Topic: Strange rear hub issue - CB550

[strynboen]

if the retainer not are total inn..the vhole vheel can move to the brake plate side??

..i have the idea it vas the bearings and the senter tube(distance tube) vho made the posision..and hold it all korrekt placed..like on most smaller bikes..but then..vhy use it anyvay..Honda put it there ..not for fun..

[Scott S]

Who put the bearings in?

My old man did... he said they all seated nicely and from what I can tell they are both seated where they should be.

The dust seal behind the sprocket cover is worn right down too. Every spaced seems to be present. I looked at the other style brake cover and I don't think that mine has been mixed up. Bit of a mystery!

 Are you sure you're not holding #5 in those pics? We're talking about #12, which seems smaller than the spacer you have pictured.
 I know for a FACT that not having it will cause the exact symptoms you're describing.

[Stev-o]

I agree with Scott and would bet a little bit of money #12 part was not in place...

[754]

 The inner threaded retainer, that holds bearing in sprocket side of main hub.. I cant see it in the drawing ?
Am i just not seeing it.
When you guys say 12, do you mean 6 ?

[Deltarider]

#3 is the rear wheel bearing retainer, #6 is the COLLAR, REAR WHEEL SIDE in Honda speak. This 'SIDE' was added in later parts lists so Honda probably understood there was some misunderstanding. This collar sits loosely behind the sprocket plate. #12 sits more inwards and is the COLLAR B REAR AXLE DISTANCE. I agree both the exploded view and the namegiving is not very clear.

[754]

3 looks like it holds a bearing into 10
The hub appears threaded, yet I see no retainer or the 3rd bearing , WTF..
Now its getting confusing.

Should there not be 3 bearings and two threaded retainers coming in from sproket side, like on a 750? #12 is both a spacer and adaptor to the larger id sorocket carrier bearing.
To me it looks like drawing missed a few pieces.
 Be confusing to the OP.

[Deltarider]

The hub appears threaded, yet I see no retainer or the 3rd bearing , WTF..
Now its getting confusing.

It's because there's no 3rd bearing like the 750 has. Actually the CB500/550 hub design is poor. With the sprocket in place, it's quite useless to try to balance the rear wheel. On installing everybody forgets to place #6 before fitting the sprocket plate. After you've torqued the 4 nuts, you can remove them again when you find out you can not put the stepped collar #6 through the plate's hole. A few things to observe: the retainer has a reversed thread and does NOT necessarily have to lie flat against the hub.

[754]

So does 11 go against 12 ?
 Then it would flop over when you pull sprocket carrier off.

[Deltarider]

I'm having dinner right now so if you don't mind, all of you, go to p.50 and 51 of this parts list http://www.honda4fun.com/pdf_parts_list/pdf_spac500/CB500-76/CB500-76_3.pdf that has a better pic. BTW you all should consult the parts lists instead of looking at the bloody fiches that never tell you the full story.

[DrJones]

Who put the bearings in?

My old man did... he said they all seated nicely and from what I can tell they are both seated where they should be.

The dust seal behind the sprocket cover is worn right down too. Every spaced seems to be present. I looked at the other style brake cover and I don't think that mine has been mixed up. Bit of a mystery!

 Are you sure you're not holding #5 in those pics? We're talking about #12, which seems smaller than the spacer you have pictured.
 I know for a FACT that not having it will cause the exact symptoms you're describing.

Yeah, I think you're onto something here. The spacer that I have is definitely the outer one (#6). I don't have a way to remove the bearing right now but just feeling behind it, all I can feel is #11. No sign of a spacer behind the drive side bearing!

[754]

Ready to get the manual?
 I prefer the Clymer over the Haynes..

[DrJones]

Ready to get the manual?
 I prefer the Clymer over the Haynes..

I've got one!

[Scott S]

Who put the bearings in?

My old man did... he said they all seated nicely and from what I can tell they are both seated where they should be.

The dust seal behind the sprocket cover is worn right down too. Every spaced seems to be present. I looked at the other style brake cover and I don't think that mine has been mixed up. Bit of a mystery!

 Are you sure you're not holding #5 in those pics? We're talking about #12, which seems smaller than the spacer you have pictured.
 I know for a FACT that not having it will cause the exact symptoms you're describing.

Yeah, I think you're onto something here. The spacer that I have is definitely the outer one (#6). I don't have a way to remove the bearing right now but just feeling behind it, all I can feel is #11. No sign of a spacer behind the drive side bearing!

 Told ya!
 It's really easy for that spacer to get stuck in the old bearing and tossed out. There's a reason I know this....

[DrJones]

Who put the bearings in?

My old man did... he said they all seated nicely and from what I can tell they are both seated where they should be.

The dust seal behind the sprocket cover is worn right down too. Every spaced seems to be present. I looked at the other style brake cover and I don't think that mine has been mixed up. Bit of a mystery!

 Are you sure you're not holding #5 in those pics? We're talking about #12, which seems smaller than the spacer you have pictured.
 I know for a FACT that not having it will cause the exact symptoms you're describing.

Yeah, I think you're onto something here. The spacer that I have is definitely the outer one (#6). I don't have a way to remove the bearing right now but just feeling behind it, all I can feel is #11. No sign of a spacer behind the drive side bearing!

 Told ya!
 It's really easy for that spacer to get stuck in the old bearing and tossed out. There's a reason I know this....

Fairly certain that's what has happened.

Thanks for the help guys! We have an old 550 wheel kicking around to get parts from. Thank god, that spacer is pretty hard to find online.

[bryanj]

I find the 500/550 easier than the 750, the sprocket side bearing is pushed into the hole up to a shoulder and stopped from coming out by the threaded retainer, which is why it is imperative that the retainer is in all the way. The other side bearing is fixed by the internal spacer and has no shoulder to but against.

Sorry if replies are intermittent but I am in UK so on different clock

[Johnie]

So this goes all the way back to reply #3, aye?  When I took mine out is was froze to the axle. When I finally got it out I put it in the new bearing so I would not forget it. It was my first 550K and it was a learning experience with that spacer. Good lesson and glad you got it sorted out.

[DrJones]

So this goes all the way back to reply #3, aye?  When I took mine out is was froze to the axle. When I finally got it out I put it in the new bearing so I would not forget it. It was my first 550K and it was a learning experience with that spacer. Good lesson and glad you got it sorted out.

Yep, you were right! I didn't realized there were two spacers initially... oh well.

Looks like that spacer is unavailable everywhere. My friend is going to make one on his lathe for me.

[754]

20 mm ID step is likely 25 mm
Not hard to make..but you need measurements.. Good luck.
 

[calj737]

here you go -