LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Water pump removal.

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Old 06-05-2009, 12:20 AM
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Default Water pump removal.

I just purchased a EWP, and i took it on myself (total freggin mechanical noob) to take out the water pump. WTF, I can't seem to able to take it out.... I took out to what seems to be all 5 bolts, and all of the hooses leading to the Water pump... And the damn thing wont come out. It budges but damn thing wont seem to come out. Anyone know if i forgot a bolt?
Old 06-05-2009, 12:24 AM
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there is a stud on the air pump that is connected to the water pump. try removing that. after that it should come off
Old 06-05-2009, 12:26 AM
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I did...
Old 06-05-2009, 12:29 AM
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^^ Agreed there are a total of 6 bolts that need to come off. 3 on each side I know there is a stud in there somewhere but I can't remember where, it's been awhile since I had an air pump on my car! You may need to use a screwdriver or prybar to get it broken loose if it's been on for awhile. There are dowels that go through the timming cover and the water pump that can make it feel stuck. It'll come off just take your time!
Old 06-05-2009, 12:29 AM
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the only thing it should be hung up on is the gear inside. try hitting it with a rubber hammer
Old 06-05-2009, 12:30 AM
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What 96LT1 said ^^
Old 06-05-2009, 12:41 AM
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Thanks for the quick response guys, Appreciate it. I let it soak with some DW-40 overnight. Hopefully ill be able to pry it out with ease tomorrow morning.
Old 06-05-2009, 06:20 AM
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First, if you have pulled 5, then one remains on the engine. IDK about studs b/c my engine is already apart. However, you should have 3 on each side as mentioned above. 1 is above the water inlet/outlet, 1 is below. These are long ones. 1 is to the outside, this is a short one. So you should end up with 4 long bolts/studs and 2 short bolts/studs. Hope this helps.
Also, there are 2 locating studs, one on each side. These can be a bear to get loose from and could be what you are hanging up on.

Last edited by koolaid_kid; 06-05-2009 at 06:42 AM.
Old 06-05-2009, 09:10 AM
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I took out the 4 Long ones and one of the shorter ones, so that makes 5. I can't seem to be able to locate the Sixth one. Does anyone here have a pic in detail of where all the Water pump are located? thanks and i have seem to brake that one plastic line that goes from the gas line to some sensor on the intake manifold. Thats going to be fun to replace specially since the damn car has been discontinued. Anyone know what line im talking about? Its always easier to find the line when you actualy know the name of it.
Old 06-05-2009, 09:14 AM
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Ok if this helps, I took out all 3 from the right side (Battery side) and I have seem to only have taken out 2 from the left side (The 2 larger bolts) anyone here can tell me where the last bolt remains?
Old 06-05-2009, 09:39 AM
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Originally Posted by MaGzz28
Ok if this helps, I took out all 3 from the right side (Battery side) and I have seem to only have taken out 2 from the left side (The 2 larger bolts) anyone here can tell me where the last bolt remains?
You are missing the stud as mentioned. The two halves of the water pump are symmetrical. Three on each side (you can see them in these pictures). 2 LONG bolts and 2 SHORT bolts. One of the short bolts on the driver side is a stud (I do not have the AIR pump in these pictures).



Old 06-05-2009, 09:53 AM
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Am i suppose to take out the Air pump to locate the stud?
Old 06-05-2009, 10:00 AM
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bingo you go it. you have to take the bracket off. once you get the bracket off you will be able to get the stud out.
Old 06-05-2009, 10:01 AM
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hitmanws6 mentioned the AIR pump in the 2nd post. Assuming you read that and removed the AIR pump, the stud is exposed.
Old 06-05-2009, 11:17 AM
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Its off, Once again i want to thank you all for the quick responses. But i still need that one plastic hoose that fits from the gas line to the sensor on the intake manifold, anyone know what line is called?
Old 06-05-2009, 11:26 AM
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evap purge hose.
Old 06-05-2009, 02:12 PM
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Can anyone tell me how to take out the shaft, so i cant go ahead and install the EWP.
Old 06-05-2009, 02:16 PM
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You need to remove the distributor, balancer, hub, timing cover, and timing chain to get the shaft out. It's a pain.

You might be able to just leave the shaft in there and freeze plug the hole in the wp housing.
Old 06-05-2009, 02:29 PM
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well thats what im going to do, going to plug the whole in the back with the cover provided with the kit. My question was how to get the impellar out, people just say to hammer it out. Is this the correct method?
Old 06-05-2009, 03:00 PM
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Oh sorry. Yea just hammer it. You won't be needing it anymore!


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