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Generation III Internal Engine
Water Leak - How Bad Is It?

Generation III Internal Engine 1997-2006 LS1 | LS6

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Water Leak - How Bad Is It?

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Old

Mar 9, 2014 | 11:44 AM

#1

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Water Leak - How Bad Is It?

Came home from a four day trip to find a pool of water under my LS1 in my coupe. I appears that there is a hairline crack in the block and possibly the hole for the motor mount. See picture below. In total it looks like 8-12 oz of water has leaked. I fortunately had a plastic tool box under the motor and all the water was caught in the lid of the tool box.

I am thinking the worst but I thought I would post and get some feedback from the forum. Thanks for the help and let me know what you would do in this situation.

Thanks...Kevin

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Mar 9, 2014 | 11:54 AM

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Not good.

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Mar 9, 2014 | 12:52 PM

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Fortunately the motor has not been running so I am hoping everything else is fine assuming the block is toast.

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Mar 9, 2014 | 05:42 PM

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drain the coolant, bevel the crack heliarc it.

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Mar 10, 2014 | 09:54 PM

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Block repair would be cheaper? New block from GM is 1000. My be able to get one from recycler for less.

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