Hello Kai,
Your statement - "........the Saab non-turbo pressure plate assembly will
work! This is the same specification pressure plate as used in the
Triumph GT6, TR4A / 250 / 5. However, THIS IS NOT the plate recommended
for use in the TR6 installation. The non-turbo pressure plates are not
built to the higher specification of the turbo assembly, and thus can not
manage the extra power and torque effectively. This is especially true
if you have a modified TR6."
My thoughts - I wonder if this was the same philosophy used when the Borg
and Beck product became an issue. Most of these TR6s are not modified
and I dare say there are probably more carberetted cars than PI cars
still in existence. There is a reason for all the wear on the mechanical
and hydraulic components on these cars and I believe that plate spring
pressure is the culprit. Often times people think that "if a little is
good...more must be better" You don't say if the spring force was
increased on the Turbo model but I suspect it was. So much for "clutch
lore".....seems to be a lot of people out there with TR6 clutch problems.
Thanks for the reference information....I'll save it.
Jay Welch, Abington MA
1971 TR6 project
1973 TR6 driver - wanting to "Drive it Hard"
Member "Cape Cod British Car Club" @
http://clubs.hemmings.com/capecodbritish/
===================================
> From: "Kai M. Radicke" <kmr@pil.net>
> To: <RPVanLuchene@lbl.gov>, <jay_welch@juno.com>,
> <6pack@autox.team.net>
> Date: Tue, 23 Oct 2001 21:35:15 -0400
> Subject: Re: compatible clutch parts
> Message-ID: <018801c15c2c$227d7bd0$0100a8c0@lucifer>
> References: <455e946e0b.46e0b455e9@lbl.gov>
>
> The TR6 throwout bearing is a Triumph only part, used on the TR4A /
> 250 / 5
> / 6 and Triumph Stag. Clutch Disc is also a Triumph only bit, not
> swapable
> with other marques. It is the Clutch Pressure Plate assembly which
> is
> swapable with a bunch of other cars.
>
> (and I've posted this before in the past... so save it this time,
> this is
> correct information)
>
> This information is directly from the 1984-1985 Quinton Hazell
> Clutch
> Components book:
>
> Clutch Cover Assembly
> Q10028 (Quinton Hazell Part Num.)
> Borg & Beck: HE2847, HE3338, HE2499
> Saab: 8712036
> Unipart: GCC139
>
> Rover 2000 SC, 2200 TC 1973-77
> Saab 99 Turbo 4 Speed 1977-
> Saab 900 Turbo 4 Speed 1979-
> Triumph 2500 PI MK.I, II, 2500 TC, 2500S 1965-77
> Triumph TR6 1969-76
> Vauxhall Ventora II FD, from ch.OV252010 1969-72
> Vauxhall Ventora FE 1972-76
> Vauxhall Victor FD 3300, SL (Estate) 1968-72
> Vauxhall Viscount to ch.IV324999 1965-70
>
> I don't recommend using Quinton Hazell clutches if you come across
> them,
> they're garbage. They simply have a very very nice reference book,
> which is
> well presented with excellent information.
>
> Now I will say this, the Saab non-turbo pressure plate assembly will
> work!
> This is the same specification pressure plate as used in the Triumph
> GT6,
> TR4A / 250 / 5. However, THIS IS NOT the plate recommended for use
> in the
> TR6 installation. The non-turbo pressure plates are not built to
> the higher
> specification of the turbo assembly, and thus can not manage the
> extra power
> and torque effectively. This is especially true if you have a
> modified TR6.
> I doubt use of the Saab non-turbo pressure plate it would pose a
> problem on
> the stock emissions strangled non-PI American TR6s. But for the
> record,
> most of the TR6 clutch lore surrounding the Saab pressure plates
> have
> recommended the turbo pressure plate and it's part numbers.
>
> Kai
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