On Tue, 26 Apr 2005 07:26:54 -0300, "Fernando"
wrote:

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


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

Brian W