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#1
03-13-2002, 06:56 PM
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sound deadening a W126
I'm getting a lot of rattiling from the trunk and rear deck. does anyone know what the problem might be. The car is a 1983 300sd. I'm not sure wether to go with dynamat or a spray on dampner. Also does anyone have any experience with cutting the first aid kist and storage from the rear deck? thanks
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#2
03-14-2002, 12:11 AM
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Maybe the trunk seal?
I would go for Dynamat, but I probably wouldn't do it for a diesel unless I have too much money. (not for these old diesels at leasT)
__________________
2008 BMW 335i Coupe
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#3
03-14-2002, 10:42 PM
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Quote:
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#4
03-14-2002, 10:48 PM
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Why I wouldn't do it for a diesel?
Maybe because it makes a lot of noise (especially on idle), but I guess it could be different because I have a W123. If I had the spare cash though (don't me wrong), I'd get a professional Audio shop to soundproof the whole car..  I was day dreaming one day and putting the list of all the things that I'd do if I had a 300D.. and that was one of them. Why Dynamat? I don't know. It's just that the idea of a thin liquid as a sound dampener.. I could be wrong though.
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2008 BMW 335i Coupe
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#6
03-16-2002, 02:10 PM
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a way to get cheap dynamat material is go to home depot (i got mine at Lowes though) and buy this product called "peel n seal" in the roofing section. it is a rubberish, tarish material with aluminum back plating. not as good as dynamat but for 10 buck a roll get 2 or 3.. i will get some pics of it soon. good luck
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#7
03-16-2002, 07:41 PM
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Industrial strength sound control go here:http://www.mcmaster.com/ search sound dampener/sound dampening/sound control. They have peel and stick plus some rather high end sound solutions. I use their thin mass loaded dampeners in place of the vapor film in my door panels and their thicker mass loaded "mat" material all over, where you would Dynamat.
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The Golden Rule 1984 300SD (bought new, sold it in 1988, bought it back 13 yrs. later)
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#8
03-17-2002, 01:09 AM
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I got my keys locked in my trunk the other night and this caused me to remove the plastic compartments for the first aid and storage compartements. The rattling that had been plaguing me is 100% gone. The only rattling now is from the trunk. and the bass hits about twice as loud now and VERY deep. I think I'll probably get a can of spray on for the spare wheel well and a sheet of dynamat or somethinfor the trunk lid
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W126 1983 300SD 286,000 miles and ticking Baby blue exterior Grey MB tex Recent work: Replaced air cleaner mounting brackets and heat shields Replaced alternator, fan and power steering belts Replaced positive battery terminal Replaced negative battery terminal and cord New Duralast Battery My car needs work.
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