SOHC.co.uk Forums > CB500/550
CB550k1 US Import - UK registration
K2-K6:
Note;- you can buy Helicoil in longer length if that's more suitable to match original orientation of machining, 2.0 X instead of 1.5.
juitz:
--- Quote from: K2-K6 on December 14, 2022, 09:31:20 PM ---Note;- you can buy Helicoil in longer length if that's more suitable to match original orientation of machining, 2.0 X instead of 1.5.
--- End quote ---
Good stuff! I'll buy a kit today and order a longer length one. I was a bit confused when looking yesterday as all I could see where std ones but found the 2D, 3D options 👍
juitz:
Hi all
Think I've got the case thread issue sorted with a helicoil. Need to get a 90mm length bolt but using a cut down 100mm one for now.
Anyway, have done my first plastigaug measurement on some of the crank journals where I have purchased new shells as per my measurements. From left to right on bottom casing as sitting on the bike I took two measurements.
brown at journal pos 1 = 0.05/0.063 then 0.038/0.063
Yellow at journal pos2 = 0.05 then 0.038/0.05
Green at journal pos4= 0.05 then 0.038
The pos3 and 5 are old shells where I think I need yellows.
The limit is 0.08mm but standard is 0.018mm to 0.048mm.
Should I stick with the shells or go with another shell colour?
What I'm confused about is the original shells measured 0.038mm when I plastigauged them....could it be the cold weather and parts shrinkage?
Oddjob:
If the crank doesn't show any signs of wear and the crankcases look ok, eg shells haven't spun, they I'd stay with the colours that Honda fitted from the factory. But that's entirely up to you, never been a fan of plastigauge, far to easy to get contradictory results.
juitz:
Thanks Ken, Crank and cases look OK so will go with what I think I need from the measurements I took.
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