Honda-SOHC

SOHC.co.uk Forums => CB500/550 => Topic started by: oldtuggie on August 03, 2020, 09:11:06 PM

Title: Cam chain tensioner seal
Post by: oldtuggie on August 03, 2020, 09:11:06 PM

1976 550
Hi
Has anyone had a problem with an oil leak from the cam chain tensioner bolt.
I have replaced the seal and the tensioner is new.
Has anyone used an o ring instead of the flat Honda seal

Title: Re: Cam chain tensioner seal
Post by: Bryanj on August 03, 2020, 09:22:07 PM

The soft alloy washer has always worked for me as long as you are using a flanged bolt and the surface on head is good and uncracked

Title: Re: Cam chain tensioner seal
Post by: oldtuggie on August 03, 2020, 11:33:03 PM

Thanks I will try that but I've just looked at the parts diagram and it is an o ring.
I used a seal that I got when I bought the bike as a project and was marked as the seal for the cam chain tensioner but it is a flat ring.
Not sure but it may be a seal for the tacho drive

Title: Re: Cam chain tensioner seal
Post by: Bryanj on August 04, 2020, 03:55:06 AM

O ring is on adjuster nut not top bolt

Title: Re: Cam chain tensioner seal
Post by: oldtuggie on August 04, 2020, 12:04:33 PM

Thanks
It is leaking from behind the adjuster nut I have fitted the wrong seal I will replace it with an o ring

Title: Re: Cam chain tensioner seal
Post by: Bryanj on August 04, 2020, 03:45:19 PM

Ah well you said bolt and that to me is the one at the top. Adjuster nut has O ring and plain washer