Honda-SOHC

SOHC.co.uk Forums => CB500/550 => Topic started by: Mr Helicop on July 20, 2020, 10:43:08 PM

Title: Nut jammed in primary chain
Post by: Mr Helicop on July 20, 2020, 10:43:08 PM
Like an idiot I managed to drop the bike while on loose chipping, got it upright tried to restart and after a bit of a rattle the engine stopped dead. Anyway after a complete tear down I found a nut jammed in the primary chain - looks like a cylinder head nut to me and although I have had the head off in the past I know I have not dropped a nut so I can only assume that the nut was stuck somewhere in the lower crankcase for years and was only disturbed when the bike tipped over - all very strange but the good news is that it is all up and running with new primary chain, oil seals, cam chain etc, not a job I expected to be doing though.
Title: Re: Nut jammed in primary chain
Post by: K2-K6 on July 21, 2020, 08:05:06 AM
Oooh that's unlucky to get into there,  but also that it didn't happen with more revs going!

It does look like a head nut though. A lot of work for you and quite a close shave,  at least you've sorted it out now.
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