward and reverse rotation designs, and the LT1 uses a totally Oct 11, 2020 · In this video I explain how to mate a standard rotation water pump to a reverse flow timing cover on the ford 302. Ford Reverse Rotation Mechanical Water Pump. Unfortunately, centrifugal pumps will pump quite well running backwards and correct rotation cannot be confirmed by this method. There are a couple different ways to identify STD vs REV or CW vs CCW. Aug 9, 2006 · with the V belt system you just need a standard rotation water pump, old style, (if I'm wrong someone correct me) why not run a chevy 4. But instead of the impeller velocity forces flinging the water out of the impeller and into the volute, the impeller vanes cup the water and direct the flow in the opposite Aug 3, 2021 · The risk of reverse rotation is higher when putting in a new pump system, or replacing parts. I asked for a reverse rotation pump and they didn't know what I was talking about. A second option is to keep the serpentine pulleys, and the current cover and May 18, 2014 · If you have the standard rotation timing cover buy a 86-93 5. "Normal" rotation for SBF's is the image on the right, counter-clockwise. Mar 12, 2024 · Loosening of Impeller: In some pump designs, particularly those with threaded impellers, reverse rotation can cause the impeller to loosen and detach from the shaft, potentially causing catastrophic damage to the pump housing. The serpentine style water pump has a different bolt pattern than the standard type water pump. The bolt spacing is not the same. Why do you ask? I assume you are overheating. 0 Litre V8s with serpentine drive belt. Its actually not even possible to bolt a fan or pulley from an HO counter-rotation pump to a non-HO standard rotation pump. I’m going to replace my original 71 383 none ac water pump and I’ve seen a lot of water pumps online says fits big block Mopar’s but some have 8 blades and others have 6 blades. Overheating. 0/302, 5. The Jul 19, 2005 · After replacing my stock ( reverse rotation ) water pump last year with a standard rotation pump ( part number WP641 at Advance) the stock water pump just sat in the storage room as a spare. If not, then it will not pump water correctly. 0 waterpumps were standard (clockwise) rotation? Jun 17, 2005 · He was saying the late model pumps everyone was delivering would work so I ordered a pump for a 90 Mustang 5. The Edelbrock aluminum water pump is a heavy duty water pump for both street and racing applications. A reverse rotation pump will use a smooth pulley to ride on the back of the belt to turn it in the opposite direction from the engine. Stock HO (Mustang, Mark VII) pumps are counter rotation, and non-HO are standard rotation. 5 speaketh the truth. Jun 9, 2005 · Re: reverse rotation 351W, in a ski boat Turning the transmission the wrong direction may cause a problem with it lubricating. If you use an accessory on the drivers side of the engine, you need reverse rotation. It's reverse rotation. A reverse rotation water pump has the blades on the impeller spirling in the opposite direction. 80-07591 (Q-10780) and in the circulating water pump #16. Fitment: WP-722 = '87-'90 2. All reverse rotation pumps used an alternative timing cover. the Gen II LT1/LT4 are the only small blocks that use a REVERSE FLOW pump, which cools the heads first, rather than the block. 0 w/AC). Aug 14, 2016 · You'll need to change the timing cover to run a standard rotation pump water pump with a traditional v belt. As the water comes off May 13, 2018 · You can determine this by seeing how the belt travels around the water pump pulley. Coolant flows exactly the same way. 8 Truck water pump. The 258 with v belts used a standard rotation pump. If your cooling system is sound you shouldn't have any issues with the serpentine system running hotter. 06” bolt circle. Jan 22, 2018 · If the impeller is run in reverse direction the liquid may still be discharged from the pump due to centrifugal forces overcoming the normal flow path. This MIGHT cause damage (permenate magnet type) On another reverse the wires and . They are lightweight and flow at a rate up to 40% over stock pumps. . Apr 12, 2008 · GM 4. now the motor I build from scratch, all I had was just a block. But what if you notice your impeller rotating backwards? Will it stop working? Will it pump water in the opposite direction? No and no. Fords are also suck to change a water pump on. It is a conventional rotation pump. This can work for positive displacement pumps, but with centrifugal pumps, apparently, that's not the case. Mar 2, 2010 · Starting in 2000 or 2001 Jeep switched to a reverse rotation water pump and there are warnings blasted all over the FSM from those years about making double and triple sure you install a reverse rotation water pump for those engines. Will take a look and let y'all know. Are there replacement pumps which presumably look the same and fit satisfactorily - but which have the impeller blades the wrong way round? Nov 9, 2006 · In the picture of the engine you'll notice that I'm running a standard rotation pump and the belt goes OVER the water pump pulley. It offers weight savings along with increased durability and cooling potential. 38-3/4" ribbed belt from Autozone. I believe some have used this pump configuration along with the E351S from Ford performance parts. This jeep has a serp belt set up, but I don’t think it should, I somehow feel it should be the two belt setup. Eric Dec 14, 2015 · The 94/95 mustangs used a short reverse rotation water pump. I had to then buy a reverse water pump, reverse clutch hub, and reverse fan. Both sea water pumps are mounted at the right front of each engine meaning the pumps turn opposite directions. Check the fan mounting bolts, usually metric bolts for the reverse setup. 0 with no problems and solved my problem. If I switch to the older style pump that spins CW, won't the water circulate backward inside the block? This may or may not be a problem, but would like to know what I'm up against before I go any further. Can anyone list what std rotation pump and pulley would work? Oct 3, 2003 · What is the best standard rotation water pump to get. • Pump is an API BB3, 10 stage • Pump is driven at a constant speed by 1500 BHP horizontal induction motor Jul 14, 2014 · I converted a 1984 305 with V belts to a serpentine setup from a 1988 Firebird without any problems. Measures to prevent high reverse running speeds. Left: Typical Standard Rotation Pump (New), Right: Unknown Pump (Old) Hello! I am looking for info about this water pump, the one on the right was removed from a Ford 302 and the impeller appears to be reverse rotation but I could not find another one with a totally open chamber like it has. The photo is of a standard rotation water pump on a late model reverse rotation timing cover. Oct 22, 2008 · I have a 1990 Mustang 5. Previous valve failure had caused some pump damage. 0 REVERSE rotation pump. There's been multiple pump housing configurations (from both Ford and the aftermarket) over the years so I won't even try to describe those, but a passenger Apr 11, 2022 · To avoid these problems, knowing the most common submersible pump problems is very important if you own one. Tuition in the school of hard knocks, Art. What Is The Best LS Water Pump With the Most Versatility? Picking the proper LS water pumps for your replacement requires consideration of its versatility. I got into this a few months ago when a guy brought an 81 Ford F150 by my place that was overheating. The Aug 31, 2019 · It’s an important component of water pumps and it facilitates smooth operation. When the pump stops turning in reverse, the system automatically resets itself to allow a normal, safe start-up. Impeller rotation is clockwise as looking at the photo you posted, the impeller is pushing the water out from under its center into each scroll to the pump outlet ports that feed into the block. I have converted to a serpentine belt and just realized my water pump is turning backward. Apr 19, 2008 · re-read my previous post. Jul 3, 2023 · The hoses connected to the water pump are inlets. 3s and 5. Jun 6, 2004 · In order to run such a short belt, I needed a standard rotation pump instead of the stock 5. The standard rotation and reverse rotation pumps have different shapes, you can google the different pumps and look at the images portion of the page. 80-27554 (LH rot) (Q-10830. It's really a matter of getting the correct pump for the cover. _____ Joe Sep 15, 2018 · On one reverse the wires and it runs backwards. 0 smooth pulley and the belt wont stay on so i need a short neck Aug 9, 2012 · Guess I will find out eventually. Jan 14, 2019 · Rotation basics This chart might help . Its internal components are all designed to meet or exceed all OE specifications. Apr 11, 2022 · However, like any other motors, they are not immune to serious problems and damage. Aug 31, 2002 · I need to get a new waterpump. it don't work period (no damge) (Brushless like 12 volt comptuer fans) On the 3rd. It seems like the little bolts on back are pushing it out. One of the most common problems of submersible pumps problems is overheating. When a centrifugal pumps impeller rotates in the inverse direction, the flow of fluid through the pump isn’t reversed. The current water pump is tired and leaking. Question: I am assuming the 1985 motor had a serpentine belt and would have been reverse rotation flow on the water pump (counter clockwise). 0/5. What Jul 21, 2021 · About your only option is the clutch fan assembly from a Fox Mustang, or another reverse rotation Ford. Mar 28, 2007 · EDIT: The set-up you have appears to be off of a Mark VII. Now going clockwise follow the next wire to the plug. Feb 19, 2008 · I need to swap my standard rotation (69 or 70?) drivers side outlet water pump for a reverse rotation waterpump (5. SO, the water pump is not working to it’s full potential. However May 9, 2007 · Assuming that the pump is OFF, and the check valve is leaking and the water is comming baack to the pump causing a reverse rotation. 0 with a carburetor so the guy who put it in replaced the front cover/water pump with the 81 V-belt stuff so that the mechanical fuel pump could be used. I thought that 5. Aug 20, 2006 · the pullyes im running wont work on it and they are off by about an inch! i have the roush alternator bracket that mounts the alternator down at the passanger left of the motor so the water pump is the high point in the rotation and with the pump i have now i have to run the 5. I read elsewhere that the Mark VIII and Taurus fans would not clear my blower pulley, so I went with a 2 5/8" thick Flex-A-Lite 210 dual fan . Apr 7, 2024 · I have a Chevy water pump that I want to install on my 55 Chevy with a 350. Jun 24, 2023 · Of note, some are stand-out with 304 stainless steel line and CNC aluminum manifold, which provide a sturdy and reliable system and aid in proper LS water pump rotation. To be safe, it’s best to check which way the impeller rotates before you start pumping. The following are the most common problems of submersible pump and what you should never do if one of these suddenly happen to your submersible pump. However the water pump impellor blades are straight cut in both applications and can be used in either direction. mopower440: Performance Talk: 3: 07-07-2003 12:59 AM: water pump block off: f. A serpentine belt accessory drive where the RIBBED part of the belt is turning the water pump pulley will also require a regular-rotation water pump. At $ 249. Another option is the crown Vic front cover and pump from a late 80-early 90s Vic. 3 V6 or chevy V8 serpentine belt system ? if you run the serpentine belt system with the Reverse rotation water pump that come with the serpentine belt system your ok. The parts guy looked at me and said "I learn something new everyday" Scary from a parts manager! Apr 29, 2003 · The reverse rotation setup mounts to a different timing cover than the conventional setup. I don't know of any aftermarket reverse rotation fans. I swapped the 300i out for a built 351w I had built for it. Reversing the rotation is done with a flat serpentine belt and running the back side of the belt on the smooth pulley. You will need to use the 1970 radiator hose locations (drivers side lower, pass side upper). Remembering that the pump must be looked at from its back side - all references to orientation are from the drivers seat. I think this is where your problem is. Michel Everson sells the correct water pump pulley with grooves for a standard rotation pump, and a serpentine type belt. 0 Mustang water pump. Now on the 90-93 Mustang, I honestly do not know if the pump was changed or still used the same pump from the early 80 Oct 2, 2002 · Big Block Water Pump: wilks3: Performance Talk: 15: 05-29-2007 01:30 AM: water pump flow rate: pishta: Performance Talk: 8: 03-19-2006 11:32 PM: Bib block water pump help. Always. 1954 Ford Sedan 1970 351W, C4, 8 inch rear 2. If the pump has been removed from the engine, refer to the images below: STANDARD ROTATION WATER PUMP for example: AW1002, AW3403 A reverse flow engine has nothing to do with the water pump. Link to Mikes: Feb 7, 2011 · easiest way to tell, although it is no guarantee. Hope that helps. 0 that I knew was reverse rotation and it was the same blade that we kept getting sent to us from the parts store{I thought the 79-80 Mustang was the v-belt aluminum, but the pump I had was for an 80 LTD 351w which is aluminum and Jan 3, 2008 · My 5. I changed the pump and then my radiator blew the drain plug. Not for reverse rotation 1986-93 5. heres a serpentine belt system A/C by pass Pulley Sep 10, 2012 · It seems that the 4. The car was getting hot at stoplights and a little coolant was leaking out, The serpentine belt that runs all accessories off one belt uses a "reverse rotation" water pump, because of the way the belt is wound around everything they use the back side of the serpentine belt wrapped in the opposite direction around the pump. I haven’t removed it yet so I’m not sure what I needed. 0's. Standard rotation = Clockwise viewed from the front of the motor Reverse rotation = Counter clockwise viewed from the front of the motor-Dan Feb 27, 2020 · Reverse rotation now usually happens in the transmission not the motor. But other threads suggest that it is necessary to check. Jul 16, 2006 · Some other posts suggest that all water pumps for the 4. Reverse rotation for serpentine set-ups For Ford small block 302 and 351W engines Satin Finish Aluminum Material Jul 25, 2012 · Is there a reverse flow (counter clockwise rotation) water pump for a 302 with the early style (dipstick and fuel pump boss) timing cover. So I found a pully that I believe matches the pully already on the belt setup, and added it to the top right of the water pump, and ended up turning the pump the way the old original belt system would have Sep 9, 2015 · 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks - Standard or reverse rotation water pump? - Any benefits to either one? Does one work better than the other as in flow rates and cooling? Jun 1, 2017 · If a CW pump trips, reverse flow, water hammer, backwards pump rotation, pump over speed, pipe over pressure, pipe vacuum pressure, cavitation, or a forced steam turbine shutdown can occur May 31, 2003 · If the slightest reverse rotation of the pump shaft is detected, it disables the pump starting circuit, thus preventing start-up during reverse rotation. If they are GM motors you can confirm the motors by looking at the firing orders. Also, the holes are bullet-shaped in the timing cover and some pumps. A V-belt accessory drive will need a regular-rotation water pump. So what DOES happen if a pump impeller rotation is reversed? How could this happen? Jul 9, 2011 · To tell a standard or reverse timing cover or pump, note in the pic below there are 9 mounting bolts on standard-rotation, and 7 mounting bolts on reverse rotation. Just out of curiousity, why switch back to V belts? Oct 18, 2009 · It's not reverse flow. Feb 9, 2007 · What car came with a 351W with a drivers side outlet on a water pump with a clockwise (standard) rotation? Thanks. Reverse rotation = Maybe. 8/351W) - Reverse rotation water pump on standard rotation timing cover - Hi Folks, I pulled a complete serpentine system from a truck at the junkyard this weekend (a 1990 F150 5. I changed out the radiator and now my water pump is howling. 2L Serpentine reverse rotation only Notice that the pump has a threaded hole for the heater supply pipe to be threaded into the pump. It was an accident but no overheating occured. How much clearance needs to be between radiator and ac condenser. Improper blade angles: The impeller blades are designed to efficiently push fluid outwards during normal rotation. 8 is a standard rotation and 2 is a reverse rotation Aug 17, 2009 · 3- If you are using a standard rotation water pump and use it in a serpentine belt system, and thinking that this may work as a "reverse flow" cooling mechanism, then you are incorrect, the vanes inside the water pump will rotate in the wrong direction causing all sorts of turbulences and will eventually cause the engine to over heat. This is very inefficient and can cause serious problems including cavitation, loss of performance, bearing and seal issues. Oct 11, 2011 · If it came with a serpentine belt/tensioner set up - then it's a 'reverse-rotation' water pump. So thats not the issue (yet) Jul 17, 2008 · The GMB pump I bought at Summit was a perfect fit. 0L xj that wasnt reverse rotaion how fast would it heat up. either that, or find a radiator that has a heater hose nipple in the passenger side tank. I'm only running crank, alt, and WP. Nov 22, 2007 · Can someone recommend a decent "standard rotation" water pump for a 1987, 5. • Water pump pulleys running on the OUTSIDE surface of the belt indicate a REVERSE ROTATION water pump. DO NOT SHOCK THE WATER PUMP The water pump is composed of precision parts of bearing, mechanical seal etc. Some replacement pumps without the scroll impeller work pretty good backward. Feb 11, 2019 · I have a '69 vintage Windsor with a reverse rotation water pump and CVF pulley system. I will be installing it on my 1984 F150 5. Reverse flow did not start till the LT series engines. To avoid these problems, knowing the most common submersible pump problems is very important if you own one. So both standard and reverse rotation pumps were used on this style cover. <br />As for using existing parts to convert new 351 to reverse rotation you would need to swap camshaft, oil pump, starter, circulating waterpump and raw water pump. If you have the reverse rotation timing cover buy a 87-96 5. 0 engines have reverse rotation water pumps. 5L & '87-'90 4. 3 liter V6. They brought one out and I pulled it out of the box and found the "R" for reverse stamped on the impeller. Thanks for your input Honestly, I half expected the water to run in reverse through the pump, the suction becoming the discharge, and the discharge becoming the suction. 0 l, F-150 engine? I accidentally installed a reverse rotation pump which is giving me cooling problems. I would also put in new lifters, timing gears and chain. Now it overheats at idle/low speed. the serpentine belt system fits & gets rid Link to the original journal article, "Centrifugal Flows Drive Reverse Rotation of Feynman’s Sprinkler" Abstract: The issue of reversibility in hydromechanical sprinklers that auto-rotate while ejecting fluid from S-shaped tubes raises fundamental questions that remain unresolved. I'm sure everyone who reads this knows what happened. These are from different pumps but the blades are Mar 12, 2024 · Loosening of Impeller: In some pump designs, particularly those with threaded impellers, reverse rotation can cause the impeller to loosen and detach from the shaft, potentially causing catastrophic damage to the pump housing. Just had to use the proper reverse rotation water pump and fan. 0 Mustang. 0 that has a Dorman #635-102 timing cover (for Jun 18, 2003 · If you have v-belts it means you need a regular rotation pump. 0 roller block, eliminated everything but the water pump. spend the $40 and get a new water pump for a mid 90's pickup. I need to know what alternator and water pump that will work in reverse rotation. I have an Weiand pump on my Fox body 460 wirh a stamped impeller with no cooling problems in reverse. I am considering the FMS one from summit, which states is a stock replacement, but it says "counter clockwise" rotation. By the way the engine only had ( 5 ) hours on it. Because the UDS1000 is failsafe, a power failure would de-energize the relay. I have run several serpentine set ups on different cars. Engine Do I have a standard or reverse rotation pump? Cobraii1976; Apr Aug 14, 2012 · Found out I had a v belt style water pump not a Serpentine belt style pump. Standard rotation = Clockwise viewed from the front of the motor Reverse rotation = Counter clockwise viewed from the front of the motor-Dan Jun 16, 2010 · Yes, that is reverse rotation. (ELectro magnet) it works fine no damage. Feb 22, 2005 · But 7. 5" shorter than the standard and should bolt to (almost all) standard rotation timing covers. They claim that reverse rotation pumps are stamped with a "reverse" or "R". Nov 29, 2015 · This is very important and don't trust the part guys. The impellers on both the 89 & the 91 pumps match the rotation of the old pump. I used a 1989 Crown Vic 5. Most pulley and bracket manufacturers can Jul 22, 2013 · BUT with that reverse direction that the belt was going to turn my old water pump, I felt I had to do something to avoid problems later. Water flows the same direction through the motor as a 'standard' pump, the pump impeller is different. You clearly have type 3 or what follows: I notice you said "PUMP". Will this pump work on my standard issue SBC? My fear is that its a reverse follow pump! • Water pump pulleys running on the INSIDE surface of the belt indicate a STANDARD ROTATION water pump. The heater core does have an "in" and "out". _____ Joe Jan 1, 2010 · It is my understanding that the intake manifold gasket has a certain water port blocked off to allow for the reverse rotation. Jul 19, 2023 · Having. Find Parts and Accessories sbc reverse rotation water pump KEYWORD and get Free Shipping on Orders Over $109 at Summit Racing! May 12, 2020 · 82 CJ7 with usual overheat problems at idle. Sep 14, 2003 · Actually I did that by making a braket and moving the power steering pump up in the area the AC was and just got a new belt or you can get a AC eliminator kit just a pulley the kit can be bought all sorts of places that sell 5. 0 water pump, it bolted right up to the Mustang 5. The 1970 design cover with mechanical fuel pump was used up to 1985 on the 5. I'm assuming counter clockwise means reverse rotation. For the hell of it, I took the pump to Advance Auto Parts and got a replacement under warranty. Got the pulley at a swap meet. The E351S claims 1. High-flow pump with upgraded internals and 5/8" pilot shaft; For small block Chevy engines 265-400; Reverse rotation for serpentine set-ups; Long neck (7") style pump; These high-flow mechanical water pumps provide that extra cooling power your high-performance engine demands. Its worked, but I also have the March bracket to install. 95, it was a little pricey, but it came with all the sensors and relays and s Nov 12, 2016 · The engine doesn't care which way the water pump turns. So, that's the water pump you want if you want the water pump to go in the "opposite direction" from the stock 86-93 water pump. You need the reguar rotation. The pump is externally the same as the original equipment pump (Ford #E9TE-8505-A4A) to provide compatibility with all acces-sories and pulleys. Im only running the water pump and altenator. Standard rotation water pumps should have a 1. The standard rotation water pump is just 1432C. 0 4V Mustang with reverse rotation pump. swing check valve) in the piping Oct 29, 2018 · The reverse rotation pumps use a larger bolt pattern, a stock-pattern standard rotation fan won't fit. The measurement for a standard rotation is a 1. Standard rotation = Clockwise viewed from the front of the motor Reverse rotation = Counter clockwise viewed from the front of the motor-Dan High-flow pump with upgraded internals and 5/8" pilot shaft; For small block Chevy engines 265-400; Reverse rotation for serpentine set-ups; Long neck (7") style pump; These high-flow mechanical water pumps provide that extra cooling power your high-performance engine demands. 0 that was suppose to use a reverse rotation water pump ran a non-reverse rotation pump in reverse for 8 years with no problems, believe it or not. 0 6cyl engine (with serp belt) are "reverse rotation". Jan 12, 2000 · I made a bracket that mounts a six rib pulley on the drivers side, with a threaded rod in the left head, and flat bar braces to the water pump. Previous owners have made many modifications including aftermarket radiators and electric fans. Reverse rotation for serpentine set-ups For Ford small block 302 Feb 17, 2013 · I am about to start my new engine and I put coolant in and its leaking out of bottom of water pump. It had a 90 model HO 5. Sep 20, 2019 · All 4. Also a reccomended alternator bracket would be nice. I am using a reverse pump that I switched the rear metal cover to allow it to line up with the timing cover coolant openings (I also used a dremmel to open the holes in the metal wp cover to help it line up with the timing cover). If the check valve leaks, reverse flow from the discharge to the suction connection WILL occur in the “off” pump and this WILL cause the pump to The backward rotation of an impeller can also have a drastic impact on pump efficiency. 73 gears May 13, 2015 · The problem- my water pump started leaking water from the weep hole. All air flow is good. Excessively high reverse running speeds that would lead to damage to the pump set can only be prevented by taking the appropriate measures. Nov 29, 2011 · I will install it on a 1985 Chevy 4. No TJ ever had a standard rotation pump they are all reverse rotation. Here is a guide to tell if a standard-rotation or reverse-rotation pump is needed: If the flat, outside part of the belt wraps around the water pump pulley (no grooves in the pulley) then it is a reverse-rotation setup. If this is a "normal" rotation water pump, any problems running a early model water pump Mar 6, 2001 · The 1970 and later timing cover was used up to 1989 except the pump pump boss wasn’t fully machined. I believe that the Summit online catalog misrepresented a GMB-125-1670 water pump as a "standard rotation" pump while it is actually a "reverse rotation" style. Yes the water froze in the block, and cracked the engine in the lifter galley from # 1 to # 4 cylinder. Go by the parts store and have them pull a pump for a 88 5. but it applies to most of your remans and standard replacement pumps standard rotation pump = cast iron (some new pumps are aluminum) reverse rotation pump = aluminum the surest way to tell is comparing impeller blade directions which requires the pump off Jul 6, 2015 · Radiator is an alum unit with 2500 cfm fan pulling air thru radiator. Simply means the water pump turns the opposite way that the crank pulley turns. May 2, 2010 · First is pullys and water pump. Feb 12, 2008 · V-belt pulleys do not fit a reverse rotation water pump. This is a video showing the difference between a standard rotation water pump versus a reverse rotation water pump on a small block chevy V-8 engine. Sep 26, 2010 · Reverse rotation water pumps turn in the oposite direction of the crankshaft and are typically used with surpentine belts. When I first got it, it would heat pretty quikly if I wasnt moving, Iv put a shroud, t stat 195 deg and a fan clutch all of these things help but it will still run about 210 at idle and get a bit hot when it has a load. Short circuiting of flow thru the off pump should be prevented by a check valve. The back (smooth) side of the belt is routed around the water pump pulley, thereby rotating it in the oposite direction of the crankshaft. I originally got a Ford Motorsport high performance pump, but later got myself an Edelbrock pump, which is a much better engineered piece. If the water Jan 3, 2011 · I'm running a Meziere electric pump on my L98. they ran the heater hose to the water pump in the same location as an older small block. and its rotation direction should be fixed Dec 26, 2006 · standard rotation water pumps for 302 and 351-W engines. Mar 30, 2009 · The RTCF-302D cover is what should be on your car (it is what is on my 88 5. A std rotation pump would be the best solution. the email I got from an Edelbrock tech guy says that there is a difference between the two with the hub height being higher in one of the applications as Jun 3, 2011 · usually the design of the vanes in water pump are directonal- i cant recall a water pump that didnt have directional vanes - so yes the effeciency of the water pump will suffer dramatically if the rotation of the water pump is not followed. The part number is 1432CREV which translates to a reverse water pump with chrome plating. . 80-27555 (RH rot) (Q-10825 or #16. Ford V8 serpentine belt is the same way, pump has to be a reverse rotation compared to earlier v-belt Aug 21, 2010 · If I had a water pump in a 4. Nov 8, 2013 · Hi, I dont think your water pump is the problem, or it would overheat a lot sooner. 06 inches. Jan 28, 2017 · 2) The other reason for reverse rotation can sometimes happen in parallel pump installations where one pump is off. Fitting a mechanical backstop on the pump shaft; Installation of a reliable, automatically closing check valve (e. 0 parts and you are good to go then as for measuring for a belt I just cut my original and set it up but went straight across at the tensioner and it gave me the length Aug 23, 2001 · C4 Tech/Performance - HELP!! What direction does water pump turn? Major problems! - I took my 89 L98 to a Corvette Specialty shop to have the water pump replaced with the new GMB unit I purchased, since I did not have the will to do it myself. Dec 6, 2011 · Most of the serpentine belt systems are reverse-rotation, but some of the early setups were standard rotation. Jan 13, 2006 · I think that it is "normal" rotation water pump, but from what I have read, the 5. Precaution in Replacing Water Pump REPLACEMENT SHOULD BE HANDLED BY A SPECIALIST If handled by a non-specialist, it may cause failure of the water pump itself and also other failures apart from the water pump. This is necessary because belt wraps the crank pulley with the grooved side on the pulley, and then reverses itself so the SMOOTH side is driving the water pump. There are no "reverse" rotation vehicle pumps made. They used two multirib (serpentine) belts but the pump was standard rotation. Apr 11, 2022 · To avoid these problems, knowing the most common submersible pump problems is very important if you own one. Have a stock reverse rotation water pump I can compare to. You should be able to go the other way without any issues, as long as its not an LT1 type engine with reverse cooling. This is to prevent attempting to use a standard rotation fan on a reverse rotation water pump. If the pump is uncoupled, this can be done with a simple test, where you bump the power to your pump for a split second to check the direction of rotation. Here’s my issue… the water pump with the serp belt will spin in reverse, my water pump isn’t labeled “R” on the inside, but looking through some videos, I think it’s the correct pump. This mechanical water pump is designed to have a natural pump finish and to have maximum flow distribution. Dec 16, 2024 · If the belt goes under the crank and then drives the under side of the water pump that's reverse rotation. Jan 18, 2011 · I also used an Edelbrock high Flow water pump, and never had a cooling issue. The waterpump is a centrifugal design. Apr 4, 2009 · standard rotation water pumps for 302 and 351-W engines. Also, bolt pattern on reverse water pump/pulley/fan is different than the bolt pattern for the conventional water pump. The crank pulley is running clockwise and the belt is turning the water pump counter clockwise. Apr 7, 2008 · Using a standard rotation pump on a reverse rotation cover will cause a misalignment in the water passages which can make a big restriction in coolant flow. May 9, 2007 · Assuming that the pump is OFF, and the check valve is leaking and the water is comming baack to the pump causing a reverse rotation. Not all reverse rotation pumps interchange with each other. They would say that “rotation was all good because there was flow when we test-ran the pump”. the serpentine pump is just designed to do so by spinning the opposite direction of the V-belt pumps. 351w need a lot of cooling, I thing the problem is your rad, rad with hoses on the same side are not the most efficient for cooling, water doesn't mix very well, a cross flow rad with hose on opposite side you be better. If you stick with the reverse water pump get a smooth (without grooves) water pump pulley instead of a standard 6 rib design as the smooth side of the belt will be contacting the waterpump pulley. How hard would it be to press a 302 impeller on one? I dunno. 2L V-belt standard rotation only WP-723 = '87-'90 2. If the inside of the belt travels on the water pump pulley, you will require a standard rotation water pump. #8840 is a reverse There should be no problem switching the water pump of a Windsor from a passenger side feed to a driver side feed. 0 water pumps were reverse rotation because they all used serpentine belts. 75” bolt circle, reverse rotation water pumps should have a 2. I have a 95 f-150 4x4 reg cab. ( rotation differences) Now The problem, I got a new timing cover from Jegs new water pump 1980' serpentine style. Dec 17, 2020 · STANDARD ROTATION VS REVERSE ROTATION. 3. 0 & 5. Locate number 1 by following the plug wire back to the cap. David May 28, 2012 · Reverse flow = NO. The reason that reverse rotation pumps are needed is because the serpentine belt is set up so that the back side of the belt contacts the pump to turn it, so it will turn the water pump impeller . Nov 3, 2009 · These are AMC YJ water pumps, and are NOT interchangeable with Daimler-Chrysler YJ waterpumps. Thanks for your input Oct 30, 2020 · When referring to a water pump, it's reverse rotation that you need to pay attention to. It is a reverse rotation pump. The bullet "aims" in the direction of pump rotation. 7s the serpentine belt systems turned the water pump shaft in reverse, but the water pump pumped the water in the standard direction. 0 XJ water pump that is listed as standard rotation is reverse rotation because that is the 4. getting the proper water pump is the cheapest and easiest way to go about it. Oct 30, 2020 · When referring to a water pump, it's reverse rotation that you need to pay attention to. High Flow Aluminum Water Pump ; Driver Side Lower Radiator Hose; Reverse Rotation; Note: Bolt Pattern Flange-2. Did you recently replace the pump in hopes of curing an overheating problem? It could be a multitude of things. Oct 28, 2005 · this is may seem really simple but is standard rotation the same as clockwise or is it different, - I think I need a new water pump, and according to the manual it needs one that rotates counter clockwise, but most water pumps listed for the jeep are standard rotation and are cheap $20, the reverse rotation version runs $60, it seems a bit odd becuase the common ones should be cheaper PROBLEM SYNOPSIS • High pressure water flood injection pump with customer concern for potential reverse rotation in the event of a discharge check valve failure. Ford ran standard rotation water pumps in the SBF from the inception on up until around the Cola wars. Most OEM serpentine belt drives use reverse rotation but still pump the cooled water into the block first. Dec 26, 2006 · Reverse rotation 460 engines never used reverse rotation. Jul 1, 2021 · First off, reverse rotation DOES NOT MEAN REVERSE FLOW. Water goes into the pump. Jan 21, 2008 · The serpentine belt engs do indeed turn the pump in reverse rotation to the eng and the v-belt style turns the pump in same rotation as the eng. I have checked the original fan, it is the same as the early model fan I have laying around, or lease the same looking rotation. Pulley will spin same direction as crankshaft. It is a summit racing water pump reverse rotation. Mistting the gasket and hardware NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS This pump is composed of a high-quality aluminum for reduced weight. This pump is composed of a high-quality aluminum for reduced weight. I'm wondering if the pump is rotating the wrong way or if I just have a bad pump. " Jul 18, 2021 · Small Block V8 (221, 260, 289, 5. This is the water pump only. Is this as simple as slapping the reverse rotation pump on in place? Or do I have to replace the "plate" behind it? How about the entire timing cover, does it make a difference? Thanks The 4. Jun 15, 2024 · Fords do have different pumps. Info I found elsewhere: "A serpentine belt accessory drive where the SMOOTH side of the belt is turning the water pump will require a reverse-rotation water pump. But the standard cure is to pop rivet/weld the flowcooler disk to the conventional one, it then effectively pumps water when turned in the wrong direction. ehpsjc vvfndxv hqrgj gfjzz srrehm bhijyf jsmt zsxll qbsxasp iqf