Clutch Thickness

[copper]

I've checked the past threads and can't find an answer.

I got a clutch and P-plate from a race shop that does conversions on a lot of the Pcars up here for racing in Group 70. This clutch was removed from a 901 tranny for replacement with race parts.

The clutch has minimal usage. I'm just trying to figure out how much.

It is a 4 spring clutch for a 69 911 with the 901 tranny.
215 mm dia. and the clutch is showing a thickness of 8.5 mm.

Does anyone know what the thickness is on a new Sachs clutch so I can gauge this?

Thanks
Jim

[copper]

Bump...

Anyone have an answer?

Wayne? JW?
Any of the other "gurus"?

Jim

[markmaunz]

I asked the same question yesterday because some wanted to give away a clutch PP and to bearing and someone told me a clutch is considered worn out at 6.3MM Dont know if thats accurate. Hope it helps. Mark

[Early_S_Man]

Jim,

A '69 clutch disk is 9.8 mm +/- 0.4 mm when new, and the wear limit is 6.5 mm ... per the spec book.

[copper]

Thanks Early.

So it's less than halfway.

Much appreciated.

Jim