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Re: smoking



> Can anybody shed some light on the following problem with my 86 5kQTW. 
> When I start the engine after sitting all night, I some times (80% of the
> time) get a puff of smoke out of the exhaust (sometimes more like a cloud).
> Aside from that the car doesn't burn oil. (I use Mobil1 15W50 in the
> Summer).  My service manager suggests leaking lifters.
> I personally think its the Turbo leaking oil into the intake manifold 
> (thru the rubber hose).  The reason I think that is because I see oil there
> (not good).
> If it is the turbo. Should I worry about it.  I get lots of power.  I can
> get the boost to 1.3 fairly regularly, once I saw 1.4. All original
> equipment.  Any comments??    Thanks
> 
... probably the turbo seals.  Others may be able to tell you what you're 
really risking, but I'm thinking that if it is only happening @ cold start
its not a lot of risk.  When I when to fix exactly the same symptom on the 
'83 urQ I noticed the broken EM studs, so I pulled the intake and exh mans.
I broke off the easy out on the back stud so next was off with the head!
When the head was off I found the cracks between the valves [which can 
be ignored if they are below spec BTW] ...

Steve Buchholz
s_buchho@kla.com
San Jose, CA (USA)