SOHC.co.uk Forums > CB750
New Main and Big End Bearing Shells
AshimotoK0:
--- Quote from: royhall on May 24, 2016, 07:08:30 AM ---Whilst there's no facility for regrinds you can have the journals micro polished. Not sure who does it, but Rick Partington of Classic Bike had the 400 he was building done. May not need it though.
--- End quote ---
I do have a spare (bare) crank that I got miked up by my 'miking' expert and the journals were all good. Sadly he passed away last summer, very suddenly. Think it 'owes me the 'ubiquitous' 25 quid (it was off a K7 but all cranks basically the same, up to the auto), but your crank is probably recoverable anyway by the sounds of it . Yes that article by Rick Partington in CB was interesting .. the kind of article they should be doing rather than one I read on bead blasting ..where, at the end, they basically told you in CMM to give it to the experts (and pay an enormous amount of money). That mag went sadly downhill when Rod Gibson passed away :'(
BOT are you guidance on this, IMHO (Bryan, Oddjob Trigger ;D ;D ;D ;D)
ginger_jim:
--- Quote from: hairygit on May 24, 2016, 07:47:49 AM ---Before completely giving up on the can, give S.E.P. in Kegworth a call. I gave seen them repair cranks that look like ploughed fields by submerged argon arc welding the journals, then grinding back to original spec, and the crank is then good for many years to come. Chances are the journals on your cam may respond to the same treatment, and may prove easier and cheaper than trying to source a replacement.
Sent from my X6pro using Tapatalk
--- End quote ---
+1 sending to SEP, they will provide the shells too.
AshimotoK0:
Bryan, Oddjob Trigger
royhall:
--- Quote from: AshimotoK0 on May 24, 2016, 08:58:42 AM ---
--- Quote from: royhall on May 24, 2016, 07:08:30 AM ---Whilst there's no facility for regrinds you can have the journals micro polished. Not sure who does it, but Rick Partington of Classic Bike had the 400 he was building done. May not need it though.
--- End quote ---
I do have a spare (bare) crank that I got miked up by my 'miking' expert and the journals were all good. Sadly he passed away last summer, very suddenly. Think it 'owes me the 'ubiquitous' 25 quid (it was off a K7 but all cranks basically the same, up to the auto), but your crank is probably recoverable anyway by the sounds of it . Yes that article by Rick Partington in CB was interesting .. the kind of article they should be doing rather than one I read on bead blasting ..where, at the end, they basically told you in CMM to give it to the experts (and pay an enormous amount of money). That mag went sadly downhill when Rod Gibson passed away :'(
BOT are you guidance on this, IMHO (Bryan, Oddjob Trigger ;D ;D ;D ;D )
--- End quote ---
I do believe the F2 crank is different?
AshimotoK0:
[ Guests cannot view attachments ]
--- Quote from: royhall on May 24, 2016, 03:24:44 PM ---
--- Quote from: AshimotoK0 on May 24, 2016, 08:58:42 AM ---
--- Quote from: royhall on May 24, 2016, 07:08:30 AM ---Whilst there's no facility for regrinds you can have the journals micro polished. Not sure who does it, but Rick Partington of Classic Bike had the 400 he was building done. May not need it though.
--- End quote ---
I do have a spare (bare) crank that I got miked up by my 'miking' expert and the journals were all good. Sadly he passed away last summer, very suddenly. Think it 'owes me the 'ubiquitous' 25 quid (it was off a K7 but all cranks basically the same, up to the auto), but your crank is probably recoverable anyway by the sounds of it . Yes that article by Rick Partington in CB was interesting .. the kind of article they should be doing rather than one I read on bead blasting ..where, at the end, they basically told you in CMM to give it to the experts (and pay an enormous amount of money). That mag went sadly downhill when Rod Gibson passed away :'(
BOT are you guidance on this, IMHO (Bryan, Oddjob Trigger ;D ;D ;D ;D )
--- End quote ---
I do believe the F2 crank is different?
--- End quote ---
[ Guests cannot view attachments ]
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version