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comet with unmarked timing gear

alscomet

Well Known and Active Website User
VOC Member
If anyone remembers my previous thread from a week ago I just want to post an update,can i have some comments please if i have done anything wrong.
I took my comet to the Bawtry meeting and it seemed to be running worse than before,hard to start and fuel coming out of the carb when running and overheating badly,got there and back(just)spoke to a guy called Rod Hornsby
who i think has pinpointed the problem.When i got back i stripped off the timing side,put my Dial gauge on and here are the readings.Inlet opening 70deg BTDC
inlet closed 40Deg ABDC Exhaust opens 98deg BBDC ex closes 3deg ATDC.
I think the cam shaft is moving on the cam wheel ever so slightly every time i use the bike. I have spot welded the cam to the wheel on the outside and reset the valve clearances to 41degBTDC inlet opens,69degADBC inlet closes and the exhaust has followed suit.the lift on the inlet cam is .28" and the exhaust cam lift
is .3" there are no marks on the cam so i am not sure what it is. the bike runs and starts ok but i havent tried it on the road yet. do i need a new camshaft complete or does it sound like a problem fix. alan
 

Ken Tidswell

Well Known and Active Website User
VOC Member
Running the Vincent H.R.D. Owners Club online forum costs money, and like other organisations, we have annual software and hosting costs which are significant. These costs are paid for entirely by the Members of our Club. Sadly, we don't have a magic money tree!

If you're viewing this annoying messsage, you have been identified as a regular non-Member user of our online forum for some time, and we’d really appreciate it if you could give some thought to joining the Club to offset some of the costs mentioned previously.

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Tom Gaynor

Well Known and Active Website User
VOC Member
Running the Vincent H.R.D. Owners Club online forum costs money, and like other organisations, we have annual software and hosting costs which are significant. These costs are paid for entirely by the Members of our Club. Sadly, we don't have a magic money tree!

If you're viewing this annoying messsage, you have been identified as a regular non-Member user of our online forum for some time, and we’d really appreciate it if you could give some thought to joining the Club to offset some of the costs mentioned previously.

You can join the Vincent H.R.D. Owners Club, remove this annoying message, and gain full access to all website facilities by CLICKING HERE.

 

nkt267

Well Known and Active Website User
VOC Member
Running the Vincent H.R.D. Owners Club online forum costs money, and like other organisations, we have annual software and hosting costs which are significant. These costs are paid for entirely by the Members of our Club. Sadly, we don't have a magic money tree!

If you're viewing this annoying messsage, you have been identified as a regular non-Member user of our online forum for some time, and we’d really appreciate it if you could give some thought to joining the Club to offset some of the costs mentioned previously.

You can join the Vincent H.R.D. Owners Club, remove this annoying message, and gain full access to all website facilities by CLICKING HERE.

 
Last edited:

alscomet

Well Known and Active Website User
VOC Member
Running the Vincent H.R.D. Owners Club online forum costs money, and like other organisations, we have annual software and hosting costs which are significant. These costs are paid for entirely by the Members of our Club. Sadly, we don't have a magic money tree!

If you're viewing this annoying messsage, you have been identified as a regular non-Member user of our online forum for some time, and we’d really appreciate it if you could give some thought to joining the Club to offset some of the costs mentioned previously.

You can join the Vincent H.R.D. Owners Club, remove this annoying message, and gain full access to all website facilities by CLICKING HERE.

 

nkt267

Well Known and Active Website User
VOC Member
Running the Vincent H.R.D. Owners Club online forum costs money, and like other organisations, we have annual software and hosting costs which are significant. These costs are paid for entirely by the Members of our Club. Sadly, we don't have a magic money tree!

If you're viewing this annoying messsage, you have been identified as a regular non-Member user of our online forum for some time, and we’d really appreciate it if you could give some thought to joining the Club to offset some of the costs mentioned previously.

You can join the Vincent H.R.D. Owners Club, remove this annoying message, and gain full access to all website facilities by CLICKING HERE.

 

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