Turbo Replaced

spridel · Jun 19, 2013

Short version... twice...

First turbo recently sucked its waste gate into the turbine, jamming it. Car was drivable; but, barely. No power at all from idle.

Replaced it with a rebuilt (from a mechanic I trust) unit. That one broke the shaft in under 100 miles, and put about 2 quarts of oil into the exhaust sytem as a result. The smoke was unreal...

I just replaced that unit (tonight) with a new OE unit (that was stashed on a suppliers shelf for a number of years). The smoke was still fierce on start up; but, it has gotten better since I started driving it. Cleaned as much of the intake as I could during the installation process. I also drilled a small hole in each muffler assembly to let any liquid drain out.

Is there any otehr way to clean out the residual oil in the exhaust; or, do I simply need to drive the car to burn it off? Car runs great, other than the stigma of stinking up the roads!

Thanks

99vwpassataeb · Jun 19, 2013

I would drive it and get the turbo hot to help burn the oil faster

spridel · Jun 25, 2013

This turned out to be the right answer! I drove it around 300 miles (on a trip) the few days afterwards, and the smoke cleared entirely. I am sure that the plugs also had to burn out a bunch of oil from the intake side as well. I *did* drain oil out of the intercooler piping after installing the turbo.

I was terrified that I had possibly cracked the head or something else serious when the smoke was so persistent after the first 100 miles or so. So far (knock on wood) all seems well.

zak99B5 · Jun 20, 2013

Out of curiosity, how did the wastegate get from the hot side to the cold side to be sucked in against exhaust flow and through metal housings?

spridel · Jun 25, 2013

Here is a pic of my turbo (sorry forgot I posted it on another thread!)

http://www.passatworld.com/forums/68-b5-garage/358097-k03-jingle.html

If you look carefully, you can see the open passage on the lower part of the "throat" of the turbo. That goes directly down to the chamber where the waste gate is.

spridel · Jun 25, 2013

The wastegate was sucked into the exhaust turbine. There are two passages in the turbo housing - one through the turbine, one open to the exhaust. I suspect that the wastegate flapper was detached, and may have been sucked up into the housing on a deceleration or startup when the exhaust gases may have been swirling around in there. Perhaps the turbine was spooled up and created a vacuum on the open port side...

Turbo Replaced

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