Volvo Penta

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Fernando - 26 Apr 2005 11:26 GMT

I have a motor Volvo Penta AQD 41A in my boat, and now I have a problem that
I don't get to identify. - The motor usually works, meantime after some
hours of use, it expels the whole lubricating oil through the breath filter.
I made the test of compression emission opening the cover where the oil is
put, and I didn't notice any compression emission.
I would like somebody to guide myself to I respect, because several
mechanics that I consulted myself didn't give a satisfactory answer.
The apparent causes would be rest in the pistons, but that is not true
because the motor is not with the level of the low oil.
Thanks
Fernando

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Brian Whatcott - 27 Apr 2005 02:06 GMT

>I have a motor Volvo Penta AQD 41A in my boat, and now I have a problem that
>I don't get to identify. - The motor usually works, meantime after some
[quoted text clipped - 7 lines]
>Thanks
>Fernando

Either, gas leakage past the rings pressurizing the case,
or
oil level too high, frothing it all up - and out.

Brian W

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Capt John - 29 Apr 2005 17:15 GMT

The top end of the engine could have sludge deposits in it that are not
allowing the oil to drain back into the oil pan as fast as it is pumped
up. Remove the valve cover and remove the sludge blocking the return
holes.

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Boat Forum / Building / April 2005

Volvo Penta