Author Topic: SRM Clutch Plates Sticking  (Read 635 times)

Offline Terryb

  • Beezerban
  • A's Good Friend
  • ***
  • Join Date: Feb 2014
  • Posts: 145
  • Karma: 1
SRM Clutch Plates Sticking
« on: 22.10. 2022 19:30 »
Just installed a 4 spring SRM clutch in my 1955 A7SS and I am finding that the clutch plates will not release. The plates both driven and plain are a tight fit. I have assembled the clutch with a very light coating of oil and removed any burrs from the metal plates. But when operating the clutch it's permanently dragging and not releasing, regardless of adjustment. I'm thinking that the plates, especially the plain need work done on them to make them a more sloppier fit. Anybody had the same experience?

Offline Chris A10

  • Moving Up
  • **
  • Join Date: May 2021
  • Posts: 28
  • Karma: 0
Re: SRM Clutch Plates Sticking
« Reply #1 on: 22.10. 2022 20:48 »
Why  not contact SRM ?
The Netherlands 61GF

Offline scotty

  • Resident Legend
  • *****
  • Join Date: Aug 2008
  • Posts: 569
  • Karma: 9
Re: SRM Clutch Plates Sticking
« Reply #2 on: 23.10. 2022 01:53 »
Terry

I have SRM 4 spring clutches on my 2 BSA’s with no clutch plate sticking issues.

S

Scotty

Current liabilities:
'56 A10 Dark Flash
‘74 Berlin Bomber R75-6

Offline Terryb

  • Beezerban
  • A's Good Friend
  • ***
  • Join Date: Feb 2014
  • Posts: 145
  • Karma: 1
Re: SRM Clutch Plates Sticking
« Reply #3 on: 23.10. 2022 09:31 »
Morning, I inherited this clutch, therefore I have no history, it looks to be almost new. The metal plates had signs of wear with minor tags on and are a snug fit into the clutch centre. I have shortened the clutch rod as recommended by SRM and installed new springs. But I have set the pressure plate up with a clock, but the plates do not release and at best I can get them to just slip kicking her over at speed. I’m thinking that the plain plates or the slots in the centre need looking at.

Online Triton Thrasher

  • Scotland
  • Wise & Enlightened
  • *
  • Join Date: Feb 2009
  • Posts: 1996
  • Karma: 23
Re: SRM Clutch Plates Sticking
« Reply #4 on: 23.10. 2022 10:16 »
Only you can tell whether it’s the centre or  the basket slots that are tight.

If it’s only the plain plates (or some of them), then it won’t cost all that much to try other ones.

Offline dave55

  • Valued Contributor
  • ****
  • Join Date: Oct 2016
  • Posts: 273
  • Karma: 4
Re: SRM Clutch Plates Sticking
« Reply #5 on: 23.10. 2022 13:07 »
does it push the plates out freely if you take the spring tension off and push against them with your fingers ? Maybe the pushrod didnt need shortening ? take the plates out and refit 1 at a time see which are tight? just a thought.
BSA Bantam D7 175  1961
BSA A10 650 Golden Flash 1955 Plunger
Suzuki GSX1400 2003

Offline Terryb

  • Beezerban
  • A's Good Friend
  • ***
  • Join Date: Feb 2014
  • Posts: 145
  • Karma: 1
Re: SRM Clutch Plates Sticking
« Reply #6 on: 23.10. 2022 13:20 »
I’ve just stripped the clutch down and the plates are not original SRM. They look like replacements and they are a very snug fit.

Offline Terryb

  • Beezerban
  • A's Good Friend
  • ***
  • Join Date: Feb 2014
  • Posts: 145
  • Karma: 1
Re: SRM Clutch Plates Sticking
« Reply #7 on: 23.10. 2022 16:08 »
Ok Guy’s problem resolved😇

Basically I dressed all the pressure plates to a better fit and re-adjusted the clutch and Bingo it works fine with the engine stationary. Further work required in other areas and then road test.👍

Thanks to all for your input. Cheers🎷🎺😎