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
Burman 4th Gear Selector Meltdown
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="brian gains" data-source="post: 110909" data-attributes="member: 3153"><p>points taken and the suggestion that if a shim should be needed place it between the outer cam bush flange and the inner cover is a good one.</p><p>Having removed the inner cover it is apparent that the outer cam bush has had a step 'machined' into the flanged end by the action of the gear change cam shaft, this would account for the excessive end play so as you (tatty) say I will need to take into account the gasket thickness. Having run the box for thousands of miles with no gasket from the PO's rebuild does not mean that this was good practice.</p><p>Bill: I haven't pulled the box out this time but when I did at the start of the summer I found the drive sprocket retainining nut loose and the bearing / oil seal circlip not seated. Having replaced the circlip I am satisfied the bearing is in the correct position and did not notice any damage to the casing. What I did do was measure the depth of the casing from the sprocket end to the face of the mainshaft bearing in consideration of putting an up graded oil seal as per the Draganfly site suggestion but it appears that there is insufficient depth as they say can be the situation in some cases. Now considering the replacement gear change bush in the inner cover and whether to have one made up or buy standard replacement. I trust new parts aren't NOS as I am not impressed at all by the quality of the material of the existing part. Once again a consequence of Burman boxes being sourced on financial considerations and also quality materials being in short supply?</p></blockquote><p></p>
[QUOTE="brian gains, post: 110909, member: 3153"] points taken and the suggestion that if a shim should be needed place it between the outer cam bush flange and the inner cover is a good one. Having removed the inner cover it is apparent that the outer cam bush has had a step 'machined' into the flanged end by the action of the gear change cam shaft, this would account for the excessive end play so as you (tatty) say I will need to take into account the gasket thickness. Having run the box for thousands of miles with no gasket from the PO's rebuild does not mean that this was good practice. Bill: I haven't pulled the box out this time but when I did at the start of the summer I found the drive sprocket retainining nut loose and the bearing / oil seal circlip not seated. Having replaced the circlip I am satisfied the bearing is in the correct position and did not notice any damage to the casing. What I did do was measure the depth of the casing from the sprocket end to the face of the mainshaft bearing in consideration of putting an up graded oil seal as per the Draganfly site suggestion but it appears that there is insufficient depth as they say can be the situation in some cases. Now considering the replacement gear change bush in the inner cover and whether to have one made up or buy standard replacement. I trust new parts aren't NOS as I am not impressed at all by the quality of the material of the existing part. Once again a consequence of Burman boxes being sourced on financial considerations and also quality materials being in short supply? [/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
Burman 4th Gear Selector Meltdown
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