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
Cam Wear
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="Martyn Goodwin" data-source="post: 92711" data-attributes="member: 2433"><p>You MUST find and fix the ticking noise - its something banging against an immovable object! </p><p></p><p>Some random comments:</p><p></p><p>Rocker feed bolts - open up the oil holes top and bottom to 1 mm then ADD 2 more holes also 1 mm, one at the top and one at the bottom. This gives a total of 4 holes in each rocker feed bolt - not a problem if you have valve stem seals in place. As a result you get a lot more oil going down the pushrod tubes to lubricate the cam/cam lifter bits.</p><p></p><p>Oil Hole in Timing side case above the oil pump worm - open it up to at least 1/4" diam. to give the oil pump itself a easier time.</p><p></p><p>Valve Lifter Mech: check clearances to be sure the TP cam lobes have plenty of room, especially on the front cylinder. When I tried TP cams this was one area where I had to remove a LOT of metal from the base of the valve lifter arm.</p><p></p><p>'Tappet' adjusters: make sure there is at least 0.040: clearance between the underside of the 'cap' and the adjusters when at max lift. You can crib extra space by following Gregs tip on removal of the bolt head or by fitting Neal Videan's socket head adjusters - another bodge is to use 2 gaskets under the caps. Not all caps are the same - some provide more clearance than others - I have no idea why.</p><p></p><p>Rocker Arms, Rocker Bearings and Locking Feed Bolts: Often easy to run out of room here. Check for clearance between the upper surface of the rocker arms at both Max and zero lift - I found I needed to remove a fair amount of material by grinding (then polishing) from the upper surface of my rocker arms to get sufficient clearance. </p><p></p><p>Cam followers: An oiling tip - Cut/grind some notches into to top side of the pivot ends of the cam followers to provide better spindle lubrication.</p><p></p><p>Martyn</p></blockquote><p></p>
[QUOTE="Martyn Goodwin, post: 92711, member: 2433"] You MUST find and fix the ticking noise - its something banging against an immovable object! Some random comments: Rocker feed bolts - open up the oil holes top and bottom to 1 mm then ADD 2 more holes also 1 mm, one at the top and one at the bottom. This gives a total of 4 holes in each rocker feed bolt - not a problem if you have valve stem seals in place. As a result you get a lot more oil going down the pushrod tubes to lubricate the cam/cam lifter bits. Oil Hole in Timing side case above the oil pump worm - open it up to at least 1/4" diam. to give the oil pump itself a easier time. Valve Lifter Mech: check clearances to be sure the TP cam lobes have plenty of room, especially on the front cylinder. When I tried TP cams this was one area where I had to remove a LOT of metal from the base of the valve lifter arm. 'Tappet' adjusters: make sure there is at least 0.040: clearance between the underside of the 'cap' and the adjusters when at max lift. You can crib extra space by following Gregs tip on removal of the bolt head or by fitting Neal Videan's socket head adjusters - another bodge is to use 2 gaskets under the caps. Not all caps are the same - some provide more clearance than others - I have no idea why. Rocker Arms, Rocker Bearings and Locking Feed Bolts: Often easy to run out of room here. Check for clearance between the upper surface of the rocker arms at both Max and zero lift - I found I needed to remove a fair amount of material by grinding (then polishing) from the upper surface of my rocker arms to get sufficient clearance. Cam followers: An oiling tip - Cut/grind some notches into to top side of the pivot ends of the cam followers to provide better spindle lubrication. Martyn [/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
Cam Wear
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