Honda-SOHC

SOHC.co.uk Forums => CB500/550 => Topic started by: Glynnrg on July 08, 2017, 04:08:36 PM

Title: Oil leak
Post by: Glynnrg on July 08, 2017, 04:08:36 PM

Seem to have oil weeping from this nut on the back of my 550f can anyone tell me what it does?

Title: Re: Oil leak
Post by: hairygit on July 08, 2017, 04:35:50 PM

It's your camchain tensioner.

Title: Re: Oil leak
Post by: Glynnrg on July 08, 2017, 04:58:48 PM

Thanks:)

Title: Re: Oil leak
Post by: Glynnrg on July 08, 2017, 07:14:26 PM

Not good then as it doesn't seem to tighten just spins round and round

Title: Re: Oil leak
Post by: hairygit on July 08, 2017, 07:40:35 PM

Try a replacement nut first before getting too panicky, seem to remember it's a normal M6 nut.

Title: Re: Oil leak
Post by: Glynnrg on July 08, 2017, 07:46:04 PM

It's not the nut spinning it's the whole bolt  :'(

Title: Re: Oil leak
Post by: hairygit on July 08, 2017, 08:11:58 PM

Ah, that is not good news, head off job to replace it, and not a cheap part to buy either. One bonus is you can do it with the engine in the frame.

Title: Re: Oil leak
Post by: Bryanj on July 08, 2017, 08:28:01 PM

If that nut is spinning your cam chain tensioner is not working and bad wear results, usually caused by a previous numpty using a screwdriver in the slot to try and force the tensioner to work---its only there to position the tensioner on rebuild.

Sometimes the tensioner mechanism can be fixed as long as the teeth are not broken

Title: Re: Oil leak
Post by: Glynnrg on July 08, 2017, 09:14:20 PM

Thanks for the advice even tho you are bearers of bad news