• Welcome to the website of the Vincent H.R.D. Owners Club.

    Should you have any questions relating to the Vincent H.R.D. Owners Club, or Vincent H.R.D. motorcycles in general, please contact Graham Smith, Hon. Editor and Webmaster by calling 07977 001 025 or please CLICK HERE.

    You are unrecognised, and therefore, only have VERY restricted access to the many features of this website.

    If you have previously registered to use this forum, you should log in now. CLICK HERE.

    If you have never registered to use this website before, please CLICK HERE.

Comet Timing Gears


Website User
VOC Member
I have recently changed the alloy idler gears on my comet for steel ones. All the timing marks lined up on removal and on fitting the new gears. The only problem I can see is with the breather cog as when the "B" mark is just leaving the "B" mark on the large idler, the slot in the breather is at 2 o'clock and not pointing straight down as per diagram. Should I set it to the "B" mark or with the slot pointing down.

Latest Forum Threads

Can't Find What You Need?

Buyer Beware: Fake or Real?

The Mighty Garage Videos

List of Forum Categories