Would you use???

[Indysteve]

I must admit I take a lot of chances on parts from fleabay. My philosophy has always been that most people are decent and honest and are not trying to get you.

That said, I purchased a flywheel/starter clutch/rotor/magneto whatever the description dujour, wanting to make life easier should I need to repair my charging system in the years to come, I bought a rotor from an 82 GS850 to go on my 79 GS850.
I also bought a stator to go along with the rotor from a 2002 GS550.
18 pole, windings are like new, etc. etc.

Anyway, I just got around to pulling the rotor from the bike, man is that fun!!!, and was ready to prep and install the 'new' rotor.
I always do a surface check before installing any part to check for deformity and I found the inner race to be scored.
The scoring is not a run some light emery paper or steel wool and remove type, you can feel the grooves in the metal surface.

My crankshaft end is pristine, not a score, mark, or groove to be found.

Would you all take a chance and install after a light clean up?
Or would you mark this up to being taken and start to find another?

[tom203]

The tapered surface inside the "new" rotor is scored? or the magnet area? Unless it spun on crank during some accident, I can't see how this would happen. How does the exterior of this rotor look?

[Indysteve]

The exterior looks fine.
The only way I can figure this happened is if they ran it not tightened.

The grooves are all the way around from front to back.

[Indysteve]

Sorry, the tapered surface.
The magnets are fine as are all the rest of the surfaces.

[bwringer]

Got pics?

It would probably be OK, unless it's some sort of heinous mess. Maybe.



Also, I've got a couple of these rotors around and I live on the NW side of Indy. You're welcome to one of them, or maybe we can get together and look at the rotor you have.

[tom203]

Sorry, the tapered surface.
The magnets are fine as are all the rest of the surfaces.

I hate to suggest this but.... I remember using a brake cylinder hone on a inside taper back in the dark ages, but I can't recall why.

[Indysteve]

Yeah, that thought had run through my head.

My concern is the taper is pretty close tolerance anyway, if I remove the crud it may be way out of tolerance.
I have looked and do not see any spec on tolerances for that, my bet is that they consider the rotor a 'throw away' part.

I found another for 25$ shipped and I bought it.
I don't need the headache if there would be some spin on the end of the crankshaft.

[mighty13d]

Yeah, that thought had run through my head.

My concern is the taper is pretty close tolerance anyway, if I remove the crud it may be way out of tolerance.
I have looked and do not see any spec on tolerances for that, my bet is that they consider the rotor a 'throw away' part.

I found another for 25$ shipped and I bought it.
I don't need the headache if there would be some spin on the end of the crankshaft.

you must have missed bwringer making an offer that would be better than buying another one and possibly being right back in this situation...