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
Original Vincent ATDs With Steel Covers
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="A_HRD" data-source="post: 47542" data-attributes="member: 49"><p>Given all the chat about ignition timing/magnetos and ATDs, I decided it was time I raised this issue, without hi-jacking someone else's thread. </p><p></p><p>Did anyone out there know that a few of the earlier Series B Vincents had a special ATD fitted in that it had a steel cover over it, presumably to collect any debris in the event of a catastrophic failure? The one in the photos came to me from the original purchaser of a 47 Rapide who lived not far from here. In 1949 he removed the mag, ATD and 276 carbs to replace them with coil ignition and TT carbs respectively - so that he could go racing. And that is the way the bike stayed until he sold it 2 or 3 decades later. However, years later again, I was able to purchase these parts (plus 5 gallons of Castrol R - that should gladden vibrac's heart) that he'd packed-away carefully in a shoe-box. </p><p></p><p>The ATD and fibre gear is in pristine condition having had only a couple of years use. The springs are surprisingly taut and the action silky smooth with no undue looseness or rattles. The cover fits with barely a thou between it and the fibre gear - so getting this dimension right would have been quite traumatic (because the cover moves relative to the gear. I guess it was that, or the inability to see the workings or to wedge open the mechanism to time at full advance, that led to the cover's demise. Subsequent ones of course have the cut-down version resembling a washer. </p><p></p><p>There was a period m/cycle magazine in the late 40s with a Lucas advert showing this covered ATD, but I can't seem to find it. Can anyone else shed any further light on this curiosity? </p><p></p><p>Cheers,</p><p></p><p>Peter B</p><p>Bristol, UK. </p><p></p><p></p><p>[ATTACH]2075[/ATTACH][ATTACH]2076[/ATTACH][ATTACH]2077[/ATTACH]</p></blockquote><p></p>
[QUOTE="A_HRD, post: 47542, member: 49"] Given all the chat about ignition timing/magnetos and ATDs, I decided it was time I raised this issue, without hi-jacking someone else's thread. Did anyone out there know that a few of the earlier Series B Vincents had a special ATD fitted in that it had a steel cover over it, presumably to collect any debris in the event of a catastrophic failure? The one in the photos came to me from the original purchaser of a 47 Rapide who lived not far from here. In 1949 he removed the mag, ATD and 276 carbs to replace them with coil ignition and TT carbs respectively - so that he could go racing. And that is the way the bike stayed until he sold it 2 or 3 decades later. However, years later again, I was able to purchase these parts (plus 5 gallons of Castrol R - that should gladden vibrac's heart) that he'd packed-away carefully in a shoe-box. The ATD and fibre gear is in pristine condition having had only a couple of years use. The springs are surprisingly taut and the action silky smooth with no undue looseness or rattles. The cover fits with barely a thou between it and the fibre gear - so getting this dimension right would have been quite traumatic (because the cover moves relative to the gear. I guess it was that, or the inability to see the workings or to wedge open the mechanism to time at full advance, that led to the cover's demise. Subsequent ones of course have the cut-down version resembling a washer. There was a period m/cycle magazine in the late 40s with a Lucas advert showing this covered ATD, but I can't seem to find it. Can anyone else shed any further light on this curiosity? Cheers, Peter B Bristol, UK. [ATTACH]2075.vB[/ATTACH][ATTACH]2076.vB[/ATTACH][ATTACH]2077.vB[/ATTACH] [/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
Original Vincent ATDs With Steel Covers
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