Flywheel came loose (found it, with pics)
- Thread starter jura
- Start date
Endo
Non-tree hugger
- Location
- Northeastern Indiana
Something doesn't seem right. The anodizing on the taper isn't worn? Usually it will destroy the taper on the inside before it contacts anything.
WAB
salty nuts
- Location
- coastal GA
Did it beat up the key or the key slut ont he flywheel? The tapered area on the inside of the flywheel looks fine from the pics.
Wanna sell it? I'd prolly run that sucka
edit: nevermind see you're in Belgium
Wanna sell it? I'd prolly run that sucka
edit: nevermind see you're in Belgium
A 3mm ring on the inside of the hub is worn.
I know something is not right, even the bolt of the flywheel
wasn't loose.
Endo
Non-tree hugger
- Location
- Northeastern Indiana
So it was still tight on the crank? No wiggle?
I didn't really check but there must have been wiggle that caused the damage.
I think, but I'm not 100% sure, that the bolt wasn't loose. 3 years ago I putted loctite on it. Very hard to tell if the bolt was still tight because I used compressed air to loosen the bolt. I think the bolt came out 3mm and stayed there or the bolt was never tight enough.
I really don't know.
Endo
Non-tree hugger
- Location
- Northeastern Indiana
I 'm thinking that some type of debris got stuck onto the magnet or possibly the stator is moving some how. How did you notice it?
Everything is fine with the stator. No damage at all.
I noticed it a couple of weeks ago when I pushed the start button, sometimes the starter spins but the engine didn't turned over. I rode that way a couple of weeks. I tought it was the bendix and I ordered a new one. Tonight I opened the cover to put in the new bendix and found this.
Endo
Non-tree hugger
- Location
- Northeastern Indiana
If the stator is fine what wore the groove in the flywheel? Make sure there is no debris floating around. And how did the key/key way look?
The stator plate must have wore the groove in the flywheel but I checked the plate and didn't notice any damage. The key looked fine and no damage on the key way.
I know, it's a strange story but that's how it is.
Didn't found any debris, only the aluminium dust coming from the flywheel.
Should you still use it that way?
WFO Speedracer
A lifetime ban is like a lifetime warranty !
- Location
- Alabama
As long as it rotates without hitting anything ,stays tight on the crankshaft and produces current ,run it.The one I have has weak magnets and won't produce any spark.
And what about the damage on the ring gear as you can see in the pics?
Nothing major but damaged.
Endo
Non-tree hugger
- Location
- Northeastern Indiana
Hard to tell from the pics. If it is just minor wear I wouldn't worry about it. If it is something major I would wonder what did it.
WFO Speedracer
A lifetime ban is like a lifetime warranty !
- Location
- Alabama
If it actually had come loose the key would have sheared instantly,the flywheel taper is what holds it on,the key only positions it while you tighten it down.
- Location
- New York Crew
What brand was that? Call the manufacturer and send them the picts. I would worry about having a balance issue if you reused it as is. Possible get it balanced???
WFO Speedracer
A lifetime ban is like a lifetime warranty !
- Location
- Alabama
It Looks Like A Jetinetics And They Are No Longer Interested In Doing Repairs Though They Will Gladly Sell You A New One.
Endo
Non-tree hugger
- Location
- Northeastern Indiana
I had a radz come loose on a 440 and it never sheared the key....but it did cause a overheating of the crank and completely chewed the ******** out of the taper. Some dumb 6ss didn't tighten it enough :banghead: and only used a lock washer. Lesson learned.....
It's a RAD charging flywheel and I bought it brandnew.
No possibility over here to let it balanced.