Copper faced 67s Flywheel

[gilbert911]

This is mine in the picture.
Is the pressure plate with the same copper face the only one I can use for this to work effectively?

Thanks for your help

[beh911]

What's the part number for the PP? I see a sticker on a bag underneath it

[edmayo]

I believe the copper face on the flywheel was to aid in heat dissipation, the copper on the pressure plate is to provide a wearing surface for the aluminum foot of the pressure plate. Back in the seventies we always used the two together with, I believe, a standard thickness disc. In 69 this changed to a non copper faced flywheel, a steel sprayed surface on the pressure plate, and a thinner clutch disc to compensate for the thicker clutch foot due to the metal spray surface. I'm sure you could use a standard steel pressure plate, and a standard thickness disc against the copper faced flywheel. The copper surfaces seemed to wear rapidly, so often the whole set-up was converted to standard issue.
There will likely be others with better info on this!

[gilbert911]

Ed,
Thx for your insight.
Beh,
Pic of sticker attached.

[docrodg]

The copper facing lasted no real time and Porsche did away with it in 69. heh, that rhymes... anyway, the replacements are non-copper faced and just fine to use.

[Neil '67 911S]

Ralph Jones, the Springfield,MA dealer rebuilt Ol' Ivory's engine in 1975. When I pulled the engine (frozen up) in 2005, the copper face pressure plate was still in place but there was no trace of copper on the flywheel.