PeachParts Mercedes-Benz Forum - View Single Post

Jeremy5848 · #3 12-26-2007, 12:12 PM

AFAIK, all such cars imported into the USA are turbo. Exception might be a Euro delivery car.

Blue smoke from worn valve stem seals will be worse after the car has been sitting -- oil migrates down the valve stem into the combustion chamber. Deceleration while driving does the same thing.

I have a similar problem with my '87, also thought to be intake valve seals. Not cheap to fix, takes a special tool kit to do on the car or R&R the head to do the seals on the bench.

You should be able to pull the injectors without removing the manifold but even if not, it's not a bad job. I would recommend both compression and leakdown tests once the injectors are out.

If the tests do not show other problems, one option would be to buy the car as cheaply as possible and drive it as-is. Oil consumption from a valve guide seal leak will be worse around town, not so bad on the highway.

To get a rough idea of how bad the compression might be, try to start the engine without allowing any time for the glow plugs to heat up -- just turn the key and let the engine crank. In 60F weather, my 603 will start after 5 seconds of cranking without pre-glow. If you are in a cold climate, that may not work. I think the 603 came with a block heater installed from the factory; you could use that in a cold climate to warm the engine and then try to start it without pre-glow.

Jeremy