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

plugging water pump shaft hole

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Old 12-29-2008, 09:43 PM
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Default plugging water pump shaft hole
so i'm puttin a double roller and EWP on and removed the shaft that turns the stock pump so do i need to plug that hole or anything?

Thanks
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Old 12-29-2008, 09:52 PM
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Ya that hole that the cam dowel went into the back of the water pump yes you do. http://www.vetteweb.com/tech/vemp_08...ump/index.html
Attached Thumbnails plugging water pump shaft hole-vemp_0811_08_z-corvette_lt1_engine-electric_water_pump.jpg  
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Old 12-29-2008, 10:07 PM
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No i'm talkin about the hole on the block right where the gear that turned the WP was pressed into.
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Old 12-29-2008, 11:00 PM
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yes plug it with a freeze plug and RTV it before you tap it in.
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Old 12-30-2008, 01:36 AM
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Anyone have a pic of it plugged with a freeze plug?
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Old 12-30-2008, 05:28 AM
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The hole in the block can be left alone. There is no reason to plug it. Plug the water pump housing hole.
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Old 12-30-2008, 10:29 AM
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This is how Speedinc did it for me.
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Old 12-30-2008, 04:34 PM
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An easy way is to knock out the factory seal, cut out a piece of thin aluminum to fit the hole, and use the factory seal to hold it in place. I have also used freeze plugs and even glued in a half dollar (in a rush!!).
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Old 12-30-2008, 04:40 PM
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I might think about that! I am in the process of doing this too.
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Old 12-31-2008, 10:54 AM
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i drilled and tapped mine for a 1/2 pipe plug.
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Old 12-31-2008, 04:23 PM
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Alright thanks guys, i'll look into gettin it pluged or welded up.
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