beyond1stcrack

iTrader: (2)

Purchased a 93 twin turbo as a father/son project car recently and am trying to diagnose the following problem:

If I drive the car at low rpm like under 3000, it does not blow blue smoke. If I take the rpms past 4000 for a while and then back off on the throttle, it billows blue smoke.

I had the compression checked by a rotary engine mechanic and he said the compression is fine. He thinks the blue smoke is being caused by leaking seals on the 2nd turbo but said he's just guessing.

I've started taking items off the car to get down to where I can remove the turbos for rebuilding or replacing. As you all know, it's a lot of work to get them off and I started thinking it may be wise to ask you all if you think that the blue smoke is indeed happening because of the turbo's being bad. I can't test drive it now because the trans is pulled, (replacing the clutch) and I've got a lot removed on the engine, so...what do you think? There are oil drips from the 2nd turbo aluminum housing bottom and the turbo intake hoses seem pretty oily.

Should I be looking at anything else before removing the turbos or do you feel the rebuild will solve the oil smoking issue? Thanks for your opinions!!!