Bizzo Posted March 25, 2004 Report Share Posted March 25, 2004 Hey everybody, my waterpump went on my 1991 Lumina yesterday. I don't have a chilton or a haynes manual so I was wondering if somebody could give me a breakdown on how to remove it. I don't have much time to play around with it and figure it out myself because I need the car back to normal ASAP. any and all help appreciated. Quote Link to comment Share on other sites More sharing options...
GnatGoSplat Posted March 25, 2004 Report Share Posted March 25, 2004 Removal is easy. Remove belt by using ratchet in square hole of idler. Remove 4 bolts from pulley. Remove bolts holding water pump in timing cover. That's it! Hard part is removing/installing the 4 bolts, the pulley wants to spin so you'll need to rig up a way to keep the pulley still. Quote Link to comment Share on other sites More sharing options...
Whiskey River Posted March 25, 2004 Report Share Posted March 25, 2004 Hard part is removing/installing the 4 bolts, the pulley wants to spin so you'll need to rig up a way to keep the pulley still. Any of the many flavors of the Craftsman Strap Wrench works like a champ. Quote Link to comment Share on other sites More sharing options...
Guest TurboSedan Posted March 25, 2004 Report Share Posted March 25, 2004 Hard part is removing/installing the 4 bolts, the pulley wants to spin so you'll need to rig up a way to keep the pulley still. Harbor Freight Tools also sells a cheap set of spanner wrenches that work nicely. joshua Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted March 26, 2004 Report Share Posted March 26, 2004 I loosen the bolts before I take the belt off. Get a wrench on them and smack it with your hand. The bolts usually pop loose. Quote Link to comment Share on other sites More sharing options...
regalized Posted March 26, 2004 Report Share Posted March 26, 2004 i replaced a water pump on a 94 lumina 3 days ago and the damn bolts were on the pulley so tight i broke yet another craftsman socket, i had to remove one bolt and stick a screwdriver in the hole to get the rest of them out without the pulley spinning on me, i guess the poor mans way lol...Regalized Quote Link to comment Share on other sites More sharing options...
Bizzo Posted March 27, 2004 Author Report Share Posted March 27, 2004 Yeah it was a pretty easy part to change. The pulley bolts were a bit difficult but once I broke the first one the rest weren't bad. Of course I broke the bleeder nut if half trying to bleed the air from the system. The bolt twisted in half like it was butter. Quote Link to comment Share on other sites More sharing options...
Guest TurboSedan Posted March 28, 2004 Report Share Posted March 28, 2004 Yeah it was a pretty easy part to change. The pulley bolts were a bit difficult but once I broke the first one the rest weren't bad. Of course I broke the bleeder nut if half trying to bleed the air from the system. The bolt twisted in half like it was butter. ha same thing happened to me. thankfully it doesn't leak. i've been meaning to replace it but there is still a bleeder screw above the thermostat that i can use. i've noticed some W-bodies have 2, and some only have 1. joshua Quote Link to comment Share on other sites More sharing options...
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