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The spring pack on Reaper (2005 Night Train)'s comp wore out after 14 years and about 160,000 miles. It caused a hell of a rattling sound, and weird noises now and then on startup. The rest of the compensator components were fine, but I replaced the entire unit anyway.
Truely rare for Belville springs to go bad. Unlike a coil spring that can stretch or compress past it's elastic limit, Belville have little motion.
I have seen the welded unit broken apart on here once.
Seen similar system where I worked on NC machines that had auto tool changers. Tooling was held in by Belville springs pulling on a re-tension ****. They cycled 100s of time a day for years.
Also, a comp really only smooths the impulses from a uneven firing v-twin. So no big deal. If it makes noise at idle, it's the 3 fingers a little rough. Hurts nothing.
Last edited by Jackie Paper; Sep 5, 2020 at 12:38 PM.
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