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SOHC.co.uk Forums => CB750 => Topic started by: billy192 on July 16, 2013, 08:50:13 AM

Title: Diff pistons
Post by: billy192 on July 16, 2013, 08:50:13 AM

this oil ring is on 2 and 3
(http://i1209.photobucket.com/albums/cc393/njwill1/new/Projects/CB750K6/Top%20end%20strip/IMG_0829_zps35d9db46.jpg) (http://s1209.photobucket.com/user/njwill1/media/new/Projects/CB750K6/Top%20end%20strip/IMG_0829_zps35d9db46.jpg.html)
and this oil ring is on 1 and 4
any ideas or does it not matter
(http://i1209.photobucket.com/albums/cc393/njwill1/new/Projects/CB750K6/Top%20end%20strip/IMG_0827_zps4a3d451d.jpg) (http://s1209.photobucket.com/user/njwill1/media/new/Projects/CB750K6/Top%20end%20strip/IMG_0827_zps4a3d451d.jpg.html)
and all 4 are 0.50 os

Billy

Title: Re: Diff pistons
Post by: Bitsa (Ralph Wright - RIP) on July 16, 2013, 09:58:40 AM

Hi Billy.
The earlier 750s came with one piece oil rings and later became the 3 piece ring.Personally I have not mixed them but I think they should be OK.Did you say you are getting a rebore?
In that case you will probably get all 3 piece rings.
Hope this helps
Bitsa

Title: Re: Diff pistons
Post by: billy192 on July 16, 2013, 10:40:27 AM

Yes rebore 0.75 four new piston kits new valves and springs