hi,
i've conducted a visual inspection of my jy m47 tranny. the oil was previously drained and empty before i saw it.
i didn't see any metal flakes anywhere inside the case. with the gearbox cover off, i slowly rolled the shaft inspecting all of the gears.
observations:
1. no wear, no teeth missing on any of the gears.
2. no leaks from top or back paper gaskets, cover or rear housing.
3. input shaft has some up and down play, but not forward or back.
4. no case damage
5. no play in rear shaft at all
6. can hear a ball bearing drop inside it's case when i rotate the shaft as if a ball bearing is loose, but if not packed in tightly, may be normal, not sure. no ball bearings or bearings are making any other noise and no bearings are loose inside the case.
7. no caked-on gunk inside the case, quite clean.
8. looks like the clutch decomposed some and some residue is inside the flywheel, which can be easily removed and clean. (clutch and pressure plate not taken)
question about point 3.
play in the input shaft may not make a difference because it's inserted into the engine and the input shaft splines wouldn't have any degrees of freedom. would this be correct?
after i have some first-level confidence in the tranny being ok this far, i'll ask some questions about what to replace while the tranny is out, obviously the sealing ring' what about the rear housing gasket, etc.
i'll post this in bb, also.
thanks,
byron golden
i've conducted a visual inspection of my jy m47 tranny. the oil was previously drained and empty before i saw it.
i didn't see any metal flakes anywhere inside the case. with the gearbox cover off, i slowly rolled the shaft inspecting all of the gears.
observations:
1. no wear, no teeth missing on any of the gears.
2. no leaks from top or back paper gaskets, cover or rear housing.
3. input shaft has some up and down play, but not forward or back.
4. no case damage
5. no play in rear shaft at all
6. can hear a ball bearing drop inside it's case when i rotate the shaft as if a ball bearing is loose, but if not packed in tightly, may be normal, not sure. no ball bearings or bearings are making any other noise and no bearings are loose inside the case.
7. no caked-on gunk inside the case, quite clean.
8. looks like the clutch decomposed some and some residue is inside the flywheel, which can be easily removed and clean. (clutch and pressure plate not taken)
question about point 3.
play in the input shaft may not make a difference because it's inserted into the engine and the input shaft splines wouldn't have any degrees of freedom. would this be correct?
after i have some first-level confidence in the tranny being ok this far, i'll ask some questions about what to replace while the tranny is out, obviously the sealing ring' what about the rear housing gasket, etc.
i'll post this in bb, also.
thanks,
byron golden