Subject: Re: Vmax Pulling my flywheel Mike Sayers wrote: > > On 30 Mar 98 at 23:15, A McGregor wrote: > > > Tighten up to 60Ft lbs and sharp hit on bolt with 16oz hammer. Hold > > flywheel else all parts will end up on your floor. > > Best of Luck. Arthur McGregor New Zealand. > > Best luck wasn't good enough. > > I bought a harmonic balancer puller which seems pretty sturdy. > It came with grade 8.8 metric bolts that fit the flywheel like it was > made for it. > I put it on, tightened to 100 ft-lb, hit with 3-lb hammer several > times, no dice. > I tightened it up to 120 ft-lb. The flat steel foot on the end of the > puller collapsed. > > Anybody have any more suggestions? I'm off to the hardware store to see > if I can find something hard to put between the puller bolt (which is > round on the end) and the end of the crankshaft. I'm also getting > seriously concerned that the threads are going to pull out of the > flywheel holes before it moves. > > I have GOT to get this thing off, there is a m/c group trip coming up > in two weeks, besides which I want to ride, dammit. > > -Mike Sayers 1990 Yamaha Vmax Smithfield, NC > Vmax list admin AMA #694085 DoD #2026 VMOA #234 I have never pulled one off a V-max however Jet Skiis literally weld them selves on. Here is what I do. Put the puller back on, tighten as tight as possible. Use a torch on the taper area of the flyweel. The heat will expand the unit and it will jump off. DO NOT USE SO MUCH HEAT THAT THE METAL CHANGES COLOR. Usually as soon as the heat hits it they jump off. I have taken literally hundred of flyweels off this way. Let me know how it works. Pau S. ------------------------------ Date: Wed, 08 Apr 1998 23:42:17 -0700 From: scottvmax@earthlink.net Subject: Re: Vmax Pulling my flywheel Mike, Have you tried heating up the surface you want to pull free? When you do this the metal expands and sometimes loosens up. This is an old trick I learned working conveyors and robots. Scott H. At 01:52 PM 4/8/98 -0500, you wrote: >On 30 Mar 98 at 23:15, A McGregor wrote: > >> Tighten up to 60Ft lbs and sharp hit on bolt with 16oz hammer. Hold >> flywheel else all parts will end up on your floor. >> Best of Luck. Arthur McGregor New Zealand. > >Best luck wasn't good enough. > >I bought a harmonic balancer puller which seems pretty sturdy. >It came with grade 8.8 metric bolts that fit the flywheel like it was >made for it. >I put it on, tightened to 100 ft-lb, hit with 3-lb hammer several >times, no dice. >I tightened it up to 120 ft-lb. The flat steel foot on the end of the >puller collapsed. > >Anybody have any more suggestions? I'm off to the hardware store to see >if I can find something hard to put between the puller bolt (which is >round on the end) and the end of the crankshaft. I'm also getting >seriously concerned that the threads are going to pull out of the >flywheel holes before it moves. > >I have GOT to get this thing off, there is a m/c group trip coming up >in two weeks, besides which I want to ride, dammit. > > >-Mike Sayers 1990 Yamaha Vmax Smithfield, NC >Vmax list admin AMA #694085 DoD #2026 VMOA #234 > > ------------------------------ Date: Wed, 08 Apr 1998 13:38:31 -0700 From: PAUL SAYEGH Subject: Re: Vmax Pulling my flywheel PAUL SAYEGH wrote: > ANOTHER NOTE:I know a lot of people recomend hitting the end of the puller with a large hammer. I have witnessed many motors, crankshafts and cases get ruined by this practice by transmiting this shock to internal engine parts, especially bearings. A better way is to use an air impact wrench to tighten the puller which still gives you the vibration and shock without the inwards blow of a hammer that shocks and damages bearings etc. If you need some help call me this evening at 916-933-5067 (Calif.) Paul S. > > > > I have never pulled one off a V-max however Jet Skiis literally weld > them selves on. Here is what I do. Put the puller back on, tighten as > tight as possible. Use a torch on the taper area of the flyweel. The > heat will expand the unit and it will jump off. DO NOT USE SO MUCH HEAT > THAT THE METAL CHANGES COLOR. Usually as soon as the heat hits it they > jump off. I have taken literally hundred of flyweels off this way. Let > me know how it works. > > Paul S.