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I am installing a lt1 electric water pump. I did not get the plug that goes with it. Do people weld up the hole or am I going to overboard. I just dont want a plug that can leak or come out.
 

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Dan,
I think they're talking about the hole that the spline drive pokes through to drive the mechanical pump.
 

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The best bet without going overboard, would be to put a freeze plug back there, bondovw. This was done when I had my EWP put on at a local speed shop in TX. I don't remember the exact size, but you can call or IM george or angel at George Bates Automotive, they have done this before too.
 

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Yea anyone who can wig weld aluminum can do it. Like dustman said. Mine came with the plug I put it as far as it can go and put solicone and I never had a leak.
 

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Or, you can just leave the waterpump drive in there, it ain't going anywhere, and it isn't going to leak, and you can't really see it.:)

Next time the engine is out, I might pull it.:p
 

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I welded mine, put a 1/4 thick aluminum round plate in the hole and welded it on both side. Weep hole is welded shut that way too.

I leak tested the welding and its fully seal.

My buddy used the freeze plug that came with the meziere with block freeze plug sealant and its holding fine.
 

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Yes, I got it in my head he was talking about the drive in the block. As mentioned above, just get a freeze plug from any auto parts place. Use some perma-gasket, and it goes in from the front.
 
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