'69S clutch disc - Asbestos?

[IanM]

Does anyone know if the original 1969 911S clutch disc (part number 901.116.017.01) was made of asbestos?

Someone posted a copy of the manual explaining about the codes of Porsche Standard Number, and the second last digit indicates the material.

Number 7 is asbestos.

There is a 7 in the disc part number but it's in the third last digit, not second last, so it is confusing.

Anyone have an answer?

Thanks.

[Lightweight_911]

As far as I know most/all clutch linings (together with brake pads & linings) used to contain asbestos up until relatively recently - so the answer is almost certainly 'yes'.

Since the '69S clutch plate was a one-year only version (thinner than earlier & later plates), any 'new' disc you come across will almost certainly be many years old & hence very likely to contain asbestos.

[IanM]

OK thanks. Do you know if Fichtel & Sachs is now making a modern version (asbestos-free) disc of the same 7mm thickness for the '69S pressure plate?

[Lightweight_911]

I don't think new ones have been made for many years.

I bought several NOS for my 904 replica - I would say the newest was probably 30 yrs old.

[IanM]

I have read on Pelican (I think) that there is a specialist called Kennedy who can replace the clutch linings on existing discs with a more modern friction material but they are based in USA, not here. Anyone know if there is such a specialist in the UK?

The other option is that "014" discs are available as new from Porsche for the copper-faced pressure plate ('67S/'68S), this will obviously be asbestos-free. Do you know if the copper-faced PP is as strong as the '69S version?

[Lightweight_911]

'67/'68S used the std thickness clutch disc - only the '69S used the thinner disc - to allow for the thickness of the steel coating applied to the alloy pressure plate's mating surface.

There are UK companies who can reline brake shoes - they should be able to reline a clutch disc.

I would think the amount of asbestos dust given off by a clutch plate in normal driving would be negligible ...

[myatt1972]

I would think the amount of asbestos dust given off by a clutch plate in normal driving would be negligible ...

I would agree, just take precautions when physically dealing with the disc.

[Bertroex]

My mate had his 924Turbo clutch disc relined (Is that the word?) somewhere in Doncaster. I'll get the details and post it.

Cheers,

Bert

[IanM]

Yes, please let me know the details. Thanks.

[C3s]

I'm not sure where you are but there's a place here in Brum that re-line clutch plates, had a Firebird one done a while back & was perfect [AUTOMOBILE]