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Perkins 354 165HP oil

goody

Regular Contributor
I got an older 354 165HP pre 1978 I replaced the oil sender pressure still low 20 lbs. I run the boat by the time I get back to dock oil is really low but eng. sounds fine then I got new sensor and gauge same thing Wondering if oil is the right kind I was told to use sae 30 thanks
 
Try 1/2 normal and 1/2 gearbox oil -something that gives you about sae 50 and see what that does . Could be worn bearings or a worn pump or something loose on the pressurised line or even a split pipe.
 
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