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Location: Michigan
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Porsche 917 question
What are the circled parts which appear to be attached to the driveshafts?
Counterweights? Vibration dampeners? 
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11-17-2009, 05:13 PM
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Non Compos Mentis
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917-style CV joints?
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11-17-2009, 05:41 PM
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Also used on 935, GT40, some formula cars (Formula Ford for instance) and of course...the Hillman Imp.
In different sizes.
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From November 2012; Precision Porsche Specialist Sussex UK, +44 (0)1825-721-205 2001-2012 Gerber Motorsport Inc. 206-352-6911 07.15.06 1996 Ducati 900SP. Suprisingly enough, it's red 08.16.09 1999 Kawasaki ZRX1100. Green. |
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11-17-2009, 06:00 PM
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Look like giant flex discs to me.
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11-17-2009, 06:12 PM
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Quote:
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11-17-2009, 06:38 PM
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I can't recall the name but I think they were used in conjunction with the universal joints to dampen the shaft speed variation that is inherent to the u-joints. Also guessing constant velocity joints with "constant" shaft speed were not strong enough for such applications?
PS Ok I remembered "guibo" but I think that just means a flex disc.
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83 911SC Targa Everything I say is my personal opinion, and has nothing to do with my team. Last edited by Won; 11-17-2009 at 07:00 PM.. |
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11-17-2009, 06:54 PM
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Just stole this definition
 , sums it up nicely"The guibo serves as an interface between the transmission and the driveshaft. Since the guibo is primarily made from rubber, it acts as a damper when shifting and engaging into gears, so that the transfer of power to the driveshaft is smooth and dampened, instead of abrupt and harsh." 917, abrupt and harsh, never!
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11-17-2009, 07:14 PM
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A couple of years ago, I sold a NOS Hillman Imp transaxle to a guy for use behind his Coventry Climax engine. Still had some cosmoline protectant on it after sitting around for almost 40 years. Don't remember the guibos though. Some Alfas used guibos to connect the trans output shaft to the driveshaft as well...
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11-17-2009, 07:23 PM
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Guibo is the word. We used to call them rubber doughnuts.
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11-18-2009, 03:07 PM
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