Little or NO power after bottoming out suspension- 1981 300SD - PeachParts Mercedes-Benz Forum

whunter · #11 03-10-2013, 05:32 PM

Quote:

Originally Posted by funola

A spun bearing is not that large of a frictional load. With 120 HP shouldn't it be able to overcome that additional frictional load and reach full RPM? And why would it limit upper RPM and not affect the idle? Shouldn't the idle RPM drop by some corresponding amount?

The engine is closer to 38 HP at the moment.

This was a 70+ MPH rolling vertical impact (that did not stop the car).
The lower oil pan deformed in the oil pump pickup area.
This oil pan punched the rubber pickup into itself = cutting off oil supply.

My best guess at this point:
* Secondary accessories damage = pull all of the belts and test - run the engine.
* Engine bearing oil starvation damage.
* After reading what he has done + several discussions / diagnostics, the fuel supply system is totally eliminated. If removing the belts does nothing, and he can find another (good used) injection pump, it would be worth trying.

Complete 40 channel accelerometer (instrumentation G-force) impact data from this incident would be highly educational, unfortunately it does not exist.

FYI:
The symptoms have a few similarities with the following thread. Warning: This is huge 855 posts.

wont start for anything! 1985 300SD
wont start for anything! 1985 300SD

As I recall, he went through five injection pumps before the engine was running right.

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