|
|
Post by richard on Sept 14, 2021 17:50:28 GMT
hello
whilst out and about today, i am hearing a squeaking sound [ similar to standing on a mouse ] when i change gear, but also when rolling on and off the throttle in gear [ mainly at slow speeds ]
i haven't touched anything, so the noise has just started today..i have new clutch springs and plates to go in, but was wondering what it could be before i replace the clutch plates and springs ?
thinking clutch bearing ?
thanks richard
|
|
|
|
Post by richard on Oct 2, 2021 16:39:55 GMT
hello i am not one from leaving a thread unfinished..so i think i may have located the annoying squeak.. at first glance it appeared to be clutch related, but on replacing the plates, springs, cable and lifter bearing..same issue.. until today..i was doing the usual routine maintenance, one of which being the oiling of the drive chain, and low and behold, when i put the bike in gear and let the clutch out to spin the rear wheel, instant squeaking ensued, so, whipped the rear wheel out, removed the sprocket, and the bush drive rubbers are...well..past there best..in fact quite a bit of wear..
the actual squeak was a result of the sprocket movement on the internal surface, as the rubbers were letting the sprocket move quite a bit on take up, so a smear of grease has cured it for now, but will have to sort the rubbers out sooner rather than later, to stop the aforementioned movement..
oh well more money to spend on giro day  |
|
|
|
Post by buster on Oct 2, 2021 18:15:46 GMT
quick temporary bodge to put you on until you can get new rubbers, if they are intact you could build them up a bit by wrapping insulation tape round them, its not a perfect solution but its a trick I'v used in the past
|
|
|
|
Post by richard on Oct 2, 2021 18:45:09 GMT
quick temporary bodge to put you on until you can get new rubbers, if they are intact you could build them up a bit by wrapping insulation tape round them, its not a perfect solution but its a trick I'v used in the past hello
yes, i could have packed it out a tad with bits of rubber etc, i was quite surprised at the various prices, £60 ish for a set of genuine ones from silvers, a similar price of cmsnl [ with the postage ] wemoto after-market ones £25 inc postage..and fleabay about £15 ish
if i had the money to spare genuine ones would be my preferred option...
|
|
|
|
Post by buster on Oct 2, 2021 19:23:14 GMT
in theory it shouldnt make too much difference, so long as the pattern ones are made of a suitable compound (and assuming they've got the mould right) they should be fine largely because theres no way to stress relieve them (its often how pattern bushes are kept down to a price)
|
|
|
|
Post by johnjones on Oct 2, 2021 19:32:43 GMT
I use rhomboids of rubber from an old inner tube.
How are the drive pins and alloy tapered blocks.
How is the sprocket bush and the iron spigot it rotates slightly on.
The rubber cush blocks do not like mineral grease...
I assume the large washer is ok as well as the large circlip and it's groove...
|
|
|
|
Post by richard on Oct 3, 2021 3:46:27 GMT
I use rhomboids of rubber from an old inner tube. How are the drive pins and alloy tapered blocks. How is the sprocket bush and the iron spigot it rotates slightly on. The rubber cush blocks do not like mineral grease... I assume the large washer is ok as well as the large circlip and it's groove... hello
yes everything looked fine, aside from the cush rubbers, but the grease wasn't applied to anything other than the inner surface of the sprocket, where on engaging drive it was moving, and the squeak was the result of metal on metal as the sprocket moved
i had intended to take a couple of pictures, but it wasn't a particularly good day weather wise, and it started to rain just as i was gathering my tools up..
|
|
|
|
Post by johnjones on Oct 3, 2021 8:07:56 GMT
Check your manual, there is a collar pressed into the sprocket, the collar is a good rotating fit over the wheel spigot...
Some sprockets come with the collar, some have the collar built into the sprocket, the collar is a replacement part.
I have seen some rusted solid onto the spigot and some that are very worn, and the spigot, resulting in lots of play and sprocket movement, enough to cause chain issues.
I have had to shim one to make it useable...
|
|
|
|
Post by richard on Oct 3, 2021 14:40:51 GMT
Check your manual, there is a collar pressed into the sprocket, the collar is a good rotating fit over the wheel spigot... Some sprockets come with the collar, some have the collar built into the sprocket, the collar is a replacement part. I have seen some rusted solid onto the spigot and some that are very worn, and the spigot, resulting in lots of play and sprocket movement, enough to cause chain issues. I have had to shim one to make it useable... hello
the sprocket fitted to the bike has the collar pressed into it, but i couldn't see anywhere that lists a replacement collar ?
the manual shows a picture of the sprocket collar fitted to the sprocket [ page 100 ] which is the same as mine
|
|
