T140E Bonnie-Clutch cushion rubber woe's - Triumph Forum: Triumph Rat Motorcycle Forums
Classic, Vintage & Veteran For Coventry and Meriden Models. Anything pre-Hinckley goes.

 
LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 08-28-2014, 07:53 AM Thread Starter
Grand Prix 125
Main Motorcycle: Bonneville T140E
New Member
 
Join Date: Nov 2012
Location: Adelaide South Australia
Posts: 29
Other Motorcycle: 76'Yam XS750
Cool T140E Bonnie-Clutch cushion rubber woe's

G'day Bonnie clutch guru's, I am in the process of rebuilding my clutch with new original friction plates, screwed pins, springs, bolts and the 57-1722 and 57-1723 large and small drive and rebound rubbers(cushions). After stripping and cleaning the clutch centre and shock absorber spider, which hold these rubbers, I did a quick large rubber fit and noticed that the rubber is not as thick (17mm) as the width of the spiders paddles (22mm). Should I be worried that I have been sold the wrong thickness rubbers, or do they get so compressed once the small rubbers are force fitted that the space is soon taken up? I just do not want to damage any, in case I have to take them back to my supplier. Unfortunately the supplier is only open part time, which does not include Fridays! I did notice that the old rubbers were ~22mm thick, but put this down to age, oil contamination and compression due to gear changing, which is what they are supposed to do. Note, my old rubbers were compressible with just my fingers pinching them together. Cheers, John.
DownunderJohn is offline  
Sponsored Links
Advertisement
 
post #2 of 2 (permalink) Old 08-28-2014, 09:32 AM
World SuperBike
Main Motorcycle: 1973 Triumph TR7RV
Senior Member
 
TR7RVMan's Avatar
 
Join Date: Oct 2013
Location: Pleasant Hill, CA USA
Posts: 2,484
Other Motorcycle: 1964 Triumph Mountain Cub
Hi John, I just did those a few weeks ago. That is rather normal. When you get them compressed in they widen a fair amount. The rubbers won't be damaged with a test fitting. For an experiment fit the 3 large rubbers & compress them like you're going to fit the small rubbers. You'll see what I mean (or not). When all are fitted mine filled the space with just a slight lowness from edge, or even sticking up on some. Take a screw driver & tuck the edges down so no rubber gets trapped by the outer covers. Mine wanted to do that on some. Look over Lunmand's video on youtube. I made a clutch plate tool as he did. Instead of a wrench, I held the center with a flat metal bar filed to fit the spine nicely. Held that bar in vise & cranked around drum with 3' long lever. They don't want to compress easy. I was able to force in small rubbers with left hand while holding compression tool with right hand.
Don
TR7RVMan is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options
All posts must adhere to Forum Rules

Register Now



In order to be able to post messages on the Triumph Forum: Triumph Rat Motorcycle Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter your valid email address, that can receive an automated confirmation message. Otherwise, you won't be able to gain full access.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
T140v Clutch Rubber Renewal Portland Bill Classic, Vintage & Veteran 13 08-04-2014 12:57 AM
Bonnie T140E 1982 clutch issue DownunderJohn Classic, Vintage & Veteran 10 07-20-2014 10:40 AM
82'Bonnie T140E-clutch adjustment DownunderJohn Classic, Vintage & Veteran 2 03-07-2014 03:09 PM
72 Daytona clutch rubber unit swgee Classic, Vintage & Veteran 1 07-18-2011 04:59 AM
clutch nut torque T140E cbm206 Classic, Vintage & Veteran 2 07-28-2009 05:12 PM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome