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Wyberton John |
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Wyberton John Nova Slayer
Joined: 27 Feb 2019 Karma :
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Posted: 19:15 - 15 May 2019 Post subject: Might be in the poop... |
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but hope I can save it!
Bike's due in for big service in a week (£520+) but I had already changed the oil & filter just about 3 weeks ago - was a late decision to get the service done - and had ordered a new chain & sprockets.
Decided to fit them this evening.
First thing to do was slacken off the rear caliper torque arm bolt - and it sheared straight off! Bugger.
https://i.postimg.cc/T2pBpCr3/brakesheer1.jpg
After the initial shock and the thought of my large servicing bill now hitting the ceiling (I could easily ride it there as is), I realised I may be able to remove the offending bolt thread without too much bovva.
Luckily, it's fastened by going through the torque arm and has a nut at the back (also well rusted). I can't push it through in situ due to the proximity of the disc:
https://i.postimg.cc/V5PbBJSL/brakesheer2.jpg
but I reckon when I remove the spindle (or rear axle if ya like) the caliper should swing down and allow me the access I need, to remove the ramaining bits and get on with the operation.
There is no thread in the actual arm, of course. May still be able to unscrew it, even it's stuck, using the rusted-on nut.
Otherwise, I can hopefully pull the wheel off and do the same, then get on with doing the chain & sprocket.
Just warming you up for when any issues arrive....
PS - yes, I'll be cleaning up those other fasteners, having just done it all a few weeks back, and hopefully replace the old rusty ones with a new set. ____________________ Fazer Thou Gen 1 |
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leolion |
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leolion Scooby Slapper
Joined: 14 Feb 2019 Karma :
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Ste |
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Ste Not Work Safe
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leolion |
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leolion Scooby Slapper
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stinkwheel |
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stinkwheel Bovine Proctologist
Joined: 12 Jul 2004 Karma :
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Posted: 19:59 - 15 May 2019 Post subject: |
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Yes, take the wheel off, wind the broken stump out with the nut.
Heat will help. It's a steel bolt in alloy, alloy expands more rapidly than steel when heated. If you get it hot enough to vapourise a drop of oil, it'll be loose. If it's super stuck and the nut winds off, stick a couple of washers under it and tighten it down again, this should either pull the stub through or break it loose.
Remove the calliper before applying heat. Consider taking the whole torque-arm and calliper bracket to the bench and doing it in the vice, remember torque arms attach at both ends. ____________________ “Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles. |
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BTTD |
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BTTD World Chat Champion
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Wyberton John |
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Wyberton John Nova Slayer
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Nobby the Bastard |
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Nobby the Bastard Harley Gaydar
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Hong Kong Phooey |
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Hong Kong Phooey World Chat Champion
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MCN |
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MCN Super Spammer
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bugeye_bob |
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bugeye_bob World Chat Champion
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Robby |
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Robby Dirty Old Man
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Riejufixing |
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Riejufixing World Chat Champion
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Riejufixing |
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Riejufixing World Chat Champion
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Wyberton John |
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Wyberton John Nova Slayer
Joined: 27 Feb 2019 Karma :
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Posted: 10:05 - 16 May 2019 Post subject: |
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Thanks again for your further suggestions - here's what I've done this morning...
I attempted to remove the front nut & bolt, but it was very similar to the back one - and I didn't want that shearing off, too, so I applied a lot of gentle force, whilst keeping an eye on the nut to make sure that when the bolt started moving, the nut did, too - and it did! Eventually.
So I knew that there would be some movement in the torque arm and with this knowledge, proceeded to remove the wheel - and sure enough, the torque arm lowered sufficiently to remove the wheel quite easily...
https://i.postimg.cc/d3w4nrqH/sprock01.jpg
I left it like that for now. I did apply some lube to the front nut & bolt, as there is a chance I may be able to get that off in one piece.
I'll try that tomorrow (never had much success with penetrating oil in the past, but it has worked once or twice, so worth a go). Once I have the torque arm off, I'll have a go at the rear one with heat.
I'm kicking myself, though, as it was only after I had removed everything that I realised I didn't have the right size socket for the front sprocket nut
Well... I am getting on a bit and I always forget something....
New one should be here tomorrow.
Anyway, I never really know how to judge the cush drive. I only ever had one that was really obviously in need of replacement.
This looks fine to me:
https://i.postimg.cc/jjngjRgX/sprock02.jpg
https://i.postimg.cc/HxGScFFC/sprock03.jpg
the sprocket doesn't seem too bad, either - but I have a new one I'll be fitting:
https://i.postimg.cc/85hZhtVf/sprock04.jpg
https://i.postimg.cc/2yGTtyyz/sprock05.jpg
though I hope to keep it a bit cleaner.
I'll report back once I've done some more - due to my state of health, I can't do as much in a day as I used to.
Cheers ____________________ Fazer Thou Gen 1 |
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Hong Kong Phooey |
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Hong Kong Phooey World Chat Champion
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Wyberton John |
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Wyberton John Nova Slayer
Joined: 27 Feb 2019 Karma :
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Posted: 21:04 - 17 May 2019 Post subject: |
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Thought I'd get on with getting that front sprocket off to start with today.
It was a bugger!
I tried to use a method I'd seen on a YT video recommended here, to get the front sprocket nut loosened - it was very tight (don't think the previous owner bothered with a torque wrench or being careful - seems he overtightened every bolt I have removed from the thing).
I put a screwdriver through the chain, having looped it around the refitted rear axle (over a thick cloth to prevent any scoring) and then wrapped a thick cable tie tight around the chain, to hold it together in front of the screwdriver.
Well, I was pushing on the T-bar, with a metal pipe extension, when it suddenly gave and I headbutted the bar end and split my forehead open and gave myself concussion!
Oops
Later, after being patched up and seen to, I found that the cable tie had split - not only that, my screwdriver had a 45° bend to it!
So I reset the chain, put a thick allen key through it this time, and used a bench vice (yup!) to clamp the chain together and this time it worked perfectly. Still took a lot of oomph - but at least it's off now.
I'm wondering if I should have bothered, though. It's visible in the previous pics that the rear sprocket doesn't have much wear and the chain stretch is minimal - well under maximum, and the front sprocket, whilst showing signs of wear, isn't that bad, either:
https://i.postimg.cc/0jCPgPRk/frtsprk.jpg
I was hoping for that "new bike" feel usually experienced after fitting new chain & sprockets, but I don't think I will be, somehow. Not with this little wear.
I checked the mileage and although I've had the bike over 4 years - so the chains been on it at least that long - I've only done 2,000 miles on it. That's due to having some nasty health issues the last couple of years. I've done more miles this year already than I did in the previous 2.
Anyway - for those recommending I "remove the front bolt and work on the sheared one on the workbench" - I don't know how I will do that without disconnecting the rear caliper from the brake line?
So I'll have to do it on the bike. I'm getting on with that tomorrow. If I can keep my balance... ____________________ Fazer Thou Gen 1 |
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Riejufixing |
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Riejufixing World Chat Champion
Joined: 24 Jun 2018 Karma :
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Wyberton John |
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Wyberton John Nova Slayer
Joined: 27 Feb 2019 Karma :
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Posted: 21:38 - 17 May 2019 Post subject: |
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No, I could undo the caliper bolts, though - that would allow me to take the thing off, I s'pose. That's if that twat hasn't all but welded the things on!
btw when I said I put the bench vice on the chain, I obviously (at least to me) had removed it from the bench! I'm not quite strong enough to lift my bike onto the workbench!! ____________________ Fazer Thou Gen 1 |
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Pete. |
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Pete. Super Spammer
Joined: 22 Aug 2006 Karma :
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Posted: 21:55 - 17 May 2019 Post subject: |
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Nothing wrong with those sprockets and if you want to judge the state of the chain measure over 20 pins. Oh, and be sure to un-do the front sprocket BEFORE you remove the wheel next time, just stuff a piece of wood or metal through the wheel so it can't turn. ____________________ a.k.a 'Geri'
132.9mph off and walked away. Gear is good, gear is good, gear is very very good |
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Pigeon |
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Pigeon World Chat Champion
Joined: 27 Sep 2012 Karma :
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Posted: 00:55 - 18 May 2019 Post subject: |
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Removing front sprocket nut, I like the method of sitting on the bike with front and rear brake engaged and using a 2ft long breaker bar to reach down.
There are some advantages to being a fat git
......does require wheels and chain to be attached though. |
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Wyberton John |
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Wyberton John Nova Slayer
Joined: 27 Feb 2019 Karma :
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Posted: 10:23 - 18 May 2019 Post subject: |
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I wouldn't say there was nothing wrong with them - there is definitely wear on the front one - several knuckles are worn away quite a bit.
Could have done a couple more years, though. I'm not bothered - bearing in mind these have been on the bike over 4 years, having new ones on gives me peace of mind that all is well, gives me more years/miles before they need doing, helps me to get to know the bike better (eg shearing and overtightened bolts) and is a plus point if and when it comes to selling.
More positives than negatives, so I'm happy. Mind you, I am still having balance issues and have knocked over or dropped a number of items this morning!
____________________ Fazer Thou Gen 1 |
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Easy-X |
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Easy-X Super Spammer
Joined: 08 Mar 2019 Karma :
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stinkwheel |
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stinkwheel Bovine Proctologist
Joined: 12 Jul 2004 Karma :
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Posted: 11:27 - 18 May 2019 Post subject: |
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Front sprocket nuts are a piece of piss when you have an air impact wrench.
If you clean up the old sprocket and lay it directly on top of the new ones, I suspect you'll find more wear than you initially thought, especially regarding hooking of teeth. ____________________ “Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles. |
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Wyberton John |
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Wyberton John Nova Slayer
Joined: 27 Feb 2019 Karma :
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Posted: 19:33 - 19 May 2019 Post subject: |
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Some progress and a further kick in the nuts today - recorded the sesh:
https://youtu.be/9rIz2cIWu8w
Drilling it tomorrow and hopefully that will be it, sorted. Spent the rest of the day cleaning up all the parts.
Tip: Don't use Cillit Bang Degreaser for your bike degreasing needs. For shiney metal it's fine - for anyhting else it's completely shite.
Took me over an hour just to do the sprocket cover. ____________________ Fazer Thou Gen 1 |
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Old Thread Alert!
The last post was made 5 years, 21 days ago. Instead of replying here, would creating a new thread be more useful? |
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