Rear wheel not spinning?

helpimcrap · 11 Mar 2020 at 17:08

Hi all,
Bikes CBR 600FX, been sat in garage since last November.
Replaced tyre on rear wheel. However upon refitting it doesn't spin by hand when torqued up. Checked all spacers were in,all 3 bearings span by finger without notchiness. Fitted new cush rubbers but tried with old ones to see if they were an issue - no, no difference.
With nut undone it spins fine - rear brake was dragging a little but freed it off and no issue. Been spinning it without the chain on as thought that might be it but no.

As soon as I tighten axle bolt up it becomes difficult to spin.

Suggestions? Thinking wheel bearings, cush bearing buy they all seem ok.

helpimcrap · 11 Mar 2020 at 19:38

Thomas. PLease. said:
Brake pads/caliper alignment?

It's a thought I'll double check but I pushed the pads back in the caliper and there is no other way to align the caliper. And the wheel alignment lines up both sides.

A curious but annoying problem.

helpimcrap · 13 Mar 2020 at 22:59

mattup said:
Are the spacers on the correct sides? Is the wheel central to the swinging arm?

Matt

Spacers are correct. Wheel spins fine until I tighten it up. I'm not tightening it anywhere near the torque setting it should be.

Looking like seized wheel bearings? It's been sitting unused for a few months.

helpimcrap · 14 Mar 2020 at 11:51

Regreased everything, still same.

Bike wheel is slightly to the right because obviously the sprocket housing is bigger then the brake caliper but it all fits in snug.

Am I overthinking it? Should it spin?

helpimcrap · 13 Apr 2020 at 20:44

Until I tighten it up it spins.

I think i'm missing a spacer that goes between the hub and the wheel. The issue I have with that is there in a spacer in there however it is wedged in the back of the sprocket bearing so i'm unsure if that should be there or if it has somehow become stuck.

If it isn't that it is either the sprocket or wheel bearings. They spin fine with no notchiness when I spin with my finger, however the bike was laid up for a few months so it is plausible they've just failed due to non-use.

helpimcrap · 14 Apr 2020 at 10:10

mattup said:
Dude, you have put the spacers in the wrong side. If it was fine before you took it apart, then you have not put it back as it was, simples!

I didn't spin the wheel before I took it apart. Spacers are in as should be. #4 the shouldered spacer is on the correct side.

Tom e - spacer is part 8 on there. I can find a rim piece inside the back of the sprocket carrier bearing (which doesn't look like it is on the photo) so not sure if it wedged in. Either was I need a new sprocket bearing and spacer if I have to remove it because it is wedged tight.

https://www.fowlersparts.co.uk/parts/4833561/cbr600f4x-1999-cm/rear-wheel-1

helpimcrap · 15 Apr 2020 at 14:11

tom_e said:
Can you get a picture? I'm genuinely curious now. Distracts me from doing work

I can but no way to host as this site doesn't support images. Basically it spins okish apart from rubbing on rear pads a little but until up and running that's a minor thing. The chain is knackered and obviously that's going to hold it back a little too.

Basically if I leave the axle undone it'll spin a turn or so. If I tighten it up it won't move. I can spin the sprocket carrier on the finger but like I said it's possibly got the spacer wedged in the back which could be causing the issue.
Or it could be the bearings are broken under load I.E. Tightening them up.

helpimcrap · 23 Apr 2020 at 13:03

Dogbreath said:
The spacer that sits between the wheel hub and sprocket carrier looks like this with the smaller diameter half sitting inside the inner race of the bearing. It should be very obvious if it's in place or not. As I mentioned, it's very common for these to drop out when the sprocket carrier is removed as they are very often not a tight press fit into the sprocket carrier bearing.

I figured that. In which case it's the bearings. The bit you say falls out is actually wedged in the back of the bearing by the looks of it, hence me asking what does it look like etc. Just received a new sprocket bearing and spacer from David Silver Spares. Got some wheel bearings from an auction site.
That's my next days off sorted.

helpimcrap · 30 Apr 2020 at 11:32

Changed the wheel bearings. Exactly the same, so maybe after all this faff it's just me thinking it should spin better. Ah well lol.