Author Topic: Sliding plate behind clutch  (Read 1088 times)

Offline Russ

  • A's Best Friend
  • ***
  • Join Date: Aug 2009
  • Posts: 214
  • Karma: 1
Sliding plate behind clutch
« on: 28.07. 2013 08:41 »
Guys I apologise for this question in advance.
I have been reading your posts regarding the sliding plate behind the clutch and my question is -  should my 51 A10 Gold Flash have one?
Russ
1951 A10 Plunger.
Australia

Online Brian

  • Wise & Enlightened
  • *
  • Join Date: May 2007
  • Posts: 1708
  • Karma: 41
  • Mt Gambier, South Australia.
Re: Sliding plate behind clutch
« Reply #1 on: 28.07. 2013 09:19 »
No.

Online muskrat

  • Global Moderator
  • Wise & Enlightened
  • **
  • Join Date: Jul 2009
  • Posts: 8253
  • Karma: 106
  • Lake Conjola NSW Oz
    • Shoalhaven Classic Motorcycle Club Inc
Re: Sliding plate behind clutch
« Reply #2 on: 28.07. 2013 09:38 »
G'day Russ. Your g/box is fixed to the motor, the inner primary has a small sealed hole for the mainshaft. The swing arms gearbox moves so needs a bigger hole and the sliding plate seals it.
Cheers
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, 88 FXST .
Australia
Muskys Plunger A7

Offline Russ

  • A's Best Friend
  • ***
  • Join Date: Aug 2009
  • Posts: 214
  • Karma: 1
Re: Sliding plate behind clutch
« Reply #3 on: 28.07. 2013 10:09 »
Thanks Muskrat & Brian,
I thought they were fitted to the Swing-arms and now I know why.
Russ
1951 A10 Plunger.
Australia

Online trevinoz

  • Newcastle, N.S.W. Australia.
  • Wise & Enlightened
  • *
  • Join Date: Jul 2006
  • Posts: 2901
  • Karma: 67
Re: Sliding plate behind clutch
« Reply #4 on: 28.07. 2013 22:37 »
Russ,
               There should be two plates riveted to your chaincase, one each side, with some sort of fibrous seal sandwiched in.
Drill out the rivets and fit a modern lip seal and rivet the plates back on.

Trev.

Offline Russ

  • A's Best Friend
  • ***
  • Join Date: Aug 2009
  • Posts: 214
  • Karma: 1
Re: Sliding plate behind clutch
« Reply #5 on: 29.07. 2013 06:45 »
Trev
Yes I have the 2 plates and seal in a set of crankcases which don't look too good. Can you elaborate on what a new modern Lip Seal is and what type of riverts would I need for this application.
Russ
1951 A10 Plunger.
Australia

Online Greybeard

  • Jack of all trades; master of none.
  • Wise & Enlightened
  • *
  • Join Date: Feb 2011
  • Posts: 6165
  • Karma: 35
Re: Sliding plate behind clutch
« Reply #6 on: 29.07. 2013 08:33 »
I got a seal from Draganfly and not trusting my riveting skills used small screws with Nylock nuts. Warning: there is not much room between the clutch bearing sleeve and the seal so the screw heads need to go on the clutch side. The chaincase is weak around the rivet holes, (DAMHIK) so be careful!

Online trevinoz

  • Newcastle, N.S.W. Australia.
  • Wise & Enlightened
  • *
  • Join Date: Jul 2006
  • Posts: 2901
  • Karma: 67
Re: Sliding plate behind clutch
« Reply #7 on: 30.07. 2013 22:44 »
Russ,
           I don't know the part number for the seal, I'll check the shed to see if I have one on the shelf.
Just measure the shaft diameter, the housing diameter and thickness and see your friendly bearing bloke.
I used pop rivets to reassemble. I don't think that they will leak but if you are worried about leakage try to find blind rivets. Probably not worth the effort for three, though. A dab of silicon should do the trick.

Trev.

Online Brian

  • Wise & Enlightened
  • *
  • Join Date: May 2007
  • Posts: 1708
  • Karma: 41
  • Mt Gambier, South Australia.
Re: Sliding plate behind clutch
« Reply #8 on: 31.07. 2013 00:08 »
If memory serves me correctly which it most likely doesnt, I think the shaft is 3/4" so 19mm for the inner diameter and the outer is either 32 or 35mm.   

Online trevinoz

  • Newcastle, N.S.W. Australia.
  • Wise & Enlightened
  • *
  • Join Date: Jul 2006
  • Posts: 2901
  • Karma: 67
Re: Sliding plate behind clutch
« Reply #9 on: 01.08. 2013 00:10 »
Russ,
              The seal which I use is marked :- NOK  391-2883-048
It measures 3/4" x 1 3/8" x 5/16"

Trev.

Offline Russ

  • A's Best Friend
  • ***
  • Join Date: Aug 2009
  • Posts: 214
  • Karma: 1
Re: Sliding plate behind clutch
« Reply #10 on: 01.08. 2013 03:30 »
Thanks Trev I'll chase it up.
Russ.
1951 A10 Plunger.
Australia