The Spares Company
Club Shop/Regalia
Parent Website
Contact Officials
Machine Registrar
Club Secretary
Membership Secretaries
MPH Editor and Forum Administrator.
Section Newsletters
Technical Databases
Photos
Home
What's new
Latest activity
Forums
New posts
What's new
New posts
Latest activity
Information
Bike Modifications
Machine Data Services
Manufacturers Manuals
Spare Parts Listings
Technical Diagrams
Whitakerpedia (Vincent Wiki)
The Club
MPH Material Archive
Flogger's Corner
Obituaries
VOC Sections
Local Sections
Local Section Newsletters
Miscellaneous
Club Assets
Club History
Club Rules
Machine Data Services
Meeting Documents
Miscellaneous
Essential Reading
Magazine/Newspaper Articles/Letters
Adverts and Sales Brochures
The Mighty Garage Videos
Bikes For Sale (Spares Company)
Log in
Register
What's new
New posts
Menu
Log in
Register
Install the app
Install
Home
Forums
Forums: Public Access
Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Clutch plunger spring adjustment
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="stu spalding" data-source="post: 126440" data-attributes="member: 2563"><p>Hi Bob, the dummy centre should be a snug fit in the shoe carrier C3 and a slip fit in the plate carrier C13. Assemble the carriers, shoes, links etc and hold C3 in a vice, keeping in mind that the bearing surface for the chainwheel bushes is not hardened and is easily marked, put a large screwdriver through the pins C14 and turn C13 in either direction against the plunger spring, I assume you've thrown away the double springs and fitted the single spring as it was found that the double springs binding during compression was a cause of clutch grab. The single springs are available from Derek Sayer although I should imagine that other people have made them by now. Turning C13 will expand the shoes to the point where the plunger hits thimble C12 and the linings should be 6 inches across at this point. I reline the shoes with oversize linings and jig grind them on the lathe to make sure that they're concentric. I hope this is of some use but please feel free to ask if you need more info. Cheers, Stu.</p></blockquote><p></p>
[QUOTE="stu spalding, post: 126440, member: 2563"] Hi Bob, the dummy centre should be a snug fit in the shoe carrier C3 and a slip fit in the plate carrier C13. Assemble the carriers, shoes, links etc and hold C3 in a vice, keeping in mind that the bearing surface for the chainwheel bushes is not hardened and is easily marked, put a large screwdriver through the pins C14 and turn C13 in either direction against the plunger spring, I assume you've thrown away the double springs and fitted the single spring as it was found that the double springs binding during compression was a cause of clutch grab. The single springs are available from Derek Sayer although I should imagine that other people have made them by now. Turning C13 will expand the shoes to the point where the plunger hits thimble C12 and the linings should be 6 inches across at this point. I reline the shoes with oversize linings and jig grind them on the lathe to make sure that they're concentric. I hope this is of some use but please feel free to ask if you need more info. Cheers, Stu. [/QUOTE]
Insert quotes…
Verification
What was Mr Irving's Christian Name?
Post reply
Home
Forums
Forums: Public Access
Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Clutch plunger spring adjustment
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top