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Message started by jabman on 01/25/10 at 06:40:31

Title: Rear wheel bearing problem?
Post by jabman on 01/25/10 at 06:40:31

Hi all,

ive had a problem for a while with a clicking noise coming from the rear of my bike. ive had problems with the belt squeaking but ive got the tension and alignment sorted so its stopped squeaking now. But im still left with a rhythmic clicking noise click..click.....................click..click
my only guess is a bad rear wheel bearing or pulley bearing so i think i will get a kit with the 2 small bearings, larger pulley bearing and dust seal. :-[

what do you guys think. ive made 1 stupid mistake today aka over filled the oil and couldn't figure out why it took 6 attempts to start

Title: Re: Rear wheel bearing problem?
Post by Reelthing on 01/25/10 at 07:18:10

One issue than can do that is if the nut that holds the front pulley is not tight - it lets it rattle around on the output shaft - It's fairly easy to check.

I have an older post around here some place with pictures as to what will happen if this is ignored - several folks have found that nut to be little more than hand tight and it should around 90lbs on it if I remember correct

Title: Re: Rear wheel bearing problem?
Post by Reelthing on 01/25/10 at 07:23:40

and look at the belt really close - it is possible for a rock or other trash to punch through the belt and stay put inbetween the teeth

Title: Re: Rear wheel bearing problem?
Post by babyhog on 01/25/10 at 07:36:56

does the rhythm of the click change as the speed of the bike changes?

Title: Re: Rear wheel bearing problem?
Post by jabman on 01/25/10 at 07:40:07

yer ive pulled one stone chip out already :o

Title: Re: Rear wheel bearing problem?
Post by jabman on 01/25/10 at 07:56:14

im sure its louder when im sitting on it and rolling it

Title: Re: Rear wheel bearing problem?
Post by justin_o_guy2 on 01/25/10 at 10:37:14

If the front pulley isnt loose, Id get the rear off the ground & spin the wheel by hand & see if theres a noise. Rolling on cement is pretty quiet, too. Got a sidewalk or garage floor? Maybe you could just roll it in Neutral & get your noise to show up. I kinda doubt its bearings. How many smiles on the bike? Ive seen some high smileage bikes & no reports of wheel bearings going out.

Title: Re: Rear wheel bearing problem?
Post by jabman on 01/25/10 at 10:53:26

yep ive tightened up the pulley bolts. And I still get the noise even on a smooth driveway. its only got 12k on it (1993) and like you said i haven't herd of anyone's bearings going. There is no any play in the wheel either. the bearing set is £16/$25, not very expensive. but it would waste a lot of time if it doesn't do anything :-/

Title: Re: Rear wheel bearing problem?
Post by justin_o_guy2 on 01/25/10 at 11:21:26

Yea, but if it allows you to remove one of the "It could be this" lines from the list, maybe its worth it. Besides, you may stumble across the problem while youre in there. If you dont want to drop the $$$, maybe you could pull the rear wheel & inspect everything & IF you need parts, order them. Is that too much down time for you? Hey! Can you get the bearings & then go into it, & if you dont need them, return them?

Title: Re: Rear wheel bearing problem?
Post by verslagen1 on 01/25/10 at 11:28:41

I picked up an '88 and the head bearing was really stiff causing me to wobble all over the place.
Finally took it apart, buffed the bearing races which were pitted and relubed. Fine now. Just goes to show you that any bearing can go bad. Just depends on what gets thrown in there. If no maitenance is ever done to it, you'll never know.

Title: Re: Rear wheel bearing problem?
Post by Phelonius on 01/25/10 at 11:43:14

There are three sets of bearings in the rear wheel assembly
Two in the wheel hub and one in the sprocket hub.
Grab onto the sprocket and try to wiggle it sideways with one hand at the back of it and one at the front.
The sprocket bearing is the one most likely of the three to go bad because of the belt tension trying to make it tilt.
you do not even have to get the wheel off the ground to do this.

phelonius

Title: Re: Rear wheel bearing problem?
Post by Phelonius on 01/25/10 at 11:43:32

Title: Re: Rear wheel bearing problem?
Post by jabman on 01/25/10 at 11:54:22

the rear belt pulley does wiggle when you pull on it yes. come to think of it the previous owner did have the belt very tight as well. this kit states that it does have a rear sprocket bearing, you can buy just the sprocket bearing for £4/$6.50? but it would be a bit of a gamble. its my only working bike at the mo. the 2 stroke dirt bike is getting a top end rebuild, grrrrr dam 2 strokes. >:(

Title: Re: Rear wheel bearing problem?
Post by Reelthing on 01/25/10 at 12:06:34

2922212E222D430 wrote:

yep ive tightened up the pulley bolts.

you've tighten the front one? - there's only one a 32mm - just now did it again on the '95.

Title: Re: Rear wheel bearing problem?
Post by jabman on 01/25/10 at 12:20:53

yep thats the one i had to get someone to hold the rear brake to keep the thing from moving. And the rear ones aswell

Title: Re: Rear wheel bearing problem?
Post by Reelthing on 01/25/10 at 12:34:53

sounds like it's time to get that baby up and spin that rear tire looking anything a miss - likely pull it apart - give you a chance to check the brake shoes and feel of the bearing and lube the axle shaft - could be the bearings I reckon or something going on with the rubber mounts

Title: Re: Rear wheel bearing problem?
Post by jabman on 01/25/10 at 12:51:33

its lookin that way if i was to slacken the belt tension all the way off and then re tighten the axle so there is zero belt pressure on the pulley if it still clicks would this eliminate the pulley bearing????? :-?

Title: Re: Rear wheel bearing problem?
Post by Reelthing on 01/25/10 at 14:17:23

all the bearings are on the same axle shaft so doubt if any tension would matter as to which one is clicking if that is the problem

Title: Re: Rear wheel bearing problem?
Post by jabman on 01/26/10 at 00:07:59

ill look in the manual but does anyone know if a 'special' tool is needed.

Title: Re: Rear wheel bearing problem?
Post by justin_o_guy2 on 01/26/10 at 10:13:29

You'll be wishing for a chest mounted 3rd arm when you go back together, but itll go & no special tools needed.

Title: Re: Rear wheel bearing problem?
Post by jabman on 01/26/10 at 10:47:18

ha ill get a friend to help then :)

Title: Re: Rear wheel bearing problem?
Post by justin_o_guy2 on 01/26/10 at 11:44:07

The hassle is getting the brake arm slot & the swingarm rail lined up as the brake assy slips into the hub & the axle holes line up. Its not real hard, just takes some time to figure out what to hold & how to hold it. One of those "Hold your mouth just right" things. But, if you have a friend who will be there & help, then you oughta do it that way, just to make it more fun.

Title: Re: Rear wheel bearing problem?
Post by dasch on 01/26/10 at 12:25:09

U sure it's not just a small stone or a piece of glass stuck in your tire?? It takes a REALLY messed up bearing to hear it click click when you ride. Dangerously messed up.

Title: Re: Rear wheel bearing problem?
Post by jabman on 01/26/10 at 12:42:09

yer thats why im tryin to do somethin about it dont they cause a locked wheel if they collapse on yer. on my old pedal bike, if i clipped a kerb or something with a pedal, i would hear an identical sound to this. a busted bearing which could only be cured by buying a new set of pedals.

Title: Re: Rear wheel bearing problem?
Post by dasch on 01/26/10 at 13:37:21

Eventually they will lock the wheel. Sooner or later. Nevertheless, screw hypothetical stuff, if nothing is stuck in your tire - change them ASAP. On those things, if there's any doubt - there's no doubt.

Title: Re: Rear wheel bearing problem?
Post by dasch on 01/26/10 at 13:40:54

Oh - if you've never done it - say it. It is easy to mess the bearing seat up if ur a rookie. Takes a special tool or a handy trick to get the first one out. Second one is easy.

Title: Re: Rear wheel bearing problem?
Post by JohnBoy on 02/20/10 at 16:23:29

I had what I took to be bearing noise. I purchased replacement bearings online, but before installing them I tried a spray can of GUNK silicone lube. The rude noises went away within a mile. I will swap the bearings when I replace the rear skin next summer.

Title: Re: Rear wheel bearing problem?
Post by jabman on 02/21/10 at 00:04:20

it was some loose spokes after all well i guess i have gained a new skill in changing wheel bearings