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03 4 stroke 50 johnson

C

cm4dux

New member
The no oil light on the gauge comes on shortly after starting engine, Engine is full of oil and runs fine. I replaced the oil pressure switch but that did not fix it any ideas?
 
Oil pressure is a product of the volume of oil being pumped and the space the oil has to fill. If an oil pump is starting to fail it will not pump the required volume of oil. This can be tested by putting a feeler gauge between the impeller and the housing and checking the manual for the specification. As an engine wears out the space the oil has to fill increases which means that even a good pump can't pump enough oil to achieve pressure. Both are a possibility.

Stuart
 
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