Rb25Det Smoke Diagnosing

[Chris866]

I have a 1996 r33 Gtst with about 180,000ks, stock turbo running 10 psi, plazmaman Front mount intercooler, new splitfires and new plugs, stock ecu.

Recently i have been getting quite alot of white smoke on a cold start which increases when revved. It all goes away when car had warmed up. I did have some problems with a pcv vlave and also installed a catch can which i have taken off for the moment and installed all new hoses and i have replaced the pcv valve and grommet. I have done a chemical radiator test which came up neg everytime and there is no oil water mix.

I did a compression test which was my first time ever and forgot to open the throttle! so dont know how accurate it is but results were:

1. 125

2. 125

3. 120

4. 120

5. 130

6. 130

i took the intake pipes off the turbo and there was a bit of shaft play in and out, a little bit more play than there was up and down.

The intake pipes were pretty clean and no real signs of oil. Does this sound like turbo seal failure or leaking valve stem seals?

Any help would be much appreciated

[Chris866]

Anyone?