oil leak dilemma

[Patrick McMahon]

Bad news- noticed that my 91. 5 intercooled first gen w/ 300,000 miles was throwing quite a bit more exhaust smoke than ushual-went to check oil and noticed it was maybe a half quart low, then WOW-noticed the pool under my truck where it had been sitting. Oil is leaking out of the bottom of my turbocharger housing. I have the banks 14cm setup and the oil is leaking out where the metal boost actuator bracket sits. Obviously I am losing some out the exhaust-this explains the extra bluish smoke in the exhaust. Question is- my oil pressure is still good, boost still comes up, although I have been driving very conservatively since this discovery-Any ideas-would love to hear some speculation on this one so I am prepared when I dive in to this in a week. Thinking that an oil seal went in the turbine assembly-anyone with a guestimate or some advice would be greatly appreciated.

 

[Paychk]

I would guess that the drain tube at the bottom of the turbo has sprung a leak or gotten plugged and is backing up. It should be a simple to fix.