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Car Forum / Volvo Cars / January 2005240 transmission whining
Car: 1989 Volvo 240 (B230F engine) "RWD" Symptom: Strange intermittent Austin Maxi gearbox type whine coming from somewhere around the gearbox/prop-shaft/diff area. Sound level ranges from not noticeable to very loud and comes and goes with no apparent correlation to speed or anything else. Other Factors: If I declutch whilst going along the sound remains and if I also declutch and knock out of gear the sound remains, if I brake the sound remains. Eventually however the sound goes away only to come and go again at some other indeterminable point. Also, does not appear to be temperature dependent. Anyone any ideas what this could mean? Cheers, Graeme. > Car: 1989 Volvo 240 (B230F engine) "RWD" > [quoted text clipped - 14 lines] > > Graeme. The first thing to check is the center support bearing on the driveshaft, it's a common failure on high mileage cars. > > Car: 1989 Volvo 240 (B230F engine) "RWD" > > [quoted text clipped - 17 lines] > The first thing to check is the center support bearing on the driveshaft, > it's a common failure on high mileage cars. Thank you, I have the same symptoms above 70 kph seeming to go away after a few k's (260/auto) although mine's like the noise rail wheels make when you travel alongside a train. That does sound like a very likely cause I hadn't considered. > > Car: 1989 Volvo 240 (B230F engine) "RWD" > > [quoted text clipped - 17 lines] > The first thing to check is the center support bearing on the driveshaft, > it's a common failure on high mileage cars. This is probably the carrier bearing, but in cases where it mainly happens when accelerating or decelerating, it is probably the rear trailing arm bushings; worn ones allow the rear end to shift a bit, and put strain on the carrier bearing. That happened to us two years ago, and the carrier bearing was fine after the bushings were replaced.  Signaturehttp://www.albany.net/~mjc1/index.html > > > Car: 1989 Volvo 240 (B230F engine) "RWD" > > > [quoted text clipped - 27 lines] > after the bushings > were replaced. Worn trailing arm bushings will usually also cause a sagging rear end, as well as a clunk when shifting into reverse or drive with an automatic transmission. Both those and the carrier bearing are common high mileage failures. > > > > Car: 1989 Volvo 240 (B230F engine) "RWD" > > > > [quoted text clipped - 36 lines] > transmission. Both those and the carrier bearing are common high mileage > failures. I don't doubt you, but our 240 had neither of those symptoms, probably because I have a Keen Ear for odd mechanical noises, and it got caught early. Drives me nuts with three old cars. ;) Signaturehttp://www.albany.net/~mjc1/index.html > > Worn trailing arm bushings will usually also cause a sagging rear end, as > > well as a clunk when shifting into reverse or drive with an automatic [quoted text clipped - 5 lines] > because I have a Keen Ear for odd mechanical noises, and it got caught > early. Drives me nuts with three old cars. ;) Not saying you were wrong, just adding some additional symptoms to look for. > Not saying you were wrong, just adding some additional symptoms to look for. Spoken like a true diplomat! Thank you for your past advice - it is still well worth reading and archiving. just my $0.02 K.P. Canada >>>>>Car: 1989 Volvo 240 (B230F engine) "RWD" >>>>> [quoted text clipped - 47 lines] > because I have a Keen Ear for odd mechanical noises, and it got caught > early. Drives me nuts with three old cars. ;) Thanks chaps for the pointers :-) Graeme |
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