 /6 Conversion Clutch Question |
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| patssle |
 Apr 14 2014, 02:47 PM
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#1
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Senior Member  Group: Members Posts: 981 Joined: 28-August 09 From: Houston, TX Member No.: 10,741 Region Association: None  |
For my 3.0L SC motor with Weber carbs to a 901 transmission - I'm planning on a new Kennedy 228mm flywheel and 228mm Stage II pressure plate.
My existing 215mm 914 4 spring clutch disc still has life left on it - can this be used at all? I've seen some notes that 215mm can be used on 228mm flywheels...is this true or do I need the 228 with 6 springs for a /6 engine? Thanks. |
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| ClayPerrine |
Apr 14 2014, 03:33 PM
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Life's been good to me so far..... Group: Admin Posts: 15,541 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille 
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QUOTE(patssle @ Apr 14 2014, 03:47 PM)  For my 3.0L SC motor with Weber carbs to a 901 transmission - I'm planning on a new Kennedy 228mm flywheel and 228mm Stage II pressure plate. My existing 215mm 914 4 spring clutch disc still has life left on it - can this be used at all? I've seen some notes that 215mm can be used on 228mm flywheels...is this true or do I need the 228 with 6 springs for a /6 engine? Thanks. You can't use a 215mm disk with a 225mm flywheel and pressure plate. To use a 215mm clutch, you have to have an early 911/914-6 flywheel. But that won't fit a 3.0SC motor. You can get an adapter flywheel from Kennedy engineering. But you would have to use the 215mm pressure plate with the adapter flywheel. |
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| Mark Henry |
Apr 14 2014, 04:17 PM
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
A 3.0 to 901 conversion uses a stock 911 flywheel, a conversion ring (that also has the starter gear) and a heavy duty late bus 228mm pressure plate. The disc is also bus, but it's not much different from a 911/914 215mm disc.
The 4 spring on a stock /4 has clearance issues with the crank bolts when you resurface the flywheel, it may have clearance issue with the 3.0 crank bolts as well. A 6 spring 215mm disc might work, but compared to the price of the conversion kit its cost is trivial, so I personally wouldn't bother reusing the old disc. I'd use a stock 228mm bus disc...in fact that is what I'm using. BTW I also made my own conversion ring. |
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| patssle |
Apr 14 2014, 06:14 PM
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#4
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Senior Member Group: Members Posts: 981 Joined: 28-August 09 From: Houston, TX Member No.: 10,741 Region Association: None |
Great, thanks guys. I was wondering why I had read I can use the /4 215mm clutch - wasn't making sense.
QUOTE(Mark Henry @ Apr 14 2014, 02:17 PM) A 3.0 to 901 conversion uses a stock 911 flywheel, a conversion ring (that also has the starter gear) and a heavy duty late bus 228mm pressure plate. The disc is also bus, but it's not much different from a 911/914 215mm disc. It's not much more money just to get a brand new flywheel that comes with the ring gear - that way don't have to resurface the old one. |
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