Clutch plate thickness
05-20-2010 | 01:25 PM
#1
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Joined: Feb 2003
Posts: 78
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From: Edinburgh/UK
Clutch plate thickness
Hi all,
While my 996TT is having major engine surgery - snapped timing chain, bent valves etc. but seems repairable.... I figure I may as well replace the clutch. It was replaced last year but has done 20k miles since, and as each previous clutch lasted 30k miles, it would be worth doing now.
As the fly, pressure plate and friction disc were all new last year and seem in perfect condition, rather than pay the £500 that Porsche wanted, I figure I could get the disc relined for around £50. To do this I would need the overall thickness of a new friction disc. Does any one know this number?
Also has anyone done anything like this?
M
While my 996TT is having major engine surgery - snapped timing chain, bent valves etc. but seems repairable.... I figure I may as well replace the clutch. It was replaced last year but has done 20k miles since, and as each previous clutch lasted 30k miles, it would be worth doing now.
As the fly, pressure plate and friction disc were all new last year and seem in perfect condition, rather than pay the £500 that Porsche wanted, I figure I could get the disc relined for around £50. To do this I would need the overall thickness of a new friction disc. Does any one know this number?
Also has anyone done anything like this?
M
05-21-2010 | 12:18 PM
#3
Race Director
Joined: Sep 2006
Posts: 19,034
Likes: 255
From: Centerton, AR
Hi all,
While my 996TT is having major engine surgery - snapped timing chain, bent valves etc. but seems repairable.... I figure I may as well replace the clutch. It was replaced last year but has done 20k miles since, and as each previous clutch lasted 30k miles, it would be worth doing now.
As the fly, pressure plate and friction disc were all new last year and seem in perfect condition, rather than pay the £500 that Porsche wanted, I figure I could get the disc relined for around £50. To do this I would need the overall thickness of a new friction disc. Does any one know this number?
Also has anyone done anything like this?
M
While my 996TT is having major engine surgery - snapped timing chain, bent valves etc. but seems repairable.... I figure I may as well replace the clutch. It was replaced last year but has done 20k miles since, and as each previous clutch lasted 30k miles, it would be worth doing now.
As the fly, pressure plate and friction disc were all new last year and seem in perfect condition, rather than pay the £500 that Porsche wanted, I figure I could get the disc relined for around £50. To do this I would need the overall thickness of a new friction disc. Does any one know this number?
Also has anyone done anything like this?
M
If the flywheel, pressure plate, and friction disc were all new last year and seem in perfect condition then I see no reason to even go the expense of having the disc relined.
Generally disc wear is accelerated early in the clutch's life and then slows way down and essentially becomes zero for a long long time.
If you relined the clutch chances are the gain in clutch disc thickness would be lost again during the initial use of the clutch and the clutch disc's thickness would be very close to what it is now in a short span of time.
Sincerely,
Macster.
05-22-2010 | 02:25 AM
#5
Race Director
Joined: Sep 2006
Posts: 19,034
Likes: 255
From: Centerton, AR
I don't see how one can derive the thickness of the disc friction material from that drawing.
Unless the rivets alternate directions from which they were installed and knowing how much distance there is between the disc material and the rivet on one side and then the other one can with the existing thickness work it out.
Sincerely,
Macster.
Unless the rivets alternate directions from which they were installed and knowing how much distance there is between the disc material and the rivet on one side and then the other one can with the existing thickness work it out.
Sincerely,
Macster.
