Backdate to Non-Omega Spring Clutch Lever?
 

I tried searching for this several times over the past couple months and I just can't seem to hit on the right terms. Has anybody done this and can confirm which parts are the best way to approach it? It looks like the clutch arm from a '72-'73 is what is the key? Should the same year cable be used as well? I believe the omega came along in '74 when they introduced the 2.7, so in this instance it appears we're limited to a couple years of producing the non-omega 915 clutch actuation. Not sure I like relying on available stock of early 70's parts in the event I need a replacement.......

What got me thinking about this is Wevo's mention of it in their cable bracket.

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Browsing Wevo's site is always a dangerous thing- nice stuff and makes your wallet thin real quick.

Car in question is the '79 SC with a '84 915 trans in it. The reasoning here is the omega spring setup seems like an extra system that I can remove to eliminate a potential failure point (and reason to carry spares) on the trans of the racecar. I have a racing clutch in it, but the effort is not high by any means even compared to a stock clutch, so I don't see a risk in removing the omega spring setup. The Kennedy lightweight clutch in my '87 has much more effort to it than the racing clutch in the '79. Hey, it's a racecar, be a man? :D

Thanks,
Kevin

The omega spring helps reduce the effort to release the clutch. If the spring is removed, then the pedal effort increases, either slightly or significantly (YMMV). The clutch cable bears the brunt of increased pedal effort; the stress on it increases which may or may not result in shorter service life for all clutch linkage parts (probably shorter life).

Sherwood

it also pulls the long lever to it's stop, which takes pressure off the short lever so the release fork isn't pulling on the throwout bearing.

Thanks for the advice. I do understand that the omega spring is providing an assist effect. But I sort of overlooked it's absence is also an additional load on the release bearing & fork. We know that the release fork is prone to breaking due to mostly age. Removing the assist would accelerate the fork fail as well as the release bearing.

I'd be more concerned with the fork and release bearing excessive loads than the cable. I say that because it would seem to me that there's a lot of people riding around with worn cables & shaft bushings that are making the cable work harder than it needs to. Cables seem pretty robust (and I always have a spare), as they suffer a lot of neglect/abuse. However a spare fork and release bearing is false security because i'd really prefer not to change that at the track if can be avoided and hence the reason to keep the spring. Stop being stupid and keep a spare omega if i'm worried about it failing, right?