I am having a hard time getting the flywheel to seat on the crank. Any tips on how to do it. Thanks
Flywheel help
- Thread starter dbowhntr
- Start date
valve grinding compound ............throw a little on the crank's beveled area, stick the flywheel on, without the key, and start turning it back and forth, about a half turn then back, you'll begin to feel it getting harder to spin, thats the flywheel actually mating with the shaft, it may take a few applications of the grinding compound to get it right,
then spray everything off with brake cleaner, and torque the nut/thick washer to spec.
this mating of the bevels, is what really holds the flywheel in place, the key just aligns the timing
then spray everything off with brake cleaner, and torque the nut/thick washer to spec.
this mating of the bevels, is what really holds the flywheel in place, the key just aligns the timing
So I took the flywheel off to replace the main coil due to weak spark. Now I have a killer spark but it runs like crap. the key way is aligned but it seems like something is off.
If the flywheel taper mating surfaces are not good, it is possible that the woodruff key has sheared when tightening the nut.
After lapping in the flywheel and shaft, put the flywheel on without the key in there and tighten to specs. Then remove flywheel again, if it comes off easily the taper is not mating and will need to be lapped some more, using the finest compound you can find..
When you feel you have good mating surfaces, refit the flywheel and take it off, and back on again as few times until it is hard to get off.
Sometimes coarse cutting compound for duco can help get a good interference fit of flywheel and shaft.
Make sure there is absolutly no paste or compound left on the shaft of flywheel as it will interfere with the taper.
After lapping in the flywheel and shaft, put the flywheel on without the key in there and tighten to specs. Then remove flywheel again, if it comes off easily the taper is not mating and will need to be lapped some more, using the finest compound you can find..
When you feel you have good mating surfaces, refit the flywheel and take it off, and back on again as few times until it is hard to get off.
Sometimes coarse cutting compound for duco can help get a good interference fit of flywheel and shaft.
Make sure there is absolutly no paste or compound left on the shaft of flywheel as it will interfere with the taper.
