Chaincase cover stuck

[YukonWolf]

And yes there are two dowelings in the cover one for the brake caliper and i believe the other for the ebrake. They were great places to pry against!

 

[Mooseman]

So was it the dowels that were holding on too much?

For the bolt, I had read some that got loose and would grind into the case but not broken. Lucky nothing else was broken. Be sure that if you get a generic replacement bolt that it is a hardened one, minimum 8.8 or better.

 

[maim]

hmm brothers sx viper did that last season as well. chaincase had not been apart in at least 5 seasons. good thing i was installing the reverse on it.

 

[YukonWolf]

it was jammed up around the dowels but I don't think it was stuck because of them. I think that bolt head was causing some kind of pinch between the chain and the cover.

I'll have someone stop by the yamaha deal for me to replace it with an identical bolt and washer. I should probably get that o ring for behind the cog as well since there did seem to be a small leak there that could have contributed to this or just been a symptom.

Yeah I'm pretty happy that there doesn't seem to be any other damage.

Thanks everyone for all your suggestions/advice and comments. Much appreciated.

 

[YukonWolf]

According to the dealer there was an update on the bolt that broke. The previous owner was suppose to have brought it back in to be updated with a stronger one but didn't. I think the problem has only been with the 07 models.