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oil slick on water

T

terry williams

New member
Can anyone assist?

Volvo penta TAMD60C in a fairline 40
Injectors cleaned / faulty ones replaced 6 months ago.

When port engine running there is a constant splattering of "rainbow" like
circles on the water from the exhaust. I suspect it to be diesel rather than oil but am not sure. I first noticed it a few weeks ago. Engine runs fine otherwise.

Stab'd engine is fine, some small unburnt deisel/oil apparent from exhaust but typical of most volvos.

Oil and fuel levels fine

any suggestions would be appreciated

Terry
 
Could be u/s valve stem seals but injectors sound like the culprits swap p&s injectors see if problem follows.
 
Many thanks Shakey and Vosman for your responses, much appreciated.
I have decided that as there are so many variables (I have been told to check other things as well such as pump, fuel pressure, turbos etc) then I will wait until next week when the weather changes and take her out for a good run so that I can eliminate things like the turbo first so as to cut down on the workload a bit.

Terry
 
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