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Joe Drabicki Blackhawk Kart Guru in Florida
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Hey Guys! Horstman Rev-Grip dry clutches were a thing back in the 70s and 80s. I just sold an outboard spider hub to Bob Alexander. Bob, please post the photo you sent me. I can't transfer it from my phone. The hub has a McCulloch taper and uses a half moon key to lock it to the crankshaft. The center of the hub (hub on right in photo) is larger diameter than the center of the hub on the left (assembled hub). We can't identify what the hub on the right is used for, say maybe a drum with 15T or 16T? I emailed Horstman Clutches about 30 minutes ago. Maybe they can ID it in a couple days. In the meantime, can anyone help ID this clutch spider hub? Kind Regards, Joe |
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Bob Alexander NW Ohio
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Joe; Here is the picture. Bob Attachment: email.jpg (Downloaded 96 times) |
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steveohara
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That hub is used on the oil bath version of the clutch. The bearing in the aluminum cover rides on the OD of the side that does not have the snap ring groove. The nut that holds the hub on the crank goes inside the boss. Steve O'Hara |
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Bob Alexander NW Ohio
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Thanks Steve; But this one seems to be shaped the same as my other clutch spiders for a backer plate and snap ring. Bob Attachment: email2.jpg (Downloaded 70 times) |
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Kurt Bogerman C8H18 +12.5 O2 -> 8 CO2 +9 
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I found an ad from Karter News, December 1970, at this web page: http://www.lostenduros.com/?page_id=678 Maybe this sheds some light on things? Attachment: dec70k.jpg (Downloaded 68 times) |
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Bob Alexander NW Ohio
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I could see it as an inboard slip-o-matic clutch. Thanks... Bob Alexander |
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