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2000 74 454 cu MerCruiser Engine

D

deejai

New member
"My oil pressure droped down t

"My oil pressure droped down to 25- 30 lbs from 55 lbs on a trip , i check the oil level and it was good . when i got into port i noticed a milky oil in the crank case but the oil level was still good . I have 2 engines so i swapped gauges and senders and the pressure was stiil low , i tried a mechnical gauge and it to showed low . Engine rund fine no lifter noise , colud it be a bearing with that little water or a oil pump ??"
 
"I would suspect the contamina

"I would suspect the contaminated oil is affecting the pressure. I would flush it out, install fresh oil and filter and run it again. First confirm there is no damage, then locate and correct the source of the water."
 
"Sorry i didn't mention i

"Sorry i didn't mention i changed the manifolds and
flushed out the oil and changed the oil filter . I
was just wondering would it be more likely to be the oil pump rather than a bearing with that little water in the crankcase , it sounds and runs fine ."
 
"[b]"was just wondering wo

""was just wondering would it be more likely to be the oil pump rather than a bearing with that little water in the crankcase ,"

Ayuh,....... It could be Either, or Both.....

As long as you're showing 10psi. per 1000rpms,.....
You're good to Go...."
 
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