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#1
09-25-2007, 01:33 AM
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Strange Noise Started Tonight
I have a 1992 300E with the 2.6 motor. It's been running great since I got it, but then tonight as I got home it started acting up. As I'm driving through my apartment complex I hear a noise like a firecracker going off in the distance. Once I turned down my music and rolled down my windows I hear a sound like belts squealing. That went away after about 10 seconds and then it turned to a noise like putting cards in the spokes of a bicycle as I continued down the street. I parked it, turned it off, and restarted it, and the noise continued. It's not super loud, but gets a bit louder as the RPM's increase.
Any ideas? Thanks for the help. 
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#2
09-25-2007, 03:32 AM
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I would check the idler pulley on the serpentine belt. (it has one, right?)
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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#3
09-25-2007, 10:01 AM
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A few weeks ago my distributor cover, the black plastic square shaped piece at the front of the engine, broke loose and was hitting the engine fan. I would check for anything hitting the fan, and also the auxilliary fan(s) up in front of the radiator.
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1992 400E current 1988 300E sold 1973 280C totalled 1973 280SEL never got it running 1971 250C my first love but rusted out
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#5
09-25-2007, 10:16 AM
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sounds like your serpentine belt shredded.
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David S Poole European Performance Dallas, TX 4696880422 "Fortune favors the prepared mind" 1987 Mercedes Benz 420SEL 1988 Mercedes Benz 300TE (With new evaporator) 2000 Mercedes Benz C280 http://www.w108.org/gallery/albums/A...1159.thumb.jpg
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