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  #1  
Old 09-15-2008, 09:41 PM
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Location: Tilton, NH
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1983 240D shakes during acceleration

I recently acquired a 1983 MB 240D. The car runs great except for a couple of quirks, mostly trivial. However, one of its quirks is somewhat alarming. The whole car seems to shudder/vibrate/shake at 20 mph during acceleration. It only does this at 20 mph and it does not make any difference which gear I'm in. Once I accelerate past 20 mph the shaking stops and the car runs smoothly at any other speed. I was wondering if anyone had any ideas what this could mean and how I go about fixing it.
Thanks

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  #2  
Old 09-16-2008, 01:12 PM
83 300SD
 
Join Date: Mar 2007
Location: Shawano, WI
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U-joint or flex disc bad?

John
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  #3  
Old 09-16-2008, 04:19 PM
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check the flex disk. change it now while you can.

that's how Old Pete almost died.
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Old 09-16-2008, 08:53 PM
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While your under there grab the drive shaft where the two come together and see how much slop there is then look at the rubber that holds the center bearing, that could need replacing. That and/or the flex couplings are easy to fix.
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1985 Euro 240D 5 spd 140K
1979 240D 5 spd, 40K on engine rebuild
1994 Dodge/Cummins, 5 spd, 121K
1964 Allice Chalmers D15 tractor
2014 Kubota L3800 tractor
1964 VW bug

"Lifes too short to drive a boring car"
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Old 09-16-2008, 09:04 PM
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Thanks for the comments. Please humor an uninitiated, new, Benz owner and tell me what a flex disc is and where it's located. I fancy myself a fairly ok backyard mechanic, but this is my first time with a mercedes and my understanding of diesels is also quite limited. Also this is my girlfriend's car and she wants to convert it into a grease car (hippy). Any suggestions for the conversion such as kits and/or things to avoid? I live in New England. How reliable are these converted cars in the cold? Thanks for your patience.
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Old 09-16-2008, 09:16 PM
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A good time to learn about the search function would be now Look under "flex disc" and "center bearing", lots there

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1985 Euro 240D 5 spd 140K
1979 240D 5 spd, 40K on engine rebuild
1994 Dodge/Cummins, 5 spd, 121K
1964 Allice Chalmers D15 tractor
2014 Kubota L3800 tractor
1964 VW bug

"Lifes too short to drive a boring car"
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