Author Topic: 1975 CB400/4 Shells  (Read 2083 times)

Offline BrianC500

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1975 CB400/4 Shells
« 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?
Previous bikes CB175K6, GS550EZ, GL1100

Offline Laverda Dave

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Re: 1975 CB400/4 Shells
« Reply #1 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
1976 Honda 400/4
1977 Rickman Honda CR750
1999 Honda VFR 800FX
1955 750 Dresda Triton
1978 Moto Morini 350 Sport
1978 Honda CB400/4 'Rat' bike
1982 Laverda 120 Jota

Offline BrianC500

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Re: 1975 CB400/4 Shells
« Reply #2 on: October 03, 2016, 03:18:12 PM »
Cheers Dave. I'l let you know how i get on
Previous bikes CB175K6, GS550EZ, GL1100

Offline BrianC500

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Re: 1975 CB400/4 Shells
« Reply #3 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?
Previous bikes CB175K6, GS550EZ, GL1100

Offline BrianC500

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Re: 1975 CB400/4 Shells
« Reply #4 on: October 04, 2016, 12:35:27 PM »
Brilliant. Thanks Oddjob. I can go spend some money now. Thanks Laverda120 for the link.
Previous bikes CB175K6, GS550EZ, GL1100

Offline BrianC500

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Re: 1975 CB400/4 Shells
« Reply #5 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?
Previous bikes CB175K6, GS550EZ, GL1100

Offline Trigger

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Re: 1975 CB400/4 Shells
« Reply #6 on: October 24, 2016, 10:06:09 AM »
You can just use the next size up

Offline Chris400F

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Re: 1975 CB400/4 Shells
« Reply #7 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
« Last Edit: October 24, 2016, 02:18:28 PM by Chris400F »

Offline BrianC500

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Re: 1975 CB400/4 Shells
« Reply #8 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.
Previous bikes CB175K6, GS550EZ, GL1100

Offline BrianC500

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Re: 1975 CB400/4 Shells
« Reply #9 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
Previous bikes CB175K6, GS550EZ, GL1100

 

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