Topic: How do you get the sprocket hub

[70CB750]

off the rear wheel, please?  Does the bearing retainer hold it in place?

Attaching picture - this is the part I am trying to get off, decided to ask before I mess it up

[Toxic]

search "rear wheel bearing removal"
http://forums.sohc4.net/index.php?action=search2

Lots of info, including how to make your own tool to do the job

[70CB750]

Thanks!

[70CB750]

That part should just lift off of the wheel, correct?  I may need to soak it with some atf/aceton mix if that's the case.


And the bearing retainer - since it is on the left side of the wheel - has left thread?

[rklystron]

This thread may help with your removal. In short the bearing retainer has been staked to prevent the retainer from loosing and spinning out. You need to take a small drill just a little bigger that the holes you see from the retainer to the hub and drill out the stakes. Just drill to the depth the stakes are now. If you do not do this you will destroy the threads that hold the assembly in place. What I have done is use 2 center punches one on each side of the retainer and then use a bar between the 2 center punches and turn it out. It will be a normal thread CCW to remove. You may have to use some penetrate to help with any corrosion that may have built up over the years. Do not attempt to spin the retainer by putting the center punch in the holes and smacking it with a hammer. If you do you will deform the Aluminum and really be in trouble. You may once off decide to replace the seal as well.

[MCRider]

That part should just lift off of the wheel, correct?  I may need to soak it with some atf/aceton mix if that's the case.


And the bearing retainer - since it is on the left side of the wheel - has left thread?

Your picture implies its already off the wheel. If not, yes it just lifts out of the dampers. Often stuck from friction.

The bearing retainers on a CB750 are all standard rt hand threads. Righty tighty, lefty loosey. Different than the 500/550.

[70CB750]

Thank you, guys.

The picture is just generic to ilustrate what I mean, the wheel is still assembled.  I was able - does not happen often  - to walk away from it without messing anything up.  Mostly because it's aluminum, does not take much to screw it up.

[SOHC Digger]

Yes, the sprocket carrier should just lift out of the wheel.  There is no retainer or anything like that.  There are four rubber isolaters behind it that may be giving you trouble.

[MCRider]

Thank you, guys.

The picture is just generic to ilustrate what I mean, the wheel is still assembled.  I was able - does not happen often  - to walk away from it without messing anything up.  Mostly because it's aluminum, does not take much to screw it up.

Yeah. Some will try to pry it out from the sprocket side. This will result in major gouges in the rim of the hub. been a while for me, but i seem to remember you can push on it from the brake side thru holes in the hub. Seems I took some dowels and beat on them from the brake side to push the sprocket carrier out. Its totally friction with the dampeners holding it in.

Conversly you'll have trouble getting it back in, and a lube must be used. Soapy water, armorall or such.