94 E320 Cab, 93 400E, 87 300TD, 92 300CE24 Sportline, 94 SL320, 92 500E, 99 SL600R, '02 CLK55
I am in the process of changing the head gasket on my 91 300D 2.5 Turbo due to excessive smoking and oil drippage from around #1 cylinder exhaust port. I got the turbo off today and I found oil in both the Turbo discharge (charge air pipe is very oily) and the Turbo inlet. Inlet air line is oily all the way back to the air filter outlet. Only source that makes sense to me is the PCV line, but what would cause this?