Honda-SOHC

SOHC.co.uk Forums => CB350/400 => Topic started by: BrianC500 on October 03, 2016, 02:08:40 PM

Title: 1975 CB400/4 Shells
Post by: BrianC500 on October 03, 2016, 02:08:40 PM

Hi,

My crankcase is marked BBBBA. I need both Mains and big end shells. The crank has been checked and has minimal wear. Mains are 31.978mm, Big Ends 31.983mm. Can anyone tell me which would be the correct shells to go for please?

Title: Re: 1975 CB400/4 Shells
Post by: Laverda Dave on October 03, 2016, 02:26:31 PM

Hi Brian,

Try this link, it may help you, I had the same issue:

http://www.sohc.co.uk/index.php/topic,9538.msg68584.html#msg68584

There are also a few other links relating to bearing shells, use the 'Search' option on the specific forum, i.e CB350/400.

Dave

Title: Re: 1975 CB400/4 Shells
Post by: BrianC500 on October 03, 2016, 03:18:12 PM

Cheers Dave. I'l let you know how i get on

Title: Re: 1975 CB400/4 Shells
Post by: BrianC500 on October 03, 2016, 08:07:53 PM

I think I've worked this out correctly.....here goes

Mains measure 31.978mm, Big ends 31.983mm, Crankcase letters are BBBBA

Crankshaft is 1A 1A 1A 1A 1

Conrods are 2C 2C 2C 2C

I think I need Mains Green, Green, Green, Green, Yellow

Big ends Brown, Brown, Brown, Brown.

Could some very kind fellow forum member confirm that for me please?

Title: Re: 1975 CB400/4 Shells
Post by: BrianC500 on October 04, 2016, 12:35:27 PM

Brilliant. Thanks Oddjob. I can go spend some money now. Thanks Laverda120 for the link.

Title: Re: 1975 CB400/4 Shells
Post by: BrianC500 on October 23, 2016, 09:36:30 PM

I've found out that Yellow main bearing shells are now obsolete. Silvers are out of stock, cms only have one shell left. Can any other be used?

Title: Re: 1975 CB400/4 Shells
Post by: Trigger on October 24, 2016, 10:06:09 AM

You can just use the next size up

Title: Re: 1975 CB400/4 Shells
Post by: Chris400F on October 24, 2016, 01:09:24 PM

3 pairs of yellow available here and various other odd ones around (P/N 13318-333-003).
http://www.ebay.fr/itm/1-PAIRE-DE-COUSSINETS-VILO-NEUFS-JAUNE-HONDA-CB-350-400-FOUR-REF-13318-333-003/172177274003

Title: Re: 1975 CB400/4 Shells
Post by: BrianC500 on October 24, 2016, 08:45:42 PM

Cheers Trigger I had a feeling that might be the case. Thanks for the link Chris. 25euros per pair, not bad. CMS have just upped theirs to 25 euros per shell plus 15euros carriage.  :o I'll see which way my brother wants to go.

Title: Re: 1975 CB400/4 Shells
Post by: BrianC500 on October 29, 2016, 05:48:17 PM

Yellows arrived safely from France via ebay. Thanks for the link Chris400F. Only 3 greens to get from Mr Silver when they have them back in stock and I can get started.  ;D