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Old 04-18-2013, 01:04 PM   #6
al_s14
Scooby Specialist
 
Member#: 168077
Join Date: Jan 2008
Chapter/Region: MAIC
Location: Virginia Beach
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Ring-land is unlikely at this point, it would have nothing to do with coolant in the exhaust. Simultaneous double failure is next to impossible.

Cracked block, cracked head or blown head gasket. However factory mls gaskets are very rare and hard to blow which leads me to believe that If the car has been part before its likely an assembly defect where something was overlooked.

To get coolant to the exhaust an opening would have to be quite large, not consistent with a simple head gasket leak.

I am putting my money on a crack.


There is no point in doing a leak-down or even a compression, a waste of time. Coolant in exhasut is all the evidence you need. you already know engine has to come out. Heads must be milled in pairs, and it would be stupid not to do so after such failure, maybe even decking the block, but only measuring will show...

The only question you have left is what condition your rings and pistons are in, but once again neither of those tests will tell you considering at least one cylinder will not hold pressure and thus not reveal ring condition of that cylinder.

PS: If turbo somehow let coolant in to the exhaust it would still not pressure the cooling system to blow your hoses. Edit: Some research confirmed my memory that there are no seals for the turbo coolant jacket. I don't see how turbo can be remotely close to the issue at hand.
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Last edited by al_s14; 04-18-2013 at 01:28 PM.
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