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Thread: Replacement clutch ideas?

  1. #1
    Join Date
    Oct 2006
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    Cincinnati
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    Default Replacement clutch ideas?

    Since my engine is out and being rebuilt, I had my mechanic look at the clutch he put in 4 years ago. He says its time for it to be replaced and, while I am at it, do the flywheel and pressure plate, and throwout bearing. We put in an off-the shelf pedestrian unit 4 years ago and it wasn't ideal. So I am wondering what people are using for track focused purposes that might be a little more stout?

    I have a Zetec powered S3 with a 6 sp Caterham transmission.
    '97 Caterham Super Sprint, 1700 Crossflow-sold
    '09 Birkin S3, Duratec-sold
    '03 Caterham Zetec track car

  2. #2
    Join Date
    Feb 2009
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    NYC
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    Default

    Really? You had 180hp (thereabouts) and a standard clutch could not carry it? Flywheel should be ok, no? Your wear seems pretty extreme even by track standards - 50 track days at most. Did you have the correct street clutch to start with?

    Good idea to do it now though. Learned that lesson quite a few years back...
    Mike
    2010 Caterham CSR with Cosworth 2.3 Duratec
    2018 Caterham 420R with 2L Duratec 210hp at Donington UK
    1975 BMW CSL Group 4 (restoration - engine and dry sump install time)
    1977 Holden Torana "A9X" (awaiting restoration)
    1985 Holden Commodore Group A (restoration - engine rebuild)
    1982 Ferrari 400i (will repaint to original color in 2020)
    1965 Ford Mustang Fastback "Holman Moody"
    1992 Ford Escort RS Cosworth WRC (fettling after long period of storage)
    1990 Range Rover 2 door Classic

  3. #3
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    Cincinnati
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    Default

    Not sure if we had the correct clutch to start with. I know we were desperate and found one that fit. I suspect my driving "style" is tough on clutches (and other car parts). Anyhow, we have had no luck finding a replacement clutch, lightened flywheel and throw out bearing. These would seem to be standard replacement parts, no? But nothing at Beachman Racing, Sevens and Elans may have a lightly used semi-competition clutch available soon, I just emailed the newly resurrected Rocky Mountain Sports car place. Am I the only one wearing out clutches?
    '97 Caterham Super Sprint, 1700 Crossflow-sold
    '09 Birkin S3, Duratec-sold
    '03 Caterham Zetec track car

  4. #4
    Join Date
    Sep 2006
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    Southeastern Pa.
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    2,772

    Default

    Mike are you sure you are not using that third pedal as a "Dead Pedal"
    Mangia bene, Ridi spesso, Ama molto, Guidare veloce

    2000 Caterham Superlight #123
    1.8L VHPD Rover K Series
    2009 Caterham SV
    2.3L Cosworth Duratec

  5. #5
    Join Date
    Sep 2006
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    Southeastern Pa.
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    Default

    Mike will these work? I've purchased a few parts from these guys. Good service. Tom

    https://www.burtonpower.com/catalogs...q=zetec+clutch
    Last edited by yellowss7; 04-08-2019 at 10:16 AM.
    Mangia bene, Ridi spesso, Ama molto, Guidare veloce

    2000 Caterham Superlight #123
    1.8L VHPD Rover K Series
    2009 Caterham SV
    2.3L Cosworth Duratec

  6. #6
    Join Date
    Oct 2006
    Location
    Cincinnati
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    Default

    Thx Tom, if I can't find what I need stateside, I will check Burton out. I was advised by RMMS that the standard clutch can handle 140 lbs torque tops, and my engine puts out a bit more than that.
    And please, never use the word "dead" when referencing my driving style.
    '97 Caterham Super Sprint, 1700 Crossflow-sold
    '09 Birkin S3, Duratec-sold
    '03 Caterham Zetec track car

  7. #7
    Join Date
    Oct 2006
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    Cincinnati
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    Default

    I guess what I need to know is what clutch/flywheel spec the Caterham 6 sp uses? It does not use the Ford Focus Zetec SVT spec clutch. Since the T9 transmission is popular in Caterhams, is the Caterham 6 sp a compatible spec with that (interchangeable)? If so, I should be able to Google an up-rated clutch/flywheel for the T9 and use it.
    '97 Caterham Super Sprint, 1700 Crossflow-sold
    '09 Birkin S3, Duratec-sold
    '03 Caterham Zetec track car

  8. #8
    Join Date
    Jan 2018
    Location
    Wellsboro, PA
    Posts
    47

    Default

    Hi, For what its worth, when I replaced the clutch in my 89 Esprit, I had went to an outfit called Buffalo Clutch. I used to work at as a mechanic for a drilling company up there and I had some issues with off the shelf clutches. Guys would just tear them up. I discovered this place a few years before when I worked as a mechanic at a small mom and pop shop. The owner, had a customer with a 427 Corvette that kept blowing the clutches up. He finally got sick of it and went to Buffalo Clutch and had a custom clutch built. I put it in and never had to replace it again.

    I called them and told them what I had and if it was possible to build a clutch for me.

    Here is what they built me..

    He offered me 3 choices, the original fiber disc, a 12 button cerametallic disc or 16 button cerametallic disc. I had them put 16 cerametallic buttons on the disc. 8 per side. He explained that the 16 would engage a lot smoother vs. the 12. The disc is 9 inch by the way and 8.5mm thick.

    They also rebuilt the pressure plate, all for $288!

    I'm sure they can do whatever you would like. They are very easy to work with and can do anything related to clutch's and brake linings.

    716-892-2828
    Kenny
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  9. #9
    Join Date
    Feb 2009
    Location
    The Frozen Northeast
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    If it helps i have a performance (not race) clutch from Clutch Masters in my car.... (stock duratec, T9, aluminum flywheel)
    but my driving doesn't match yours.

  10. #10
    Join Date
    Oct 2006
    Location
    Cincinnati
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    Default

    Thx Paul, the combo of SVT and 6sp Caterham transmission seems to create a bit of a unicorn system. And your T9 compatible clutch, etc., definitely doesn't fit. Josh, at the newly reconstituted Rocky Mtn Motorsports/USA Caterham suggested Raceline in the UK. So I contacted them and they are checking their stock, etc. They at least knew exactly what I needed.

    Yes, I am afraid my driving style takes a toll on my car....

    The fact that replacement clutches are a seldom visited issue seems to be another example of how these light weight cars are easy on "consumables" (tires, brakes, etc.).
    '97 Caterham Super Sprint, 1700 Crossflow-sold
    '09 Birkin S3, Duratec-sold
    '03 Caterham Zetec track car

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