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#1
11-03-2005, 07:21 AM
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Banging sound in rear?????
Good day guys,
I'm a bit embaressed about this question. I know the 123 pretty well, but this has me stumped. I get from time to time a banging sound which sounds a bit like my exhuast is hanging and banging, but I cant find anything loose. It doesnt happen much but when it does, its loud........ any thoughts 
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85 300D 83 240D 
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#2
11-03-2005, 08:33 AM
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Have you checked your center drive shaft support recently?
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Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche
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#3
11-03-2005, 09:03 AM
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did you check
your half shafts? could be loose.
shocks? the tops sometimes are loose and bang. it is difficult to diagnose because the tops are buried under the seat. tom w
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.  [SIGPIC]..I also have a 427 Cobra replica with an aluminum chassis.
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#5
11-03-2005, 11:14 AM
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I had a car do that. The exhaust had shifted and was banging against the body. It made a terrible and very loud noise and took me forever to find it.
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#7
11-03-2005, 06:20 PM
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Exhaust & engine mounts
It will be your exhaust more than likely - check for up and down not just side to side - the front engine mounts can have completely split but look OK until you jack the engine up. Also check self levelling units for movement...
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#8
11-03-2005, 06:30 PM
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that surprisingly
small silly looking sway bar makes a lot of difference. it def feels wallowy with the link broken.
tom w
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual. [SIGPIC]..I also have a 427 Cobra replica with an aluminum chassis.
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#9
11-03-2005, 07:21 PM
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Replace the sway bar links. About $10 each. Easy to do. Mine sounded like I had a load of scrap iron in the trunk when I drove slowly on a rough road or over a speed bump. I also thought something was loose or worn out shock or muffler mounts. This is one fix that you will give you that happy DIY feeling. Let us know what happens.
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Bruce 73 220D (never left Germany) 81 300D (totaled) 84 300D (Purchased '03, sold '17) 85 300SD (purchased 10/01/03)
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#10
11-03-2005, 09:32 PM
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who is selling sway links for 10 bux?
my dealer charged me 20 each!
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http://i68.photobucket.com/albums/i1...Untitled-1.jpg
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#11
11-04-2005, 06:38 AM
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Every MB parts catalog on the internet has sway bar links for $10 each or less.
__________________
Bruce 73 220D (never left Germany) 81 300D (totaled) 84 300D (Purchased '03, sold '17) 85 300SD (purchased 10/01/03)
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Couldn't help myself, I just feel a good day coming on.
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