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

Electric Water Pump

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Old May 31, 2011 | 12:56 PM
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Default Electric Water Pump

I installed an Electric water pump about two years ago. one of the seals on my timing cover has been leaking so when i was looking at that i noticed coolant coming from the weep hole in the water pump. Its been a while so i dont remember exactly how i installed the electric water pump.

does this mean the freeze plug or whatever i put in was installed incorrectly or do i need a new water pump and put the electric motor on it? im going to take the old water pump off tonight and take it apart to see what i find. but any advise in the meantime would be appreciated.
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Old May 31, 2011 | 01:18 PM
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The small freeze plug you installed in the rear of the pump housing should have closed off the weep hole.
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Old May 31, 2011 | 02:15 PM
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ok thanks, i just couldnt remember for the life of me. so i should be able to take it out and put a new freeze plug. that saves me about 120 bucks
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Old May 31, 2011 | 02:31 PM
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Well since you already have the electric water pump in there now it should be a lot quicker to fix the pump this time. If you don't want to put anther freeze plug in there I've heard of guy's JB welding a Quarter over the hole, I guess a Quarter is just about the right size and JB weld is great stuff to fix things like that. I'm sold on it, had great luck fixing many things with it!
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Old May 31, 2011 | 02:40 PM
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^^^ You must be thinking about the timing cover, a quarter won't work in the water pump housing.
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Old May 31, 2011 | 02:54 PM
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You might be right it's been a while since I read about doing a electric water pump. You could always JB weld over the new freeze plug to make sure it doesn't leak again .
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Old May 31, 2011 | 07:09 PM
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I was thinking about liquid Teflon or maybe some rtv on the freeze plug before installing it.
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