SOHC.co.uk Forums > CB500/550

Head is leaking oil again. Again.

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Brian.:
5 x 2.4 according to the Parts book in Aladdin's Cave on here.

I used a slightly bigger thickness Viton O rings on my CB550K2, with an aftermarket head gasket from David Silvers, and it never leaked again.

Hope this helps,
Brian.

deltarider:

--- Quote from: Brian. on August 24, 2021, 02:18:31 PM ---5 x 2.4 according to the Parts book in Aladdin's Cave on here.

I used a slightly bigger thickness Viton O rings on my CB550K2, with an aftermarket head gasket from David Silvers, and it never leaked again.

Hope this helps,
Brian.

--- End quote ---
How many km since?

Brian.:

--- Quote from: deltarider on August 24, 2021, 03:36:31 PM ---
--- Quote from: Brian. on August 24, 2021, 02:18:31 PM ---5 x 2.4 according to the Parts book in Aladdin's Cave on here.

I used a slightly bigger thickness Viton O rings on my CB550K2, with an aftermarket head gasket from David Silvers, and it never leaked again.

Hope this helps,
Brian.

--- End quote ---
How many km since?

--- End quote ---
After doing the work I did about 2400 miles up until I sold it, I think that'd equate to about 3700 km.

JezzaPeach:
Julie’s set of 5 o rings sorted my oil pump. Bone dry now👍

alexdecker:

--- Quote from: Brian. on August 24, 2021, 02:18:31 PM ---5 x 2.4 according to the Parts book in Aladdin's Cave on here.

I used a slightly bigger thickness Viton O rings on my CB550K2, with an aftermarket head gasket from David Silvers, and it never leaked again.

Hope this helps,
Brian.

--- End quote ---

Hey Brian

So you used a slightly thicker version than the 5x2.4? Or did you use the actual 5x2.4 sizes?

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