Peter,

Thanks for the info. I checked the rotation of the turbo by spinning it. Although there is no wobble and no sticky point as the wheel rotates, I suspect that there is too much friction in the bearings. This is a very subjective test as I don't have another tubo to compare it to.

Dieseldiehard,

I did a road test as you described by connecting a T to the ALDA line at the intake manifold and running the line our throught the fender well. I taped the pressure gauge to the windshield and drove the car around the neighborhood. There was no positive pressure in the intake manifold.

Since the loss of power coincided with a loss of oil from a ruptured oil hose, I am betting that the turbo bearings were damaged, but not destroyed. My theory is that they bearings are generting too much friction for the turbo to reach proper speeds.

Now the question is whether to have this unit rebuilt or simply buy a used one to replace it.

Regards,
The Chief