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#1
05-10-2006, 08:02 AM
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"clunk-twang" in a 4.5 108!?!
hey, all, i've got an odd situation here.
about a week ago i was driving around doing errands in the 108 and went through a negligible dip in the road. immediately felt/heard sort of a "clunk" with a "twanging" feature like a spring letting go -- it wasn't subtle. pulled in, gave the front suspension a once over since it felt like it was in the left front area. no joy, so i go on my way, being ever wary of new handling "developments." put it on ramps at home, thorough scrutiny of front end reveals nada and handling, braking, steering are as before. eyeball the subframe mount on the left (which i put in last year) and all seems fine. no apparent wierdness with the coil spring and all bolts, mounting points, steering box to frame rail, etc, look ok. of course, now i have convinced myself that the front end is a tad lower... am i nuts? any ideas? TIA 
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#2
05-10-2006, 08:10 AM
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Hi
I also get these clunk-twang sounds when "bumping" over small edges and so on. Will follow with interest...  Tom
__________________
1974 MB 230 4 cyl auto Sold 1973 MB 280SE #12004 1970 MB 230/8 #53280 1970 MB 300SEL 6.3 #4509 sold 1968 MB 300SEL 6.3 #0335 1972 MB 280SE 4.5 75k miles sold 1971 MB 230/8 60k miles sold 1972 Volvo 142 60k miles sold 1969 Opel Rekord 1900 sold 1974 L508D Camper
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#3
05-10-2006, 11:18 AM
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I would double check things like control arm bushings and tie rod ends, but I would also take the opportunity to grease the front end - all fourteen fittings!
Good luck & keep us informed.
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#4
05-10-2006, 07:38 PM
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Alternative clangs
Although you say you also "felt" the clunk - and although I have all sixes, no V-8's, may I respectfully suggest that you "sound" or "ping" your exhaust system for that frequency heard, any sagging/loose heat shields, etc - also any hoses such as wire-wrapped tranny cooler lines which could sag slightly under G-loads, anything like a radiator fan shield which could be just occluding the fan if its clips are loosening, license plate brackets hitting, a wayward shift rod just touching the driveshaft, etc.
In other words, travel about with knuckles or a small rubber hammer and metal rod, thumping things...OR... ...Perhaps bribe a small or medium-sized child or a large adult midget (whose prefrontal lobe is therefore fully developed) to jump up and down on your bumpers whilst you attend to the car's undersides (please secure parking brake)... May the Clang be With You, and Become Known unto You... Stan
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#5
05-11-2006, 07:26 AM
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thanx for the ideas. since i bought this in Dec 03 i have been religiously lubing the front end twice a year (or more) so i have spent a good amount of time under there and think i know where all the parts should be and how they interconnect. stan, good idea on the thumping. have been trying to replicate the noise, even by visiting the same dip in the road (it's on the way to Lowe's
 ) but have not heard it again.if i reach no conclusions or make no discoveries, i spose this thread will reach a natural, peaceful demise.
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#6
05-11-2006, 09:23 AM
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I've got the same issue when I hit the same bump at the same place. I gotta agree that I think it is exhaust. Although, the front-end on the supercar is all original so it could be any # of things on mine.
Not very helpful I know.
__________________
Pxland 2001 Honda Accord 1995 Jeep Cherokee 1973 MB 280SEL 4.5
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#7
05-11-2006, 12:59 PM
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My clunck-twang-tinkle comes from the exhaust and also the control pressure rod from the throttle linkage to the tranny.
Michael
__________________
Usta haves '69 250/8, '76 280C, 1971 250C 114.023, 1976 450SEL 116.033 Current have, 1983 300SD 126.120
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#8
05-11-2006, 05:01 PM
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Dip in the road
kpb -
Is that dip always at the same place, or does he move around?  If he's not there when you next go to Lowe's, try the road to Home Depot Stan
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#9
05-11-2006, 06:18 PM
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stan --
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