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#9901 - 04/09/06 1:20 am clutch plate corks  
Joined: Jan 2006
Posts: 768
flgoff Offline
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flgoff  Offline
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Joined: Jan 2006
Posts: 768
Middle Tennessee
Anybody out there know of a quick source for clutch plate cork inserts to fit my 1951 BSA C-11? Thanks for any replies. Floyd


Floyd (Member: ThreeMustGetBeers)

There are no demons inside my helmet; only the magic of the Universe gliding past my every sense.
1951 BSA C11(Leaky Lena)
2010 BMW G650 GS(Scarlett)
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#9902 - 04/09/06 1:37 am Re: clutch plate corks  
Joined: Jul 2005
Posts: 1,919
John RGS Offline
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John RGS  Offline
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new jersey usa
Check British Only above. I believe they sell the plate with the inserts. 65-3825


,_o
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(*)/'(*)

NOPGS #2
#9903 - 04/18/06 5:04 am Re: clutch plate corks  
Joined: Oct 2002
Posts: 90
bazza Offline
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bazza  Offline
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Joined: Oct 2002
Posts: 90
New Zealand
I just used unvarnished/ glued cork floor tiles , from memory they were 5mm thick, make a template big enough so that the insert is slightly oversize, then squeeze them home so you get as near as possible equal amounts of cork each side of the plate.
To true everything up glue a sheet of coarse sand paper to a dead flat surface ie a piece of glass and rub each side of the plate on this.
The bike, a B31, has just done its third race and the plates look as good as the day I redid them


Bazza
#9904 - 04/18/06 8:21 am Re: clutch plate corks  
Joined: Oct 2002
Posts: 90
bazza Offline
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bazza  Offline
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Joined: Oct 2002
Posts: 90
New Zealand
PS, can any Kiwi subscribers tell me where I might find a C11G gearbox...cheers.


Bazza
#9905 - 04/29/06 4:57 am Re: clutch plate corks  
Joined: Jul 2004
Posts: 346
pooch Offline
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pooch  Offline
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Posts: 346
Lake Conjola NSW Australia
Bazza, what keeps the corks centralizedZ and not fall to one side and let metal grind on metal?


56 B31 with B33 barrel
51 Golden Flash with Dusting sidecar
#9906 - 04/29/06 8:36 am Re: clutch plate corks  
Joined: Oct 2002
Posts: 90
bazza Offline
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bazza  Offline
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Posts: 90
New Zealand
Gidday pooch, you cut the inserts so they're a little oversized so you have to compress them slightly to get them in... trial and error here to get the template the right size.
I hope I don't confuse the issue here, but I will attempt to describe the fitting proceedure that worked for me...the cut-outs in the plates are tapered, fit the insert in to the narrow/inner edge of the cut-out first, then compress the cork with your fingers as you fit it into the broarder/outer edge of the cut-out.
If your template is too big the resulting corks will be difficult to fit and will actually get a hump in in one side and a hollow in the other.
Boiling the corks will soften them but I found the cork I was using was ok without doing this.
In my post I said the clutch had done 3 races...should have said 3 race meetings,so heaps of laps.
I was a bit daunted when I decided to try and do the job myself but was plesantly surprised at how easy it was and the satisfaction I got from using this ancient method.
Check your plates are perfectly flat before you start, 'coz there's no way you'll build a nice clutch if they're nice and true.

Hope this helps, Barry.


Bazza
#9907 - 04/29/06 9:00 am Re: clutch plate corks  
Joined: Jul 2004
Posts: 346
pooch Offline
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pooch  Offline
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Joined: Jul 2004
Posts: 346
Lake Conjola NSW Australia
gday Bazza.
OK, I did not realise the plate holes were tapered, I will check that out tomorrow.

I have been wondering where I can buy plates or corks for a while.

The floor tile is a good tip.

Now you have given us that info, I may try to make a punch out of stainless and a jig to file some grooves in.

Might be able to make some almost original fit ones....with luck.


56 B31 with B33 barrel
51 Golden Flash with Dusting sidecar
#9908 - 04/29/06 10:29 pm Re: clutch plate corks  
Joined: Oct 2002
Posts: 90
bazza Offline
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bazza  Offline
BritBike Forum member

Joined: Oct 2002
Posts: 90
New Zealand
Hi Pooch, yeah a punch would be the way to make a heap of inserts real quick, making the punch being the hard part.
Cork cuts well with any sharpe blade though.

Tracking down floor tiles that weren't varnished or glued took a bit of effort as well...to be honest, the first inserts I made were cut from old place mats, the type you put your dinner plate on so Mums oak table dosn't get scarred...let us know how you get on, Bazza.


Bazza
#9909 - 04/30/06 1:35 am Re: clutch plate corks  
Joined: Jul 2004
Posts: 346
pooch Offline
BritBike Forum member
pooch  Offline
BritBike Forum member

Joined: Jul 2004
Posts: 346
Lake Conjola NSW Australia
OK, have knocked up a punch out of an old fishing knife.

Broke off 4 pieces and brazed then into shape and brazed a bolt on for a handle.

It cuts neoprene and gasket paper fine.

Now to find some floor tile...

HMM, is the missus out?


56 B31 with B33 barrel
51 Golden Flash with Dusting sidecar
#9910 - 04/30/06 7:24 am Re: clutch plate corks  
Joined: Oct 2002
Posts: 90
bazza Offline
BritBike Forum member
bazza  Offline
BritBike Forum member

Joined: Oct 2002
Posts: 90
New Zealand
...tell you what, slide the fridge out, et voila, should be enough cork under there to do yours and your mates clutches, if the cook finds out, it wasn't my idea, right?...B.


Bazza

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