03-16-2008, 09:12 AM
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CC Member
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Join Date: Mar 2003
Location: Flower Mound,
TX
Cobra Make, Engine: JBL - TK0600, Electromotive EFI, Keith Craft 408W "standard crate", ~575hp
Posts: 399
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Not Ranked
KCM 408 Oil Troubleshooting - Coolant Pressure test next
John,
It is hard to say exactly how much... it is a bunch, I started with a few paper towels to try and "swab" it out and gave up after about 8-10 and it still had a fair amount.
I am going to do a coolant system pressure check next. My hope is this is a "gap" in a gasket between at the intake manifold and not a crack in the block 
I was just thinking about this again....so if the Oil pressure is 25+ PSI and the water pressure is 16 PSI if their is a "gap" in a gasket somewhere it should leak from the High pressure to the low pressure... so since I am seeing oil in the water this could indicate I have a gasket problem that is allowing this transfer from High Pressure to low pressure.
I have somewhat eliminated the head gasket since the pressures are all between 140 and 155 PSI when I tested this yesterday.
Since the motor only has just under the 3k miles...if it has a crack it came this way  But this would not be under warranty
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