I just finished replacing yet another set of crank bearings in a Stihl saw. Each of them has had severe gum and dust buildup on the flywheel. Stands to reason this might be partial cause of crank bearings going bad on a saw that doesn't look that bad. This is not a lot of data, but it seems to be a trend. It is obvious that overtightening the chain could wear them out as well.
I guess I could only spread the word to users to periodically clean the gunk out of your favorite saw's flywheel blades.
I use a small flat screwdriver, a .22 caliber gun bore copper brush, and a shop vac. I think I got about a half cup of black oily gunk out of this last one. Took ten minutes to clean it.
Mine are all clean :hmm3grin2orange:
I guess I could only spread the word to users to periodically clean the gunk out of your favorite saw's flywheel blades.
I use a small flat screwdriver, a .22 caliber gun bore copper brush, and a shop vac. I think I got about a half cup of black oily gunk out of this last one. Took ten minutes to clean it.
Mine are all clean :hmm3grin2orange:
