Recent Posts

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I've been lucky enough to be at several race meetings at Broadford, Philip Isl, & Winton that the Irving Vincent's have been competing, their Quick with a capital Q...
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Wanted & For Sale / Re: Still looking for rims
« Last post by Slymo on 16.05. 2019 21:51 »
Yep its all in the drilling angle! I ended up buying a pair of stainless ones. I'd have prefered chromed Jones rims for originality but these stainless ones were very good value and are the right pattern. Plus as my bikes are in regular use the rims will soon have a covering of grime that will cover any differences.
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When you have to check other people's work it doesn't say much for their quality control or attitude.
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The bike at the very top has the same TPrince 92 mmtop ends as I used, could even be from the same batch. That bike must have a stock 90 mm stroke to get 1200cc whereas I used a 102 mm crank to get 1360 cc.
I see they are quoting 115 HP on the 1200 version with HC pistons, doesn't say which cam. I think to get that kind of HP from a 1200 it would have to be Terry's MK 5 cams, which give the greatest power from a Vincent.
I'm using the HC pistons on the street along with the MK5s, no problem so far, just a beast to kick over at 10.8 to one and 1360 cc.
Of interest, Horner's used Terry's top ends on their first Vincent racer. I doubt if they have moved far from that design, it is a very efficient head, a copy of the late model Norton Manx head further improved by Steve Hamel's input using modified Prince heads to get 120 RWHP from his 998 Vincent Bonneville racer.

Glen
God, I love it when you talk dirty!
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My 4 new clutch springs were all different lengths, one by 1/4". Says it all. 
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The bike at the very top has the same TPrince 92 mmtop ends as I used, could even be from the same batch. That bike must have a stock 90 mm stroke to get 1200cc whereas I used a 102 mm crank to get 1360 cc.
I see they are quoting 115 HP on the 1200 version with HC pistons, doesn't say which cam. I think to get that kind of HP from a 1200 it would have to be Terry's MK 5 cams, which give the greatest power from a Vincent.
I'm using the HC pistons on the street along with the MK5s, no problem so far, just a beast to kick over at 10.8 to one and 1360 cc.
Of interest, Horner's used Terry's top ends on their first Vincent racer. I doubt if they have moved far from that design, it is a very efficient head, a copy of the late model Norton Manx head further improved by Steve Hamel's input using modified Prince heads to get 120 RWHP from his 998 Vincent Bonneville racer.

Glen
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Oh yeah, but this one's quicker https://www.irvingvincent.com/
Cheers

They do blow up rather magnificently

https://vimeo.com/213937426
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That got your attention!

Making a clutch for a Shooting Star under construction. Using the standard BSA clutch crowded roller bearing arrangement.

I trial fitted the clutch to an A10; there was a problem.

The hub turned freely until the centre nut was tightened; then it would bind and release as rotated; notchy.

I checked all the obvious interference areas, but couldn't find the cause.

Then decided to get back to basics, and measured the length of each 1/4"roller with a micrometer, and found the problem,

Two of the rollers (bought as a set) were 0.008" longer.

Replaced them, and now the clutch turns freely!

A reminder to check everything.


Richard
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Clutch, Primary, Gearbox / Re: Clutching at straws
« Last post by Greybeard on 16.05. 2019 12:19 »
My gear lever dropped off at a very inconvenient time.

Fitted a replacement spindle with circlip which prevents it falling off again.
Genius!
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Wanted & For Sale / Re: Still looking for rims
« Last post by ironhead on 16.05. 2019 10:52 »
the rims are the same but the spoke holes are drilled at a different angle on the brake drum side for conicals.

The rims your after are very common, they were also fitted to full width Triumph hubs from the late 50's   up to '68 / 70' twin leader fronts, Also '68 / 70' A65's. I may be able to help if you can't find any as I have to lace a couple up soon with new rims. I'll see how good or bad the old ones are in the next few days.
Cheers Steve.
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