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Re: This is a transaxle, both trans & differential, >> Posted by CMyles [Email]  (#1126) [Profile/Gallery]
(more from CMyles) on Thu, 8 Dec 2005 12:27:11
In Reply to: This is a transaxle, both trans & differential, >>, BobD, Thu, 8 Dec 2005 09:03:56 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Yes sir, I previously described all of the bearings and things that would be rolling with the car in neutral and the clutch engaged (pedal not depressed). In this state you will NOT hear pinion bearing noise as the main (aka. pinion) shaft will not be turning. This is assuming that the car is standing still. If it were coasting down the road like this the main shaft would also be rolling, but independant of the input components and with its torque coming from the tires (not the engine). Hence here's another fun test for noise that takes that approach; Roll the car down a hill, engine off, in neutral, clutch pedal not depressed (clutch engaged). Now the chains and chainwheel bearings WON'T be rolling but the pinion shaft will. (Although the dynamics are reversed and theoretically different noises may result. Noise is noise.)I say this is fun because the bottom line is this: There is not much that you can fix without removing and disassembling the transaxle. If you have abnormal noise or serious shifting problems then you have internal wear or damage that, notwithstanding that you may have isolated the source, can't be fixed with the unit in the car and so eventually it must come out. Here is the list of things that can be done without pulling the unit;
chains and upper chainwheel bearing, leaking seals and gaskets, clutch related stuff, companion flanges (aka. inner drivers) and related, and you can increase the reverse idler engagement by reversing or bending the link. I've never pulled out the input/lower chainwheel unit with a box in the car and that would require pulling out the differential to access and withdraw the layshaft and I recall that there is no room to drop the diff. out with the unit in the car so forget that. A lot of people ignore noises and only bring in their car for repair when shifting becomes difficult or impossible. At either stage the gearbox comes out but when they wait for shifting problems it usually means that the unit is an organ donor. Having an idea of what's hurt in the transaxle before disassembly is OK but actually most of this stuff is obvious on the workbench to an experienced rebuilder. Hope this helps.
posted by 4.228.15...
, Thu, 8 Dec 2005 12:27:11 <-- Viewing This Message, Thu, 8 Dec 2005 16:17:58
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