« previous next »
Pages: [1]   Go Down

Author Topic: Rear Hub Assembly  (Read 1961 times)

0 Members and 1 Guest are viewing this topic.

Offline jmelche2

  • 1974 CB750K
  • Enthusiast
  • **
  • Posts: 161
Rear Hub Assembly
« on: October 19, 2014, 04:50:10 PM »
1972 CB500 - While assembling the rear hub, I had a bit of difficulty installing the drive flange (the part with the studs pictured below).  I had to use a rubber mallet to install and I do not remember it coming apart with any amount of force.  Should it fit this tight?  I would like to figure this out before I move on.

Thanks, Jim
Logged

Nic

  • Guest
Re: Rear Hub Assembly
« Reply #1 on: October 19, 2014, 05:16:13 PM »
The best way to put it on is to fit the sprocket, put the wheel on the ground with hub facing up, align the hub, wriggle it in side to side then stand on each side of the sprocket and keep alternating your weight from left foot to right, it should go on pretty easy.
Logged

Offline jmelche2

  • 1974 CB750K
  • Enthusiast
  • **
  • Posts: 161
Re: Rear Hub Assembly
« Reply #2 on: October 19, 2014, 05:52:32 PM »
Thanks but as you can see, I already have it assembled - just a little concerned that it went together so tight.  Also, the spacer is flush with the sprocket cover.  Hmm, this does not seem right (see picture below).


Logged

Offline Jayelwin

  • Hot Shot
  • ***
  • Posts: 436
Re: Rear Hub Assembly
« Reply #3 on: October 19, 2014, 05:55:37 PM »
How do you get the hub to shine like that? Just curious.
Logged

Offline jmelche2

  • 1974 CB750K
  • Enthusiast
  • **
  • Posts: 161
Re: Rear Hub Assembly
« Reply #4 on: October 19, 2014, 06:07:46 PM »
It is ceramic coating.
Logged

Offline jmelche2

  • 1974 CB750K
  • Enthusiast
  • **
  • Posts: 161
Re: Rear Hub Assembly
« Reply #5 on: October 20, 2014, 10:18:38 AM »
Bump. Somebody help a brother out
Logged

Offline Bill/BentON Racing

  • Really Old Timer ...
  • *******
  • Posts: 6,725
  • Ex Honda Service Manager, Cert. Honda Tech - Racer
    • BentON Racing
Re: Rear Hub Assembly
« Reply #6 on: October 20, 2014, 02:21:56 PM »
It's going in rubber, so if no lube was used it will be tight, also can go in more than one way, sometimes pulling out, spin and try again, Bill. If its flush , same gap all around, you should be fine! New is also tighter fit.
Logged
BentON Racing Website
OEM Parts | Service | Custom Builds
BentON Racing Facebook
Over 35 years of experience working on vintage motorcycles, with a speciality in Honda SOHC/4 with a focus on the CB750 and other models as well from 1966 - 1985.
______________________________________
1993 HRC RS125 | 1984 NS400R | 1974 Honda CB750/836cc (Calendar Girl) | 1972 CB 500/550 Yoshi Kitted 590cc | 1965 Honda CB450 Black Bomber | 1972 Suzuki T350 | 1973 88cc | Z50/Falcons Pit Bike | 1967 CA100| 1974 CB350 (400F motor)...and more.
______________________________________
See our latest build 'Captain Marvel' CLICK HERE

Offline calj737

  • Really Old Timer ...
  • *******
  • Posts: 21,068
  • I refuse...
Re: Rear Hub Assembly
« Reply #7 on: October 20, 2014, 03:26:16 PM »
It is also very possible that your power coater got ceramic on the edges of the hub and sprocket carrier. Ceramic is thicker than standard powder coat (I have the exact coating on my hubs and other parts too) and it is sufficient to create friction for assembly.

Double check the edges carefully. If "contaminated" then carefully sand it down a wee bit with 320-400 grit until it's a smooth fit.
Logged
'74 550 Build http://forums.sohc4.net/index.php?topic=126401.0
'73 500 Build http://forums.sohc4.net/index.php?topic=132935.0

"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis

Offline jmelche2

  • 1974 CB750K
  • Enthusiast
  • **
  • Posts: 161
Re: Rear Hub Assembly
« Reply #8 on: October 20, 2014, 03:55:54 PM »
Thanks fellas!!!!!  I'm not sure who to give the prize to.  I did some sanding on the friction surfaces.  I also added some white grease to the rubber.  What made all the difference is when I added a little white grease to the leading edge of the drive flange, where it meets the hub o-ring.  On it went by hand - no hammering.  Yeah! 
Logged

Offline Jayelwin

  • Hot Shot
  • ***
  • Posts: 436
Re: Rear Hub Assembly
« Reply #9 on: October 21, 2014, 08:46:50 AM »

Quote from: jmelche2 on October 19, 2014, 06:07:46 PM
It is ceramic coating.

Damn, I was hoping I could get my hubs to look like that with just polish
Logged

Offline Muckinfuss

  • Hot Shot
  • ***
  • Posts: 380
  • "I plan to live forever.....or die trying."
Re: Rear Hub Assembly
« Reply #10 on: October 21, 2014, 01:49:09 PM »
they will.  but you have to give them a mother's treatment once or twice a year after.  did mine on an 8" buffer....no problemo.
Logged
1984 Sportster 1000cc XL
1988 Heritage Softail
1974 CB550
1989 Corvette

Offline Don R

  • My Sandcast is a
  • Really Old Timer ...
  • *******
  • Posts: 20,015
  • Saver of unloved motorcycles.
Re: Rear Hub Assembly
« Reply #11 on: October 21, 2014, 07:51:32 PM »
I just wet the rubbers with some silicone spray.
Logged
No matter how many times you paint over a shadow, it's still there.
 CEO at the no kill motorcycle shop.
 You don't need a weatherman to know which way the wind blows.
Pages: [1]   Go Up
« previous next »