Honda-SOHC

SOHC.co.uk Forums => CB350/400 => Topic started by: McCabe-Thiele (Ted) on September 01, 2021, 05:40:14 PM

Title: 8 Green "O" rings but where do they go?
Post by: McCabe-Thiele (Ted) on September 01, 2021, 05:40:14 PM

The gasket set that came with my bike has a nice bag of rubber type "O" ring seals but I am a tad confused about the eight green ones.

The manual shows them under the valve guides (with nice valve seals for the inlets) but I can't see where the green ones go unless they are fitted in place when the guides are pressed in.

So is that where  they go please?

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(https://live.staticflickr.com/65535/51416765037_ee9f9b2ccb_h.jpg) (https://flic.kr/p/2mkwmUV)Gasket set seals (https://flic.kr/p/2mkwmUV) by Macabe Thiele (https://www.flickr.com/photos/187487200@N03/), on Flickr

Title: Re: 8 Green "O" rings but where do they go?
Post by: Athame57 on September 01, 2021, 06:15:59 PM

I wonder it they are tappet inspection cover O rings....are they big enough?

Title: Re: 8 Green "O" rings but where do they go?
Post by: McCabe-Thiele (Ted) on September 01, 2021, 06:45:24 PM

Quote from: Athame57 on September 01, 2021, 06:15:59 PM

I wonder it they are tappet inspection cover O rings....are they big enough?

There are a set of those not in the pictur much larger.
The green things are about 12 mm in diameter.

Title: Re: 8 Green "O" rings but where do they go?
Post by: Nurse Julie on September 01, 2021, 06:47:51 PM

They are silicone O rings for under the valve guides. You only fit them if you have new guides inserted.

Title: Re: 8 Green "O" rings but where do they go?
Post by: McCabe-Thiele (Ted) on September 01, 2021, 07:22:08 PM

Quote from: Nurse Julie on September 01, 2021, 06:47:51 PM

They are silicone O rings for under the valve guides. You only fit them if you have new guides inserted.

Wow that's a very thorough design - usually an interference fit is enough to keep the oil out.