Please advice, we have the belts loose on the old pump and we cannot figure out how to get the belt guides off...is it a pin push? I don't think we will have an issues replacing, it looks cut and dry. We are only having issues on the removal...
Re: replace water pump for a 1988 pontiac grand am
The pullies have to be pressed off. If you have an AutoZone close by, they can take them off for you.
Do Not hammer the pullies onto the waterpump! Place the pullies face down on your bench or hard surface and tap the pump into the pullies using a punch on the shaft only!
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You have got something out of whack there, take a straight edge, like a metal ruler or framing square and line up the pulleys, try to find one that is out of whack. Wiggle the crank pulley and see if it is loose. If the belt is off, wiggle all the pulleys to see if one is loose. One of the pumps, comp, alt, etc, is either bent or has a broken bracket. Is the tensioner tight? Too tight? It should be ok if nothing squeals. Hope this helps.
Water pump should not squeek,even if its going bad. It may be your Idler or tensioner pully.If you look at the pullies and see where the belt has beed running and were it is running now,it may tell you the one you want to replace.If you can't tell that way you can remove the belt and spin them by hand.Had a car once thought it was the Alt. but ended up just being the belt.Well good luck and hope you figure it out.
GET LOND DRIVE 3/8 RACHET OR BELT TOOL AND PLACE ON THE BELT TENSIONER AND PUSH THE TENSIONER YOU WILL SEE BELT IS LOOSEN REMOVE THE BELT FROM THE ALTENATOR PULLEY AND LET THE TENSIONER GO SLOWY AND REMOVE THE COMPLETE BELT. COMPARE THE OLD BELT FOR SIZE AND MAKE SURE THEY ARE EXACT MATCH. YOU HAVE BELT SCHEMATIC TOP OF THE WATER PUMP START FROM THE BOTTOM CRANK PULLEY PLACE THE BELT AND MAKE SURE DONT MISS TEETH OUT OR INSIDE. A/C PULLEY WATER PUMP POWER STEERING IDLE PULLEY AND OTHER SIDE PLACE ON TENSIONER PULLEY TO AND PUSH THE TENSIONER AGAIN AND PLACE THE ALTENATOR PULLEY AND YOU ARE DONE. BEFORE START TO ENGINE FALLOW THE COMPLETE BELT FOR PERFECT SIT AND CORRECT POSITION.SHOULDNT BE TOO TIGHT OR TOO LOOSE.
To change the water pump on the 1.8 or 2.0 4cyl is a complex project. The water pump is driven by the timing belt which means you have to remove the timing belt cover. Once youve done that you will need to release the tension on the timing belt make sure you have aligned the timing marks on both the camshaft and crankshaft sprockets before loosing the timing belt and be sure you do not move them while the timing belt is off and be sure they do not move while putting the belt back on. The tensioner will have to be locked down either before or after taking it out if after you will need to compress the tensioner and stick a small drill bit through the holes that way when you install it back all you have to do is pull the bit out and the tensioner does the rest. Once the belt is loose then you can remove the water pump and install the new one.
To replace belt, first loosen the pivot and slide bolt on the steering pump, then use the jack bolt below the pump to move it. Belt goes (ccw) around outside of ps pump, under idler pulley, over a/c compressorover alternator over fan pulley, over crank pulley over water pump and back to the ps pump. best bottom (grooved area) should match with any pulley with grooves, back of belt should contact smooth pulleys. 9example...grooved part contacts ps pulley, smooth back goes under idler pulley) When finished the water pump should spin ccw (I've seen them put on incorrectly so it turns backwards) Tighten jack bolt till the long strech of belt is giving about 1" deflection, then lock pivot and slide bolts down.
are you sure its water pump? it kind of sounds like your not sure. is there any visable leaks? if no leaks, that noise you hear could be that idler pulley your talking about. what you need to do is loosen the belt(witch there should be a spring loaded tennioner pully that you got to move to get belt off) once you get belt off spin all pulleys that the belt runs on and see if there noisey, or excessively loose, even fan blade, if fan blade moves alot back and forth than its time to replace water pump( fan is bolted to water pump),( it will move a little thats normal) i'am betting its not the pump, its most likely one of them idler pulleys. now if you need a belt routing diagram, advance auto, autozone, or any other major auto parts stores have web sites you can go on to get one, or you can get one from your local auto parts store, sense you will have to go there for a part any how. if you need anymore help just ask, i'll help you as much as i can. good luck. OLD SCHOOL.
If you look at the spring tensioner on the belt, there is a 3/8 square hole in the support arm.
Use a ratchet wrench, or breaker bar in the hole, and release the tension. Once it's loose, you can remove the belt.