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volvo tamd 31 "smoke" trouble

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shaun

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First recorded activity by BoatBanter: Aug 2006

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volvo tamd 31 "smoke" trouble

wrote:
I recently bought a used Volvo TAMD 31 engine for my 24' fishing boat.
This motor went through a major refurbishing job - the 4 pistons and
its cilinder vests (sp?) were replaced for new ones, new valves were
installed plus all new wiring, filters, etc were put in place, and the
motor went through a tuned up. After the motor was installed in the
boat, I let the motor run at low rpm for almost 100 hours before
putting the motor to its max. Just last week, the very first day after
this looooong break-in period, I let the boat go at full throthle for
about 30 minutes and everything seemed to go very smooth (nice steady
sound, no heavy smoke). After this 30 minutes passed, the engine choke
and went dead. Seems to me (as you can tell I do not have much
mechanical knowledge) the exhaust filter is giving off excessive
smoke, part of which is going to the turbo intake and choking the
engine due to the lack of oxigen. The mechanic suggested to replace the
exhaust hose to a different spot, which I don't agree because it does
not get rid of the original problem (excessive smoke). Any insight you
could give me will be greatly appreciate it!! I would be glad to
provide any details as you see fit.

Thanks!
Al

have the oil seals on the turbo been checked....sounds as if the turbo
oil feed is bleeding into turbo and dumping oil into the intake......
result clouds of smoke and a choked engine.
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