95 850 turbo smoker

[Glenn T. Smith]

I cleaned all the crankcase ventilation(oil seperator, hoses and etc.) but
when coming off highway driving and setting at a light for a couple minutes
I get a whispy white smoke from the exhaust. I know that the turbo does not
have a flame trap, it seems that at high manifold vaccum, its lifting oil
from some where?

Any suggestions

Glenn

 

[Mike F]

I cleaned all the crankcase ventilation(oil seperator, hoses and etc.) but
when coming off highway driving and setting at a light for a couple minutes
I get a whispy white smoke from the exhaust. I know that the turbo does not
have a flame trap, it seems that at high manifold vaccum, its lifting oil
from some where?

Any suggestions

Glenn

White smoke = water, blue smoke = oil. Of course some water is present
in the exhaust (by-product of combustion), which is more noticeable on
cold days or with the cooler exhaust that is present at idle. If the
white smoke is excessive, then you need to look for a head gasket type
problem.

 

[Brick_0]

I cleaned all the crankcase ventilation(oil seperator, hoses and etc.) but
when coming off highway driving and setting at a light for a couple minutes
I get a whispy white smoke from the exhaust. I know that the turbo does not
have a flame trap, it seems that at high manifold vaccum, its lifting oil
from some where?

It could be the valve seals but when I hear turbo I also think turbo
bearing. If it's water you should be able to smell anti-freeze at the tail
pipe. A garage can put an exhaust gas analyzer in the coolant expansion tank
to see if exhaust gases are getting into the coolant, i.e., coolant getting
into the combustion chamber/exhaust. That would indicate a cracked head or
blown head gasket.

Look inside your turbo/intercooler tubing that comes out of the turbo. If
it's got more than a light film of oil inside, I would say the turbo needs
to be replaced/repaired.

Do you change the oil/filter regularly? How many miles on the engine?


Brick_0

 

[volvowrench]

It could be the valve seals but when I hear turbo I also think turbo
bearing. If it's water you should be able to smell anti-freeze at the tail
pipe. A garage can put an exhaust gas analyzer in the coolant expansion tank
to see if exhaust gases are getting into the coolant, i.e., coolant getting
into the combustion chamber/exhaust. That would indicate a cracked head or
blown head gasket.

Look inside your turbo/intercooler tubing that comes out of the turbo. If
it's got more than a light film of oil inside, I would say the turbo needs
to be replaced/repaired.

Do you change the oil/filter regularly? How many miles on the engine?


Brick_0

850 motors will eat valve seals.

Bob