Quote:
Originally Posted by Sunset Bob
...I have a 5.7.
.....engine has an oil cooler
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the 5.7 mercruiser engine is a very strong engine. if your engine has power steering (very likely) then you DO have an oil cooler. it is possible for the cooler tubes to be blocked with sludge and such.
to confirm that you have an oil cooler look down near the block on the port side of the engine. there would be a 3" by 14" (sizes vary) tube with the water inlet tube from the transom on one end and an outlet going to the engine. then on top of it there would be two hoses (in and out) for oil to cool. this oil cooler is usually supported by two hose clamps or some other type of brackets.