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
Trevor Southwell re brakes
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="davidd" data-source="post: 177535" data-attributes="member: 1177"><p>As far as I can tell from reading the Ferodo engineer's comments, the floating shoes, based on Burt's design, are allowed to float in all directions rather than one direction. This allows them to float away from the drum as well as towards the drum. Typically, pivoted shoes are "crown-ground" rather than "round-ground" like floating shoes. I assume that Burt was still crown-grinding the shoes causing them to move toward the cam. I am not certain how they would wear.</p><p></p><p>I would guess that the link that joins the pivots is probably the best part of the mod and the floating part is not well thought out. The link should prevent the bending of the pivots toward one another, which is a real problem. The shoes themselves are also bending excessively. </p><p></p><p>I think those same engineers who calculate the angle of the brake shoes through the center hole would be inclined to say that allowing the center hole to move around would not be an advantage for the shoe contact angles with the drum, which seem critical for consistent braking. But, brake geometry is the most complicated engineering on the motorcycle. </p><p></p><p>David</p></blockquote><p></p>
[QUOTE="davidd, post: 177535, member: 1177"] As far as I can tell from reading the Ferodo engineer's comments, the floating shoes, based on Burt's design, are allowed to float in all directions rather than one direction. This allows them to float away from the drum as well as towards the drum. Typically, pivoted shoes are "crown-ground" rather than "round-ground" like floating shoes. I assume that Burt was still crown-grinding the shoes causing them to move toward the cam. I am not certain how they would wear. I would guess that the link that joins the pivots is probably the best part of the mod and the floating part is not well thought out. The link should prevent the bending of the pivots toward one another, which is a real problem. The shoes themselves are also bending excessively. I think those same engineers who calculate the angle of the brake shoes through the center hole would be inclined to say that allowing the center hole to move around would not be an advantage for the shoe contact angles with the drum, which seem critical for consistent braking. But, brake geometry is the most complicated engineering on the motorcycle. David [/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
Trevor Southwell re brakes
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