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OMC 43 still have water in oil

chris_f

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"OMC 4.3 still water in oil pl

"OMC 4.3 still water in oil please refer to post on 8-16-06. I finally found time to pressure test the cooling system side of the engine. I put 24 lbs air pressure at t-stat. Presasure has held for 6 hrs. I have checked head bolts with soapy water. No hiss, no drop in pressure. Any suggestions where else to look for possible leak of coolent into oil?"
 
Sometimes a crack opens as the

Sometimes a crack opens as the motor heats up. Can you repeat your test with the engine fully warmed up?

Jeff
 
"I will try running hot water

"I will try running hot water (from house source) through engine and then repeat test. I think I should remove intake manifold, cap off water ports to intake ,and look into the valley when I retest. I have heard that a common crack from freezing develops inside valley."
 
.."I have heard that a com

.."I have heard that a common crack from freezing develops inside valley."

Correct. Good luck.

Jeff
 
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