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| qwik6 | How do you align the waterpump shaft splines? | ||
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Guru Newb
 
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I'm looking for anyone who can give me some advice on how to align the waterpump driveshaft splines so the pump will slide on smoothly. I thought I would just try and use the attachment bolts and force the pump on. I got scared that I would bend the aluminum housing on the pump so I backed out of that strategy. Its going on a '96 LT-4 and its a new delco pump. Any help would be greatly appreciated....
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Posted on: 2011/11/11 20:42
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| 1Fast04Vert | Re: How do you align the waterpump shaft splines? | ||
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Elite Guru
 
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It should just slide right on, it is not keyed where you would have to line up the splines just right or anything.
You are right - don't use the bolts to force it on. |
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Posted on: 2011/11/11 20:48
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2004 Vert. 475hp. Built by Vengeance Racing |
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| pianoguy | Re: How do you align the waterpump shaft splines? | ||
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Guru Emeritus
 
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You could just turn the engine a smidgen using the crank bolt.
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Posted on: 2011/11/11 21:11
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1996 LT4 �Before you criticize someone, you should walk a mile in their shoes. That way when you criticize them, you are a mile away from them and you have their shoes.�- Jack Handey |
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| tjpreul | Re: How do you align the waterpump shaft splines? | ||
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Elite Guru
 
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There are two o-rings that could cause binding. Be sure the splines are clean in the coupler. The o-rings will be on the shaft out of the timing cover and on the waterpump. Be sure you have them greased, and the coupler will slide on. I believe the groove on the coupler goes towards the engine. As 95vette stated there isn't an alignment spline.
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Posted on: 2011/11/11 21:14
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Vegas wasn't built on winners. '92 auto, MSD, Banski, Taylor wires, SS lines, C5 rims, 3.07 gears, white gauges, seats from a '96. Motor: Forged rotating assy, Probe pistons, CC valvetrain, AFR heads, Procharger P1SC |
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| pianoguy | Re: How do you align the waterpump shaft splines? | ||
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Guru Emeritus
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The coupler has grooves that mate up with the drives on the cam and water pump. Last time I installed my water pump, I had to jog the engine a bit to get the pump to slide on freely. An alternative would be to use the coupler to turn the pump a little.
It's probably a random situation where the pump splines are hitting the coupler right between the grooves. When I first took my new pump out of the box, it slid right on. |
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Posted on: 2011/11/11 22:26
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1996 LT4 �Before you criticize someone, you should walk a mile in their shoes. That way when you criticize them, you are a mile away from them and you have their shoes.�- Jack Handey |
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