Absolutely true, I was commenting more on the time aspect of it. According
to Ted Martin, his engines were used quite a bit in sedan racing in England
in the '60's, I have no idea with what clutch.
In the "does anyone care but me" category, the "Cosworth flywheel and BMC
ring gear cost 15 #, the "thick slotted ring" was 9#. 15, the
"Carrerra clutch assembly" was 18#. and the bonded plate was 5#. 15.
shipped in April 1967, supplied by Roy Winkleman Racing Limited of Slough,
Bucks, England.
Cheers, Brian
At 12:46 AM 10/14/00 -0400, you wrote:
>The Martin-Ford engine was not exactly a "production car engine" or
>application.
>
>Greg Solow
>----- Original Message -----
>From: Brian Evans <brian@uunet.ca>
>To: Greg Solow <gregmogdoc@surfnetusa.com>; <JWoesvra@aol.com>;
><ericsmgs@prodigy.net>; <lwdent@fwi.com>; <mgvrmark@hotmail.com>
>Cc: <grand_wazoo@flinet.com>; <malcox@sonic.net>;
><vintage-race@autox.team.net>
>Sent: Friday, October 13, 2000 6:26 AM
>Subject: Re: clutch rebuilding
>
>
> > The Martin/Ford engine that was in my Merlyn had a 7.25 inch clutch in
> > 1966. To be sure, it was described in the invoice (which I also have,
> > believe it or not) as a Porche clutch of some type, but it is (I still
>have
> > the original clutch as well, the PO's for this car kept everything!) a
>bolt
> > in match for the Quartermaster clutch of essentially identical design now
> > on that engine. Bolt circle is the same, it has a "thick slotted ring"
> > (quote from the invoice) to space the pressure plate off the flywheel,
> > etc. The only significant difference is that it used an organic type
>disc,
> > so that I had to machine a .100" step in the flywheel to accommodate the
> > thin metallic disc that the Quartermaster clutch uses and I think it has a
> > pressure disc to actuate the spring fingers, while the Quartermaster has
> > the throw-out bearing act directly on the spring fingers.
> >
> > Now, this was a single plate clutch, to be sure, but I found this all very
> > interesting...
> >
> > Brian
> >
> >
> > At 02:07 AM 10/13/00 -0400, Greg Solow wrote:
> > >Gee, I always thought that a small diameter multiplate clutch only became
> > >available in the last 15 years or so . To my way of thinking that makes
>it
> > >fit the perfect description of a "non-vintage" modification akin to
>roller
> > >rocker arms or a belt drive conversion on a BMC "A' series engine. If I
> > >remember correctly, the SCCA rules thoughout the 60s and 70s required the
> > >use of a clutch of standard diameter and type of construction in all
> > >production cars.
> > >
>Regards,
> > >Greg Solow
> > >
> > >The Engine Room
> > >
> > >Santa Cruz, Ca.
> > >----- Original Message -----
> > >From: <JWoesvra@aol.com>
> > >To: <ericsmgs@prodigy.net>; <lwdent@fwi.com>; <mgvrmark@hotmail.com>
> > >Cc: <grand_wazoo@flinet.com>; <malcox@sonic.net>;
> > ><vintage-race@autox.team.net>
> > >Sent: Friday, October 06, 2000 4:33 AM
> > >Subject: Re: clutch rebuilding
> > >
> > >
> > > > In a message dated 10/5/00 6:35:08 PM Pacific Daylight Time,
> > > > ericsmgs@prodigy.net writes:
> > > >
> > > > << Joint and Clutch in Charlotte, NC >>
> > > >
> > > >
> > > > I use Joint and Clutch in Columbia, SC. They built new half-shafts for
>my
> > >GT6
> > > > when I converted to Datsun outer hubs. Triumph flange on inboard end,
> > >Datsun
> > > > flange on the outer. Work great. They can make any drive-line
>component
> > >you
> > > > need. Of course they reline brakes and clutches too.
> > > >
> > > > However, I'm sure that every big city has a similar service. Many have
> > >been
> > > > in business for a long time and may still have real asbestos lining
> > >material
> > > > such as Grey Rock hidden in the back. They are not supposed to use it
>any
> > > > more, but there is nothing better for drum brakes if you can find it.
> > > >
> > > > A final thought for racers; it is really better to go to a Tilton
>style
> > > > clutch. This eliminates the deficiencies of the Borg & Beck type which
>is
> > > > prone to high rpm failure. They also work well in oily conditions.
> > > >
> > > > Jack Woehrle
> > > >
> >
> > Brian Evans
> > Director, Strategic Accounts
> > UUNET, A WorldCom Company
> >
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