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Model 350; pressure test oil cooler?

Bob H.

Bob H.

Contributing Member
Finishing the installation of our rebuilt engine and noticed a little water mixed in the cooler lines for the transmission oil and engine oil. What's the best way to check these coolers? Is there a procedure and spec for pressure testing them?
Thanks in advance,
 
Well I was going to write this whole thing about the pros and cons of those inline coolers. What you should do is temporaily remove it and see if that is indeed the cause of the oil being present.
 
I don't think you will find a published test procedure....easiest thing to do is take it to a radiator shop....they should had all the test equipment....the oil side of each cooler drives the pressure seen during operation... you definitely want to make sure there is no water path into the reconditioned engine..
 
At least one major rebuilder will not guarantee the engine unless new coolers are installed. > ten years in salt is dicey.
 
I've been thinking about this while I was in the hospital; gonna stop screwing around and order a new one! Thanks everyone.
 
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