I have a 1979 300D MB the Harmonic balencer has come loose and spins on the crankshaft How do i get it off.

Is the outer ring spinning?

I have no idea on what a OM617 harmonic balancer looks like- post a picture. Should be easy- most car you use a puller after removing the crank bolt.

Or is it spinning b/c someone has removed it and knocked the key out of the crank?


M

But a free spinning HB on a Mercedes Diesel has been the death of many cars. You will have to pull it off and take a good look at the front or "nose" of the crankshaft. If that is all beat up, you will have to look for a replacement engine. You can find a lot about this problem if you do a search on the diesel side of the forum.

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1983 Mercedes W123 240D 4 Speed 285,000 on the road with a 617 turbo, beautiful butter yellow, license plate # 83 240D INDIANA

2003 Jaguar Type X, AWD. beautiful, good mileage,
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This link has all the data you need.

Diesel Harmonic Balancer threads
Diesel Harmonic Balancer threads






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