Right then, the nut and tab-washer are fitted.....although, i took it to 70Nm and the torque wrench was clicking away.The tab-washer and the sprocket were still very loose, so i took it to 90Nm and again, clickety click and the washer etc, were still rather loose.So i thought sod it, keep going until the washer and sprocket were waggle free, which i did and folded the tab over and put everything back together again.I'm assuming that the sprocket isn't supposed to be loose?, i'm thinking that the reason the torque wrench was clicking, was because the nut was threading the slightly damaged shaft and it was reaching the specified Nm due to this?Oh well, time will tell i expect, i put threadlock on the shaft, it's got new chain and sprockets fitted, plus of course the new nut and washer, we'll see how things go.It's gonna be a nervous ride, the next time i take her out.G ; )
Darrsi, I didn't want the nut to be siezed when it comes to sprocket fitting next time but I may be wrong... I'll check at near future if everything's right (tight) under the cover.
I agree the O/S thread looks bad but as i mentioned in my last post, i recon the fact that the torque wrench was clicking at 90 Nm, was probably because the new nut was cutting a thread into the shaft.I do have access to a very good engineer/welder, although whether to go arc or mig, i will have to discuss with him.To be honest, now that i have a new chain, sprockets and the 12mm nut on, i'm inclined to let him wend the nut on, as i few on here have done...i think?I should get a few years out of the bike if i look after the chain but to say i'm rather gutted, is an understatement, i really was happy with the bike, until this shambles unfolded.It's probably too late to go shouting at Yamaha for a new shaft to be fitted, although i might do, just to see if they will honour the fact that they have messed up with this issus.Thanks for all the advice guys.G ; (
I'd whip it off and remove sprocket, clean all with wire brush and refit with thread lock, torque to 80 and see how you get on. Or whilst its all off check the nut runs up the shaft.
Quote from: BluprintZ on 21 August 2013, 12:09:40 amI agree the O/S thread looks bad but as i mentioned in my last post, i recon the fact that the torque wrench was clicking at 90 Nm, was probably because the new nut was cutting a thread into the shaft.I do have access to a very good engineer/welder, although whether to go arc or mig, i will have to discuss with him.To be honest, now that i have a new chain, sprockets and the 12mm nut on, i'm inclined to let him wend the nut on, as i few on here have done...i think?I should get a few years out of the bike if i look after the chain but to say i'm rather gutted, is an understatement, i really was happy with the bike, until this shambles unfolded.It's probably too late to go shouting at Yamaha for a new shaft to be fitted, although i might do, just to see if they will honour the fact that they have messed up with this issus.Thanks for all the advice guys.G ; (Worth a try at the very least!When you speak to Yamaha show them the service note number: SERVICE NOTE 2005-12A"....Any FZS600 Fazers model (1998-2003), regardless of whether it still in warranty or has been serviced officially in the Dealer channel can be inspected at any official Dealer. Remove the existing nut and washer. Measure the drive shaft OD of the threaded part (micrometer or vernier caliper). If >= 17.5 mm - clean threads and fit a new washer & nut with threadlock. If < 17.5 mm - the drive shaft must be replaced. (This work could take between 1 day to 2 weeks depending on dealer workload)...."
Quote from: lds1973 on 21 August 2013, 09:03:16 amI'd whip it off and remove sprocket, clean all with wire brush and refit with thread lock, torque to 80 and see how you get on. Or whilst its all off check the nut runs up the shaft. He's already said it didn't feel tight at 90Nm.
Quote from: darrsi on 21 August 2013, 10:17:28 amQuote from: lds1973 on 21 August 2013, 09:03:16 amI'd whip it off and remove sprocket, clean all with wire brush and refit with thread lock, torque to 80 and see how you get on. Or whilst its all off check the nut runs up the shaft. He's already said it didn't feel tight at 90Nm.Exactly. Something isn't right hence the need to inspect and clean. I wouldn't be riding around on possible cross threaded/ damaged thread etc etc. Would you?
Quote from: lds1973 on 21 August 2013, 12:33:24 pmQuote from: darrsi on 21 August 2013, 10:17:28 amQuote from: lds1973 on 21 August 2013, 09:03:16 amI'd whip it off and remove sprocket, clean all with wire brush and refit with thread lock, torque to 80 and see how you get on. Or whilst its all off check the nut runs up the shaft. He's already said it didn't feel tight at 90Nm.Exactly. Something isn't right hence the need to inspect and clean. I wouldn't be riding around on possible cross threaded/ damaged thread etc etc. Would you? Judging by the photo', the shaft thread looks more than ropey to me anyway.
Gotta agree with you Nick, and also a tad worrying the nut had to be done up so tightly as well.@freeware, i'm a big fan of copper grease, i use it a lot on my bike, but i'm surprised you used it on the front sprocket nut, i think i would rather prefer it seized on!