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Car Forum / Porsche / Porshe 944 / February 2005Tech Help Please - 924/944 Flywheel Noise / Vibrations
On a 1986 924s (944) I can see that I need to change a heavy rubber piece that goes in between the fly wheel and another wheel inside the flywheel housing. My questions are: 1) What is that other wheel called? 2) Is this a form of a tranny balancer? Car trembles a lot in drive now. (Also extremely noisy) 2) What is that rubber piece called (a dampner)? 3) How hard is it going to be to change this part? To give you an idea of my experience, I've changed the water pump, timing, and balance shaft belts on this car. Can anybody offer instructions? 4) What should I expect to pay for this part at Porsche? Is there an aftermarket substitute? 5) And lastly, apart from making a lot of noise and a trembling tranny, should I expect any other problems from driving the car? TIA, John I think you're looking at the Flex Disc. It is a very simple dampner by design, but mine ran me about $800.00 in '96. It goes between the engine and the torque tube. Total bill from the mechanic was about $1250.00. My car also got bumpy and had a clunk. Hope this helps. > On a 1986 924s (944) I can see that I need to change a heavy rubber > piece that goes in between the fly wheel and another wheel inside the [quoted text clipped - 14 lines] > > TIA, John >On a 1986 924s (944) I can see that I need to change a heavy rubber >piece that goes in between the fly wheel and another wheel inside the [quoted text clipped - 3 lines] >1) What is that other wheel called? > Clutch Disc >2) Is this a form of a tranny balancer? Car trembles a lot in drive >now. (Also extremely noisy) > NO >2) What is that rubber piece called (a dampner)? > it absorbs the shock of the clutch release >3) How hard is it going to be to change this part? To give you an idea >of my experience, I've changed the water pump, timing, and balance >shaft belts on this car. Can anybody offer instructions? > be prepared to spend approx 15-20 hours on your back >4) What should I expect to pay for this part at Porsche? Is there an >aftermarket substitute? > to have it done by them expect upwards of $2500 >5) And lastly, apart from making a lot of noise and a trembling >tranny, should I expect any other problems from driving the car? > YES< the dampner will failure and you will lose the connection between the engine and the transmission, car will not go >TIA, John > presuming your car is a manual trans, not auto, I agree with doug, you need to replace clutch disk. DO NOT drive the car, you are at risk for destroying the transmission as well. instructions for changing clutch are in the service manual, the link has been posted many times - download it and read it. to summarize: disconect rear axles remove tail pipe and muffler, including cat remove transmission remove shift lever and linkage remove flywheel sensors, slave cyl, starter support rear of engine with floor jack, unbolt bell housing, remove R&R clutch reassemble I agree also on doug's time estimate if you are good. if you are not, it could take you twice that easily. > >On a 1986 924s (944) I can see that I need to change a heavy rubber > >piece that goes in between the fly wheel and another wheel inside the [quoted text clipped - 32 lines] > > >TIA, John >presuming your car is a manual trans, not auto, I agree with doug, you need >to replace clutch disk. DO NOT drive the car, you are at risk for [quoted text clipped - 7 lines] >remove shift lever and linkage > unbolt torque tube, rottate and slide to rear of car >remove flywheel sensors, slave cyl, starter >support rear of engine with floor jack, unbolt bell housing, remove [quoted text clipped - 72 lines] > > Sorry guys, forgot to mention that it is an automatic... Do the instructions apply anyways? Thanks, John >>On a 1986 924s (944) I can see that I need to change a heavy rubber >>piece that goes in between the fly wheel and another wheel inside the [quoted text clipped - 39 lines] >>TIA, John >> the instructions are basically correct, but the details are different - download the service manual that's available on teh web and read it CAREFULLY. the trans will be heavy - you will need a trans jack or a friend and a floor jack. > Sorry guys, forgot to mention that it is an automatic... > [quoted text clipped - 38 lines] > > > >>TIA, John John, If it's an automatic, then it is definitely your flex disk. Definitely an overpriced part, but shop the internet and you may survive it. Best of luck. > Sorry guys, forgot to mention that it is an automatic... > [quoted text clipped - 38 lines] >> >>>TIA, John |
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