SOHC.co.uk Forums > CB500/550
500 ride again project
Trigger:
Those doggies ( Forks) look pretty good to me Oddjob. I think you have been looking at too many NOS parts for too long ;D ;D ;D
K2-K6:
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Safo:
If they are like that when they arrive, think I will be happy cos they look 10 times better than whats in there now
Safo:
I see what you mean oddjob, you mentioned drum out of line?
matthewmosse:
I have a cb500/4 that has this issue on 1st and 2nd, what I am wondering is what is the possibility of getting the forks built up with weld - grinding back to profile and re case hardening them... we case hardened tools in collage but were working to much looser tolerances of 1/4 mm. That's obviously way too crude for an engine. I'm kind of curious to know if anyone here has experience of a engineering shop and could offer insight into how they avoid oxidation losses of the steel when heating during case hardening, plus distortion - barring those factors it's something one might attempt at home, given a kiln and accurate pyrometer, plus a lathe / mill. A bit of a skill stretch for me but most of the kit is here and a dead selector fork is dead, no harm in trying to fix it, rather more of an issue is the groove thr fork runs in on the gear, that I imagine is rather harder to re machine. The dogs seem less prone to wear and rather harder to repair / higher risk. I guess the groove could be ground smooth at an oversize and the forks built up a bit to match..... Thinking long term here, supplies of new bits running out, good used bits likewise. My bike got well past 200,000 miles before the box succumbed, others might not last so long. I would think getting new bits made would be prohibitive cost wise.
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