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  #1  
Old 06-01-2000, 11:26 AM
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Join Date: Mar 2000
Location: Dallas, Texas
Posts: 218
Recently had new engine and tran mounts installed, at the same time as the harmonic balancer assembly. After a 6hr trip (75-90 MPH--had to keep up with a Corvette) the engine feels like it "rocks" forward when warm. When I come to a stop, holding the brakes, the engine feels like it is pulling and drones/vibrates badly, like it did before the mounts. Let off the brake--sounds fine. I have noticed the mounts for the pass side engine shock seem worn, and the shock itself seems slightly loose. The droning sound only seems to happen when the car is warm, and is especially bad when braking at the bottom of a hill.
What is the importance of the engine shocks, and are they what keeps the engine from "rocking" forward? The mechanic that changed the harmonic balancer thought the injector pump might need to be calibrated, but would that cause this condition?
I am anxious to get this cured, as I carry people in the car regularly. It sounds like an old rickety car now, not like a Benz should.
THANKS!!

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R Talley
84 300D-T
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  #2  
Old 06-01-2000, 08:33 PM
Larry Delor's Avatar
What, Me Worry?
 
Join Date: Jun 1999
Location: Sarasota, Fl.
Posts: 3,076
My engine sounded "weird" for a day or two...just before it threw the balancer for the third time. (the second time it just clattered alot).
If it were my car, I'd be all over that balancer like flies on poop. Then I'd try some Redline stuff.

-Larry

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03/83 300D 184k
07/73 280 160k
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  #3  
Old 06-02-2000, 12:07 AM
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Join Date: Mar 2000
Location: Dallas, Texas
Posts: 218
Amazing what you find out when you open the windows... The droning is coming from the rear. I knew the axle shaft was popping some, but not THAT bad. I climbed underneath, took hold of the shaft, and it rattles up and down. Hopefully hasn't done damage to the differential. Found a good replacement from a local shop (used w/warranty) for $100. That's Sat.'s project.

Still curious about the engine shocks. What would a bad one do? It has a "clank" when you turn it off. Could that be it?
Thanks!!!

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R Talley
84 300D-T
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