Stripped rotor puller threads now what? 1150

[storm 64]

Personally, I would never take a hammer to anything on my bike, or a impact driver for that matter. But that's just me...

[posplayr]

Thanks for the tips.

too late for this rotor now, but for future reference MAPP gas is much hotter than propane and in my experience (limited) helps in this application.

[Carter Turk]

Ray, I thought about welding over the pins, but figured the rollers, were all scarred up. I do have another rotor and clutch in better shape sitting on the bench.

[Carter Turk]

Posplayer, can you get mapp gas in a small bottle like propane? Maybe I used too much red loctite the last time I destroyed my starter clutch and my rotor was loose.

[bluewool]

Posplayer, can you get mapp gas in a small bottle like propane?

http://www.bernzomatic.com/item.html?id=48

[blowerbike]

Personally, I would never take a hammer to anything on my bike, or a impact driver for that matter. But that's just me...

he has a broken bike...can't hurt the broken area now.
an impact is all part of working with large fastener's.

[posplayr]

Posplayer, can you get mapp gas in a small bottle like propane? Maybe I used too much red loctite the last time I destroyed my starter clutch and my rotor was loose.

http://www.lowes.com/pd_387417-13877-332477_4294772357__?productId=3647074&Ntt=torch&pl=1&currentURL=%3FNtt%3Dtorch&facetInfo=

[storm 64]

I'm sorry, ( I'm just a idiot) I'll just go back to the GSR story section... I'll let you guys beat and torque on your crankshafts at will. But please remember them crankshafts are only pressed together. A good impact with a hammer can move the shaft out of time... A true, welded and balanced crank is a happy crank.

[blowerbike]

I'm sorry, ( I'm just a idiot) I'll just go back to the GSR story section... I'll let you guys beat and torque on your crankshafts at will. But please remember them crankshafts are only pressed together. A good impact with a hammer can move the shaft out of time... A true, welded and balanced crank is a happy crank.

not to go to far with this but....
i worked in a crank shop...an impact won't touch(TWIST) it as far as the press fit..nope...never

[posplayr]

not to go to far with this but....
i worked in a crank shop...an impact won't touch(TWIST) it as far as the press fit..nope...never

he did say torque as well. The pullers have a set of flats to hold the puller while torquing the bolt, so this doesn't put any torque on the crank, but if you use an impact and use the engine inertia it will torque the crank even if it typically doesn't permanently twist the crank.

[storm 64]

Mr Blowerbike, in no way do I want to insult your intelligence. But your advice to Carter to "hammer" the stripped out puller on to the flywheel then weld it in place is questionable. The side load on the engine cases would be extreme not to mention the crankshaft itself. Now I'm not a crankshaft expert myself, but I wonder why engine builders weld the crankshaft in the first place if it doesn't move. I've Seen crankshafts that twisted even after welded. However some predetonation may have been involved. Lol respectfully Norm ...

[Carter Turk]

I spent most of the day trying to remove the rotor. Never got a hold of any mapp. Tried to make a crude slide hammer by using the two holes on the opposing side of the rotor. Broke nails and cotter pins trying to hold big washers on the slide. By the way, this is a welded super crank, back when Falicon had more respect apparently. Propane heat and slide did nothing, but take time to build something that didn't work.

I had a buddy helping me brainstorm ideas with limited tools and he had access to a three prong puller, so we tried that, even though blower suggested it wouldn't work. It was clear it wouldn't work on the rounded edge of the rotor, but since I was willing to sacrifice the rotor to GS higher ups, out came the angle grinder. I assure you, it felt very wrong using this tool. I proceeded to gouge slots big enough for the puller teeth to get purchase in the sides of the rotor. All the way through to the magnets. Then we started tightening the puller pin with hammer taps or blows and heat. We wanted to "win" really bad, but the thing wasn't budging.

My friend finally missed a tap on the puller and drew blood on his hand. After several tightening revolutions on the puller, we decided to use some heat with puller under heavy tension. As I torched heat around the middle of the rotor, I thought I heard a sound, but wasn't sure, then the rotor and puller shot off the crankshaft, I'm not kidding over a foot straight out.

[chef1366]

Success!

[posplayr]

Yep heat and tension and Maap gas

[bwringer]

Yep heat and tension and Maap gas

... and destruction and blood and sacrifice.