Pip,
OK, so now we've got three great nations separated by a common language!
When did a clutch disc become a driven plate?
I have an after market replacement for a PA made by Small & Parkes, Ltd. of
Manchester. It has a 'sticker' that says "Don-Flex" patent Clutch Disc.
Its 0.375" thick.
Cheers, "Bob".
> From: "Pip Bucknell" <mgwizard@caloundra.net>
> Reply-To: "Pip Bucknell" <mgwizard@caloundra.net>
> Date: Thu, 17 Jan 2002 19:19:08 +1000
> To: "MMM List UK" <mg-mmm@autox.team.net>
> Subject: I am surprised.
>
> I am surprised that no one has been able to give me the thickness of the PA
> clutch. The early one.
>
> I had some good hints and found the well known clutch drawings thanks to leads
> supplied by some of you.
>
> Terry (S) gave me the measurement on his used driven plate but I do not know
> if that was the original plate or the later plate used.
>
> Another USA contact kindly gave me figures that supposedly came from blower.
> My guess is that he deduced from measurements shown in blower and came to the
> conclusion that the driven plate should be either 10/32". or 1/4". But as the
> linings on each side of the metal disk(s) are not less than 1/8" (usually,
> anyway) I would guess that is perhaps a risky way for me to order a clutch
> driven plate.
>
> So I have ordered 2 plates locally to be made to my specifications & these 2
> will cost me less than 1 plate from UK.
>
> The basis of my problem is that I use a diaphragm clutch pressure plate from a
> Ford Escort (190mm diameter). The clutch driven plate for my 5 speed gear box
> has 22 splines & the input shaft is exactly the same length as a P-type input
> shaft. With a diaphragm clutch pressure plate, the thickness of the driven
> plate is pretty critical, otherwise the whole thing goes "over centre". And
> this is not good.
>
> It is also important if I am to have the 5 speed box easily interchangeable
> with the MG/Wolseley crash boxes, that each should have the same thickness
> clutch driven plate.
>
> So that solves that problem, the worms have been fed to the fishes.
>
> Incidentally does any one know why gearboxes with a code 150 have a shorter
> input shaft than the P & N gearboxes. (I do know the answer to this one).
>
> Regards
>
>
> Pip
> AUSTRALIA
>
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