I'm a novice with some "shade tree" mechanic skills and tools. My question is what does oil in the boost side of the turbo mean in my 1983 245 GLT B21FT? Sometimes there is short period of time when the exhaust blows a little blue but this is clears after running for 30 seconds. Could this effect HP output as the car is not too quick, but I don't know if this model is all that quick when all is well. Will I need to clean the throtle body/intake with throtle body cleaner? Is this something I can repair or should I have this professionally done? Thanks for the help!

Blue smoke out the tial pipe for 30 seconds after a cold start(and no other time) would point more toward aging valve seals than a bad turbo. Does this happen any time after a hot run and last for 30 sec. then stop? If it occurs just some times @ a stop light after warming the engine up then it most likely is the turbo leaking oil past the turbine or compessor seals. B.G.

There is always going to be some oil that slips past the turbo bearings and into the intake plumbing. It gets worse with age. The 700/900 FAQ has a lot of good info about turbos that applies to 240Ts as well. Cleaning the throttle body every so often helps to keep it from building up where you don't want it. It isn't too bad, and requires no strange tools (an extra gasket would be some good $2 insurance). Hopefully someone will chime in with some tips to reduce the oil short of a turbo rebuild.

As for power, '83s came standard without an intercooler. I'm not sure if it was a dealer option, or something added on later (my '83 has one, and the setup is identical to the factory equiped '85). The intercooler, with accompanying raised boost, makes the car noticably quicker. Intercooled or not, the turbos feel faster than the n/a bricks. Have you driven any to compare it against? I realize this information isn't very specific, but neither one of us (I assume) has access to a dyno to get hard numbers. www.turbobricks.com has a "staged modifications" page where there is a checklist of power-related maintence items. Good luck with hunting it down...these cars are a lot of fun when running right.

Had the same problem with my 940 turbo-your leaking oil past the turbo bearings-like the post above-we have no way to tell how bad it is but-if the car has an intercooler you may need to clean that out as well when cleaning around your throttle body. I would remove mine (intercooler) and drain all the oil out once a month or so and clean well with carb cleaner(spray it good on the inside)then flush out with water hose and take the plugg out of the bottom and let drain. This always helped flow and may help you as well.
Poolman

An oil catch can will help too.
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'89 240 All original, custom exhaust, KnN, custom guages, 260,000kms