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
Do I need a refresh?
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="greg brillus" data-source="post: 57376" data-attributes="member: 597"><p>That's an excellent overview of your Comet Martyn, you sure have gone through and learnt a lot.....the outcome has been that you now are rewarded with a Top machine in perfect running condition. It must be said that these same issues apply to all engines, and to keep any classic machine oil tight is not an easy thing to do full stop. I feel that no matter what opinions others have, A Vincent has a breather that is way too small for the capacities they are. But if the engine is correctly put together and beaded in with some care, then the standard breather will work ok. The relationship between the alloy Muff, the liner and the cylinder head joints are one part that needs very careful attention, especially the gap on the heads broad face to be checked before the head and barrel are torqued down to the correct figure. If these are overlooked, the usual remedy of tightening the head bolts down further will almost certainly result in distortion of the liner/barrel......The rings will not seal correctly, and/or the piston/s may on a hot day grab at the points where the hold down studs pass through the assembly......No breather will fix this problem....like all these things, doing it right is the only way, and not hard to achieve. That's what these forums are for. Cheers......Greg.</p></blockquote><p></p>
[QUOTE="greg brillus, post: 57376, member: 597"] That's an excellent overview of your Comet Martyn, you sure have gone through and learnt a lot.....the outcome has been that you now are rewarded with a Top machine in perfect running condition. It must be said that these same issues apply to all engines, and to keep any classic machine oil tight is not an easy thing to do full stop. I feel that no matter what opinions others have, A Vincent has a breather that is way too small for the capacities they are. But if the engine is correctly put together and beaded in with some care, then the standard breather will work ok. The relationship between the alloy Muff, the liner and the cylinder head joints are one part that needs very careful attention, especially the gap on the heads broad face to be checked before the head and barrel are torqued down to the correct figure. If these are overlooked, the usual remedy of tightening the head bolts down further will almost certainly result in distortion of the liner/barrel......The rings will not seal correctly, and/or the piston/s may on a hot day grab at the points where the hold down studs pass through the assembly......No breather will fix this problem....like all these things, doing it right is the only way, and not hard to achieve. That's what these forums are for. Cheers......Greg. [/QUOTE]
Insert quotes…
Verification
What was Mr Vincent's Christian Name?
Post reply
Home
Forums
Forums: Public Access
Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Do I need a refresh?
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