Re: HELP!! Force 125 Flywheel
Scubaman, what you are trying to do is more an art than a science...a keyed morse taper is the best way to attach something to a shaft that HAS to stay on,acceleration, vibration,heat, all help this flywheel gain an INTIMATE attachment to the shaft it is on....many times a shock load is the only thing that will make them give up...this is the method I have found to minimize damage on the force motors.......put your 3 bolt puller on, tighten it as much as you dare, dont want to pull the threads out of the flywheel...most will take 70 foot/pounds before failing[factory force puller] get a big screwdriver and wedge it between the block and the flywheel rim. a good place is aft of the flywheel, directly above the top cylinder, there is a strong ridge of metal there. pry up on the flywheel, carefully....a 1/8" deflection is ALOT half that is good. while holding the flywheel with the screwdriver providing a off center load on the taper, smack the puller bolt a good blow, many come on the first hit, some as may as 3....rotate the flywheel in between impacts, some come off when prying on the keyway, some do the opposite....the hammmer used is important, a 16 oz ball peen will leave you a sore arm and a mushroomed puller bolt, a steady, even on center hit with a 4 pound drilling hammer will give the desired result. the damage spoken of results from driving the crankshaft out of the top bearing the it hangs in and drops it far enough for the rod bearings to bind and fail..
