Hello all;
Well I have to rebuild the turbo. On the the way to the track yesterday climbinng a big hill on I-90 in west MA. the oil presure dropped from 60 # to 49 # , but the engine water temp stayed at 160 ° . and it blew , blue smoke out the exhaust when I backed off the gas. So I pulled over , checked the oil level it was fine , no loss.
Now I turned around and headed home . The trip home was mostly down hill . No oil presure drop, But when I did get home 150 miles it used 1/2 quart of oil. (So it is using oil on high vacuum).
The engine sounds fine , So I pulled the turbo off. Compresser wheel had about 1/8" of play. the exhaust side had about the same. the compressor housing had oil in it.
Pulled the exhaust and intake sides off, removed the nut and pulled the wheels . You can see oil streaks on the back side of the compressor wheel , where oil was getting by the seal. But the exhaust side there was allot of coking where oil was getting by the exhaust seal ring .
Goods news the wheels did not contact the housings , but the compressor wheel has some nicks.
I have a set of new bearings , since both wheels are balnce seperate. Or I might just send it out.
The carbon face seal is built in to the housing and doesn't press in like the other T-3 turbo.
I'm going to try and post pictures today , the differances between this beast and a stocker.
Well I have to rebuild the turbo. On the the way to the track yesterday climbinng a big hill on I-90 in west MA. the oil presure dropped from 60 # to 49 # , but the engine water temp stayed at 160 ° . and it blew , blue smoke out the exhaust when I backed off the gas. So I pulled over , checked the oil level it was fine , no loss.
Now I turned around and headed home . The trip home was mostly down hill . No oil presure drop, But when I did get home 150 miles it used 1/2 quart of oil. (So it is using oil on high vacuum).
The engine sounds fine , So I pulled the turbo off. Compresser wheel had about 1/8" of play. the exhaust side had about the same. the compressor housing had oil in it.
Pulled the exhaust and intake sides off, removed the nut and pulled the wheels . You can see oil streaks on the back side of the compressor wheel , where oil was getting by the seal. But the exhaust side there was allot of coking where oil was getting by the exhaust seal ring .
Goods news the wheels did not contact the housings , but the compressor wheel has some nicks.
I have a set of new bearings , since both wheels are balnce seperate. Or I might just send it out.
The carbon face seal is built in to the housing and doesn't press in like the other T-3 turbo.
I'm going to try and post pictures today , the differances between this beast and a stocker.