C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

WATER PUMP COUPLER

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Old Aug 18, 2002 | 04:45 PM
  #1  
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Default WATER PUMP COUPLER

what is this? Im told you take it off the old waterpump..put it on the new one, and it attaches to the engine in some way. Anyone have a picture or can describe what it looks like? I just changed my pump and my car is overheating now. Any help will be greatly appreciated...
vr,
volt :cheers:
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Old Aug 18, 2002 | 05:01 PM
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Default Re: WATER PUMP COUPLER (Voltech_LT4)

The coupling is in the back of the old waterpump, it is what spins the waterpump. It should be about an inch and a half long, just pry it off with a screwdriver.
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Old Aug 18, 2002 | 10:14 PM
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Default Re: WATER PUMP COUPLER (STL94LT1)

Thanks! that was my problem, i didnt take the old one off. (of course I didnt even know there was one...haha) No wonder the car overheated..DuH! lol
Thanks again!
vr,
volt
:cheers:
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Old Aug 18, 2002 | 10:38 PM
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Default Re: WATER PUMP COUPLER (Voltech_LT4)

Great news, that is an easy mistake to make. The LT1/4 waterpump is the only factory w/p I have seen that is not belt driven.
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Old Aug 18, 2002 | 10:43 PM
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Default Re: WATER PUMP COUPLER (STL94LT1)

Yeah, I have to look for gaskets for the pump tomorrow, unfortunately it seems parts for this thing are sometimes difficult to get. I cleaned up the engine today and prepped everything for when i get them. It should go pretty easy. I just hope the Opti is ok. :cheers:
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