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Pop pop bang..........then silence, look what I found!

Joined Sep 2013
369 Posts | 209+
canolbarth cymru
Donnington Park, last session, last lap, 2 corners to go, bike flying all day, grinning like a fool:D, then engine spits and pops and like a dead Basil Brush boom boom no more!:unsure:
This is what I found!
 

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Inner of flywheel has worked it's way out and sliced through stator wire:eek: I think I can repair the stator wire but what can I do about the flywheel? I'm hoping someone will have come across this before and will say glue it in!:unsure::unsure: Really not impressed, stator and flywheel less than 3 hours work! A small nick has been knocked off the stator laminate too don't think it will be a problem? 9 o'clock in picture.
 

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Ayyy ... bummer.

They're not glued to begin with ..?

Was working on a '96 Husky - we found the flywheel epoxied together, and local engine wizard said that that was the way to go. Was never sure if they're glued to begin with or not?

Looks different from that one though.

fwiw ... :)
 
Tourist, looks like its a press fit? Hoping I can bond it back in permanently?:unsure:
 
intersting Canolman

my initial thoughs are degrease thourogly first with detergent press it back in then get someone with TIG radiator welding experience (very thin materials) to put 3 tacks between the thin steel and the flywheel cooling with air or wet rag between tacks

then use a lot of loctite 401 low viscosity cyanoacrylite or pacer brand ZAP red, zap red is thinner and very good stuff

high temp low viscosity epoxy with rubber ball filler is probably a better choice but I would take the whole thing apart first if using the epoxy
 
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Cheers Bushie, looks like a press fit to me, I'll ask the sidecar boys if it's happened to them. Piss poor quality control tho!:mad:
 
ouch! That sucks. I confess, however, that it could have been so much worse. Looks to be a fairly straight forward fix. Still, sorry it ended your day
 
Cheers Goose, when the pick up truck came out to collect me the first Marshall on the scene shook the bike from side to side, unwritten rule here that if you run out of petrol you have to push it home:rolleyes: no problem with crashing or breakdowns, I passed the test and got a ride in.:p
 
JB Weld got an epoxy putty good for 450°, JB weld High Heat 450 degree F resistant epoxy putty, what do you think?:unsure:
 
i would say its too thick to get in where needed but i don't have a flywheel in front of me

would be better than nothing

FWIW usual temp of the part is about 70-80deg C
 
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Talking to some of the sidecar-x boys and yes it has happened before, they just bond it back in or leave it out altogether!:eek:
I was thinking of applying the resin in the rim of the 'top hat' so that it bonds to the outer edge of the rotor, that way any excess can easily cleaned up:rolleyes:
When I pulled the sleeve out there was a very small amount of resin, a small blob on the outer edge and same on the base pressing against the bottom of the rotor, neither looked as if they had 'squashed' metal to metal so to speak.
 
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Flywheel stamped FP8035 KTM? Would spin in the opposite direction and the key way in the wrong place?:unsure:
 
possibly.. i don't have a flywheel i can check, if nobody can help on here ask on ktm talk rfs section which model its for and then x reference part numbes
 

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