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
Leaky Banjos
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: 140553" data-attributes="member: 2433"><p>Many Vincent’s suffer from leaky rocker feed bolts in part caused by the tops of the banjo fittings being distorted through overtightening of the set screw. This problem is aggravated by the small size if the heads of the normal ¼” BSF screw (shown below on the right) used at that point as they do not span the top of the banjo sufficiently and as a consequence put the clamp force on the unsupported centre of the banjo.</p><p></p><p>A significant improvement can be made that helps prevents the banjo from becoming distorted in the first place by replacing the standard feed bolts with the oversize head ¼” BSF screws that have a head the size normally found on a 5/16” screw (as shown on the left), that are used on the Amal Monobloc carb. When used with a suitable washer this spreads the clamping load over a much greater area thus preventing the distortion of the banjo.</p><p></p><p>In the UK, Available from D.Middleton & Son (<a href="http://www.stainlessmiddleton.co.uk" target="_blank">www.stainlessmiddleton.co.uk</a>) described as BSF 1/4 X 1/2 Large Head hex set (for Amal carb).</p><p></p><p></p><p>[ATTACH=full]43025[/ATTACH]</p></blockquote><p></p>
[QUOTE="Martyn Goodwin, post: 140553, member: 2433"] Many Vincent’s suffer from leaky rocker feed bolts in part caused by the tops of the banjo fittings being distorted through overtightening of the set screw. This problem is aggravated by the small size if the heads of the normal ¼” BSF screw (shown below on the right) used at that point as they do not span the top of the banjo sufficiently and as a consequence put the clamp force on the unsupported centre of the banjo. A significant improvement can be made that helps prevents the banjo from becoming distorted in the first place by replacing the standard feed bolts with the oversize head ¼” BSF screws that have a head the size normally found on a 5/16” screw (as shown on the left), that are used on the Amal Monobloc carb. When used with a suitable washer this spreads the clamping load over a much greater area thus preventing the distortion of the banjo. In the UK, Available from D.Middleton & Son ([URL="http://www.stainlessmiddleton.co.uk"]www.stainlessmiddleton.co.uk[/URL]) described as BSF 1/4 X 1/2 Large Head hex set (for Amal carb). [ATTACH type="full"]43025[/ATTACH] [/QUOTE]
Insert quotes…
Verification
The Series 'A' Rapide was known as the '********' Nightmare?
Post reply
Home
Forums
Forums: Public Access
Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Leaky Banjos
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