A mountainbike racers quarantine m900s rebuild thread. what could go wrong...

[rsoffar]

OK. update.

Got my hands on a primary gear puller. But talk to me about how this fits on here...
that probably sounds like a weird question. But this doesn't just slide on easily for me? Are there different sizes? If I look at mine the bottom part is kinda cut in more than half a circle seems weird to slide over a gear ha. When I compare to other images online it seems most flatten out here so you can actually slide it over the gear.
Im close to taking the dremel to it just to hit those corners flat but figured id ask first.

IMG_9244 copy by rsoffar, on Flickr

[Duck-Stew]

Remove oil pump.  Remove transmission input gear.  Slide puller over crank gear after removing the nut (of course)...

[rsoffar]

All of that has been done. It just doesn’t seem to fit. The ears on the bottom cut out seem to not clear the smaller back part of the drive gear when try to slide it on from the side. I’m pretty sure that if I bust the grinder out it’ll slide on after but it’s such an expensive tool to be modifying

[Duck-Stew]

Can you post a photo?

[rsoffar]

Can you post a photo?

so here is a flick trying to slide it on. and trying to circle where the tool starts to catch on the teeth. sorry reallllly difficult to get light back there ha


fitissue by rsoffar, on Flickr


and thinking grinding these ears off might potentially solve

cuteats by rsoffar, on Flickr

[rsoffar]

when I google image search it looks like they should be flat...

[Speeddog]

Pic doesn't show it well on mine, but yes you can grind those flat.

Put the nut back on, but with a noticeable gap to the gear.

That way when it comes off with a BANG it won't hop off and crush your foot.

Hold the body carefully with a wrench so it doesn't slap up against the cases.

[rsoffar]

perfect. tomorrow we do battle

[rsoffar]

took the dremel and cut the ears off the tool

toolfix by rsoffar, on Flickr


amazing how much easier things can get with the right tool. Put it on applied a good amount of pressure on it then put heat to the gear and it popped off when it was ready. Loud

drivegear by rsoffar, on Flickr

[rsoffar]

IMG_9320 by rsoffar, on Flickr

bolts out, few different sizes used.

IMG_9319 by rsoffar, on Flickr

was definitely surprised how much oil was still in there ha. Spilled a good bit on the floor flipping the case over the couple of times to take the bolts out then flip it to take it apart.

IMG_9322 by rsoffar, on Flickr

and here's about where I left off for the day

IMG_9329 by rsoffar, on Flickr

[koko64]

 
You can buy a stainless bolt kit for the cases.

[Speeddog]

There are loose shims on the end of the crank, inside behind the clutch and inside behind the countershaft.
Shims both ends of shift drum as well.

[Speedbag]

You can buy a stainless bolt kit for the cases.

And well worth it.

My wife would shit a brick (possibly two) if I dragged a bike engine in the house and split the cases.   

[Speeddog]

And well worth it.

My wife would shit a brick (possibly two) if I dragged a bike engine in the house and split the cases.   

I'd be dead with one foot still on the doorsill.

[koko64]