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Kirkham Motorsports

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Old 09-26-2019, 03:29 PM
lal Naja's Avatar
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Join Date: Oct 2003
Location: Golden Isles, GA
Cobra Make, Engine: Butler Cobra. 350 Chevy Engine, blueprinted, heads cc'd, ported, polished, manifolds matched, big valves, 1.6 roller rockers, TB Injected, mild cam, MSD crank trigger electronic ignition. TKO-600 transmission. XKE Jaguar rear. IFS by Fast Cars
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I'm very happy with my $135.00 Throwout bearing from Speedway motors. Installed on a TKO Transmission. However! I did have my first install fail within 2000 miles. I followed the instructions with care and accuracy, but it still failed. I was baffled and frustrated. I like the simplicity of the system so I decided to give it another try. So I pulled it and installed an identical new one, but this time I installed an adjustable pedal stop. I have a 7/8" master cylinder. I started with the pedal stop all the way out and with the engine running I tried to shift into gear with very little clutch movement and each time the gears crunched I adjusted the stop down a little more each time until crunching stopped and she smoothly went into gear. I was so suprised to discover that it took a quarter of the pedal stroke from my original setting to disengage the clutch. I then realized that I was over stressing the entire system, the throwout hydraulics and the clutch and I'm sure that the excessive movement of bearing cylinder was the cause of my failure. I love the micro clutch pedal movement and the very very low pedal pressure needed. It's almost as easy as my gas pedal. The car is such a pleasure to drive. 6000 miles now and no issue. So I'd highly recommend trying a pedal stop and adjusting till gear engages smoothly. I think you'll be pleasently surprised.
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