Author Topic: CB 750 rocker arms  (Read 1291 times)

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Offline Hondell

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CB 750 rocker arms
« on: June 22, 2005, 08:28:27 AM »
Hi All:

I have a pile of rocker arms from 72-75 vintage Cb750's that have "voids or scratches?" on the foot (where it rubs the cam) that look like they exceed the case hardening of the surface. These "scratches" are perpendicular to the cam running, so when the cam passes over them, the cam would not toch the softer metal. My question ...are these junk, normal casting flaws, usable or what?? Any one used arms in this condition?

Thanks
Rick
1972 Cb750 resto- 1972 Cb750 stoplight racer- 1972 Cb750 vintage touring - 1979 CBX- 1982 Kaw GPZ- 1968 Honda SS125A

Offline bryanj

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Re: CB 750 rocker arms
« Reply #1 on: June 22, 2005, 01:14:52 PM »
I thought hey were hard chromed and as long as the plating wasnt lifting they are OK
Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

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Offline MRieck

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Re: CB 750 rocker arms
« Reply #2 on: June 22, 2005, 04:36:05 PM »
You can see the plating go. They can be hard welded through Megacycle but new ones are cheaper. Are they good??? At least for hardwelding. ;)
Owner of the "Million Dollar CB"