[diesel_mercedes] THUMPING AND ACOMPANYING NOISE

 

My 300TD just started making a chunking feeling thing and and an accompanying sound as I start out in first gear. More throttle makes it worse. It completely dissappears on deceleration. Accelerating in reverse is smooth as silk while decelerating in reverse makes it show up. The diff gears don't look bad and still have a lot of flat at the tops - no razor blades. There is some very minor slop in the spider gears and drive pin - to be expected on a rig with 370k miles. I can feel it in second too but to a lesser degree. Unless the tranny uses the same gear pack for 1 and 2 as it does for reverse, I can't explain it. There was a full compliment of gear oil too. I have a spare diff in good shape that would eliminate the diff as a suspect. but if its the tranny my long time trusted girl is over. :(
There is also a very long crack in the under carraige that I think is critical and may explain the noise. I will post files to


bogys 300 TD thumping noise photos


any discussion will help

TIS

Bogy

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Posted by: polespearbogy@yahoo.com
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[diesel_mercedes] Re: Ignition Switch & Shift Rod Bushings

 

Good to hear Nate - I too am a 3 keyed lock un-locker....and it's awesome to be able to lock it again....anyone who sees the car lock and unlock usually notices the decidedly analog behavior as the locks slowly engage/dis-engage....and are shocked to learn they're vacuum operated. As far as I know, the only "digital" device in the entire car (as of 1984), is the temp gauge - which is spot on correct to this day. 

I've been very lucky with the AC so far this summer - once I got it properly charged it's working well enough that I'm going to leave it be....but that doesn't mean I can't visit the Klima folks - it'll just have to wait until after I get back from taking my son to Florida Tech next week into the following week - for that trek, we're renting a Ford F150 to drive down and flying back....

-Barton

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Posted by: Barton Fiske <barton.fiske@gmail.com>
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