Author Topic: 18.5 x 34 washer thickness  (Read 290 times)

Online sye

  • SOHC Expert
  • Posts: 251
    • View Profile
18.5 x 34 washer thickness
« on: July 29, 2018, 03:56:46 PM »
I'm getting together the bits that are missing for the eventual rebuild. Someone has put a brass shim under the swingarm rear axle nut instead of the 18.5 x 34mm washer, which is unavailable as a genuine part. M18 x 34 x 3mm thick washers are readily available and will do the job but does anyone know the original washer thickness please?

Thanks, Sye.
« Last Edit: July 29, 2018, 04:57:33 PM by sye »

Offline Seabeowner

  • SOHC Pro
  • Posts: 624
    • View Profile
Re: 18.5 x 34 washer thickness
« Reply #1 on: July 29, 2018, 05:08:33 PM »
Just took one off my 550. It's 4mm. My 500K0 is the same but, didn't want to disturb it. My other 500 has a non standard washer that looks about 1mm, so would be interested in getting at least a 3mm for that.
Phil
1971  CB500K0  Candy Jade Green
1973  CB500K1  Candy Ruby Red
1975  CB550F1   Shiny Orange
1978  CB550K     Excel Black

Offline Bryanj

  • SOHC Jedi
  • Posts: 6197
    • View Profile
Re: 18.5 x 34 washer thickness
« Reply #2 on: July 29, 2018, 05:19:07 PM »
As long as you do the nut up tight the actual thickness is not mechanically relevant

Offline Trigger

  • SOHC Jedi
  • Posts: 6897
  • Engines built on reputation, not advertising.
    • View Profile
Re: 18.5 x 34 washer thickness
« Reply #3 on: July 29, 2018, 06:48:22 PM »
Not sure about 18.5 x 34mm washer ! The OEM size is ID 14.30mm, OD 25.90 and 2mm thick  ;)

Be careful of honda sizes listed  :o

The washer for the swing arm is available 90526 268 000


OK, just seen the swingarm bit crossed out.
That was original a chrome washer. Can post you a S/S one if you require Sye
« Last Edit: July 29, 2018, 07:03:03 PM by Trigger »

Online sye

  • SOHC Expert
  • Posts: 251
    • View Profile
Re: 18.5 x 34 washer thickness
« Reply #4 on: July 29, 2018, 08:43:18 PM »
Thanks for your offer Graham but I have form A stainless M18 washers at 3mm thick with a 34mm o/d in my spares box. I will polish it up so it looks chrome and it should look fine.

Offline Seabeowner

  • SOHC Pro
  • Posts: 624
    • View Profile
Re: 18.5 x 34 washer thickness
« Reply #5 on: July 30, 2018, 08:47:31 AM »
As long as you do the nut up tight the actual thickness is not mechanically relevant
I know but my 1mm looks a bit weedy.
My other 500 has a non standard washer that looks about 1mm, so would be interested in getting at least a 3mm for that.
I would be interested in a better replacement for that if one is available please.
Phil
1971  CB500K0  Candy Jade Green
1973  CB500K1  Candy Ruby Red
1975  CB550F1   Shiny Orange
1978  CB550K     Excel Black

Offline Trigger

  • SOHC Jedi
  • Posts: 6897
  • Engines built on reputation, not advertising.
    • View Profile
Re: 18.5 x 34 washer thickness
« Reply #6 on: July 30, 2018, 11:29:06 AM »
The OEM chrome washer was 4mm thick, the S/S ones i have are only 2.60mm. If you want one PM me your address and i will pop one in the post  ;)

Offline Seabeowner

  • SOHC Pro
  • Posts: 624
    • View Profile
Re: 18.5 x 34 washer thickness
« Reply #7 on: July 30, 2018, 06:27:50 PM »
Cheers Trigger. It will look better than the one I have now. I have the 4mm on the other two. I'll stick an extra quid on the donations next round.
Phil
1971  CB500K0  Candy Jade Green
1973  CB500K1  Candy Ruby Red
1975  CB550F1   Shiny Orange
1978  CB550K     Excel Black

 

SimplePortal 2.3.5 © 2008-2012, SimplePortal