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#1
06-04-2009, 03:35 PM
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Loud Thumping From Rear
This problem has been happening for a few months now. I'm thinking that it is most likely had axles due to a torn CV. The thumping comes and it goes, but it is really annoying and sounds horrible. It never seems to happen until I have driven the car on the highway for about 2 hours, then it starts (sometimes), it is a thumping that seems to increase with increasing acceleration, but when you let of the gas (still in drive) it stops completely. I'm thinking that it is probably a bad CV joint (especially since one of them recently ripped, but I refilled with grease and duct taped/saran wrap/zip tied back together). Most other posts about bad CVs seem to report that the noise does not stop when coasting so I just wanted to make sure my problem wasn't likely something else. I think I'm probably going to refill all the cv boots with lubricant. I used black grease (the all-purpose kind that you pump out of th little tubes) because I when I went to the local Mcparts they said there was no such thing as CV joint lubricant. Should I be using some other type of lubricant. I hope a re-lube will solve/lessen the problem because I have neither the time or $$ to replace axles and I need the car to operational. Thanks
__________________
 '85 300td Frybrid WVO Kit
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#2
06-04-2009, 03:41 PM
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The next time it happens try backing up...
Mine started making big noise and that would ' reset ' the quiet for many miles...
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1980 240d , chain elongation, cam marks reference: http://www.peachparts.com/shopforum/showthread.php?threadid=10414 http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html evap fin cleaning: http://www.peachparts.com/shopforum/showthread.php?t=156207&highlight=evaporator A/C thread http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html
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#3
06-04-2009, 03:46 PM
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Inspect your flex discs too. Look for checking tears, pieces hanging off and rips.
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AJ 1985 300D (SOLD) 
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#4
06-04-2009, 03:55 PM
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The MB joints have OIL in them... grease just gets thrown outwards and sticks to the boots... that may have caused your problem..
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1980 240d , chain elongation, cam marks reference: http://www.peachparts.com/shopforum/showthread.php?threadid=10414 http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html evap fin cleaning: http://www.peachparts.com/shopforum/showthread.php?t=156207&highlight=evaporator A/C thread http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html
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#5
06-04-2009, 04:37 PM
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If its thumping then I am betting center carrier bushing/bearing.
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http://superturbodiesel.com/images/sig.04.10.jpg 1995 E420 Schwarz 1995 E300 Weiss #1987 300D Sturmmachine #1991 300D Nearly Perfect #1994 E320 Cabriolet #1995 E320 Touring #1985 300D Sedan OBK #42
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#6
06-07-2009, 10:30 AM
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Quote:
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'85 300td Frybrid WVO Kit
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#9
06-08-2009, 10:37 AM
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gear oil
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1985 300TD Turbo Euro-wagon 1979 280CE 225,200 miles 1985 300D Turbo 264,000 miles 1976 240D 190,000 miles 1979 300TD 220,000 GONE but not forgotten 1976 300D 195,300 miles 1983 300D Turbo 175,000 miles http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg
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