TAMD41 A Oil Leak

[John_Pierce]

Appreciate some advice
I have a Volvo Penta TAMD41 A, that I belive is in good order, but tends around 3300 revs, overspill oil from the crankcase breather vent. There appears to ne no crankcase pressure there, just the oil overflowing, and running down the breather outside.

One suggestion made to me, is that the oil is not returning from the rockers, and building up in the cam shaft followers area, that eventually overfills and builds up in the crankcase filter

Appreciate any advice/comments

 

[hlb]

Try a new breather for a start.

Haydn

 

[John_Pierce]

Thanks for the quick response, tried a new breather. Does it with the new one too.

 

[trev]

Is the sump overfilled ??

Trev

 

[rlw]

Try www.boatdiesel.com
I remember seeing similar articles. Even better post your question on the forum.
Membership pays for itself.

Good luck

Rob

 

[John_Pierce]

Checked that, its OK.

 

[John_Pierce]

Thanks, will do.

 

[Guest]

John,

I posted this reply to a leter question in the forum. Thought it might help.

Regards Andy Coggin.

I had a ad31p that had only done 90 hours before it completely blew up! The reason for this was that I was travelling at 3500 rpm when the oil was pushed out of the breather tube, the engine run out of oil completely and stopped. Only then did the warning alarm come on! The problem turned out to be a known fault with some turbo's on Volvo's, they leak pressure into the crank case - in extreme cases they cause all the oil to be blown out completely.

After a big tussle with Volvo they decided they would repair the engine. Since then, and with new pistons and turbo installed I found that I had the same problem over 3500rpm, oil started to come out of the breather tube. Volvo investigated and said that the standard tube that links the air filter to the top of the engine was not big enough (the size was restructed, due to some EC regulation), and this was causing back pressure. since that time the oil seems to have stayed in the crank case, but it always seems like touch and go to me. All a bit worrying when you've only got one engine to rely on!

How old is your engine? How much oil have you lost?

Regards

Andy Coggin