Honda-SOHC

SOHC.co.uk Forums => CB350/400 => Topic started by: adriangsmith on June 12, 2017, 08:28:27 AM

Title: 400/4 'O'ring list or kit
Post by: adriangsmith on June 12, 2017, 08:28:27 AM

Hi All,
currently rebuilding a 75 400/4 engine.
A top end strip so far shows no problems apart from rock hard 'O' rings throughout.
Does anyone have a list or sell a kit of the 'o'rings that are not included in the standard full gasket kit?

Cheers

Adrian

Title: Re: 400/4 'O'ring list or kit
Post by: MikeSB6 on June 12, 2017, 09:54:50 AM

Hello,

   thought I'd jump on the bandwagon here and ask if anyone knows the size of the O-rings on the carburettor  connecting stubs (the black plastic double ended spigots between the carbs)?,

        Cheers, MikeJ

Title: Re: 400/4 'O'ring list or kit
Post by: mike the bike on June 12, 2017, 12:02:55 PM

You could buy a kit of assorted O rings from Screwfix.   I bought a kit for work and I'm always raiding it for the bike.

Title: Re: 400/4 'O'ring list or kit
Post by: andut on June 12, 2017, 04:24:20 PM

Adrian,

I made a list of O rings not in the std gasket set a couple of years back as below;

91301-426-010   5x2.4   Clutch pressure plate (triangular plate)  pin
91317-171-003   6x1.7   Cam tensioner adjuster bolt
91315-PY3-000   16.6x2.4   Main oil gallery front drain plug
94608-4000   19.4x2.8   Main oil gallery side drain plug
91319-300-000   13x2.5   Main oil gallery push in side plug
91329-590-003   16.5x2   Oil pick up pipe
91354-371-000   23 x ??           Dipstick
31206-402-008   60x1.4   Starter motor brushes cover
91312-MG7-003   24.4x3.1   Starter / crankcase
35751-333-003         Neutral switch
Carb O rings / seals - Viton seals available from ebay (user ID Gerben ??)
Oil pump seals  - Nurse Julie on this site sells an oil pump kit

Hope that helps !

Title: Re: 400/4 'O'ring list or kit
Post by: adriangsmith on June 12, 2017, 04:29:16 PM

Perfect Andut,
Just what i was After!
Theres nothing worse when ordering from DSS and you think you have everything and find that one crucial 'o' ring missing from the gasket kit that holds your build up for a week.
Thank you very much! :-)

Title: Re: 400/4 'O'ring list or kit
Post by: mike the bike on June 12, 2017, 05:55:00 PM

There was more than one crucial O rings missing; quite a few crucial O rings.

Title: Re: 400/4 'O'ring list or kit
Post by: MikeSB6 on June 12, 2017, 10:24:29 PM

Many thanks, Andut,

       Cheers,Mike