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
Camshaft design
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="oexing" data-source="post: 90928" data-attributes="member: 1493"><p>Thanks for these pictures. Roller cam followers are quite common today but most of them are used on ohc designs, often for smaller four valve gear. In case of the Vincent engine they would operate not only the big valve but one pushrod and another rocker so dimensions matter here a lot. In my eyes the roller above looks not overly big so one will see if it is a durable proposition. There were numerous - plain bearing - roller followers for pushrods even prewar like Horex when I did a crowded needle roller mod like in the 1935 Guzzi we run like that since the eighties, no problems. The pinions are casehardened for the needles of course and punchlocked with carbide punch in the followers. </p><p> Maybe a curved contact pad on the near standard Vincent follower , no roller, would be tougher instead, lighter too. That would be very similar to the postwar Horex Regina with almost roller looking followers and certainly cam lobe shapes to go with the curved followers.</p><p></p><p> Vic</p><p>[ATTACH=full]19508[/ATTACH][ATTACH=full]19509[/ATTACH][ATTACH=full]19511[/ATTACH]</p></blockquote><p></p>
[QUOTE="oexing, post: 90928, member: 1493"] Thanks for these pictures. Roller cam followers are quite common today but most of them are used on ohc designs, often for smaller four valve gear. In case of the Vincent engine they would operate not only the big valve but one pushrod and another rocker so dimensions matter here a lot. In my eyes the roller above looks not overly big so one will see if it is a durable proposition. There were numerous - plain bearing - roller followers for pushrods even prewar like Horex when I did a crowded needle roller mod like in the 1935 Guzzi we run like that since the eighties, no problems. The pinions are casehardened for the needles of course and punchlocked with carbide punch in the followers. Maybe a curved contact pad on the near standard Vincent follower , no roller, would be tougher instead, lighter too. That would be very similar to the postwar Horex Regina with almost roller looking followers and certainly cam lobe shapes to go with the curved followers. Vic [ATTACH=full]19508[/ATTACH][ATTACH=full]19509[/ATTACH][ATTACH=full]19511[/ATTACH] [/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
Camshaft design
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