SOHC.co.uk Forums > CB500/550
CB550k1 US Import - UK registration
juitz:
Thanks, its what I thought.
I'll take to a local engineering shop to get it skimmed.
juitz:
I guess the obvious question is, what is the maximu amount allowed to be skimmed?
I think around 1mm from some other posts?
Bryanj:
Skimming the head is not too problematic but carefull with the block as skiming reduces the depth of the O ring grooves, which is actualy advantageous as head gaskets are thicker than they used to be so for standard blocks thicker O rings are needed.
You may find the valve timing very slightly out due to chain length
Oddjob:
--- Quote from: Bryanj on February 05, 2023, 06:00:42 PM ---Skimming the head is not too problematic but carefull with the block as skiming reduces the depth of the O ring grooves, which is actualy advantageous as head gaskets are thicker than they used to be so for standard blocks thicker O rings are needed.
You may find the valve timing very slightly out due to chain length
--- End quote ---
It would be the block surely Bryan? the recess for the o-ring is in the block, the head has just a hole so skimming it would make no difference to the o-ring thickness.
Bryanj:
Ken i did say carefull with the BLOCK
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