Quote:
Originally Posted by Mxfrank
If the Alda is fine, the problem is wastegate control. It's been a very long time since I've worked on a 603, but I think the wastegate is vacuum controlled. If that's the case, you will have to T in a vacuum gauge to the wastegate actuator to see what's happening. Wastegates can seize, so you want to use a mityvac to work the actuator, while observing the motion of the lever.
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In the 1987 300D, the wastegate should be a fully mechanical unit, no vacuum involved.
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Garage:
2017 Chevy Colorado Diesel (nanny state emissions)
2005 Volvo S40 T5 AWD, 77k
1987 Mercedes-Benz 300D turbodiesel, 4 sp auto, 156k - 28.7 mpg
1996 Tracker 4x4, 2 door, 16v, 3 sp auto. 113k - 28.6 mpg
WARNING: this post may contain dangerous free thinking.
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