SOHC.co.uk Forums > CB500/550
CB550k1 US Import - UK registration
Bryanj:
To be honest, from the pics you posted they look contaminated by dirty oil infrquently changed, will br expensive but i would change them all. What do the mains look like?
juitz:
--- Quote from: Bryanj on November 27, 2022, 12:32:31 PM ---To be honest, from the pics you posted they look contaminated by dirty oil infrquently changed, will br expensive but i would change them all. What do the mains look like?
--- End quote ---
Mains for example, these have scuffing .
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Sesman:
Interesting exchange this one. My cases were stamped CCCCC. The crank webs were marked A1 and the rods D2.
All journals were in perfect unmarked condition. From this I deducted: Mains C1; big ends A2. All rods being weight ‘D’. The engine was untouched, as far as my forensic skills can tell, and the mileage being confirmed as 17k miles.
Some queries: how unusual is it have such repeatability in the cases, mains and big ends ID? Did Honda get better at manufacturing tolerances or just more relaxed about machining and weight tolerances? Motor is a 1977 F2.
Oddjob:
In that case you'd be correct with 6 greens and 2 browns for the rods. The crank as I'm sure you've worked out are all yellows. Hard to find these days.
I have some if you need them, got more than 10 IIRC.
Oddjob:
--- Quote from: Sesman on November 27, 2022, 02:14:34 PM ---Interesting exchange this one. My cases were stamped CCCCC. The crank webs were marked A1 and the rods D2.
All journals were in perfect unmarked condition. From this I deducted: Mains C1; big ends A2. All rods being weight ‘D’. The engine was untouched, as far as my forensic skills can tell, and the mileage being confirmed as 17k miles.
Some queries: how unusual is it have such repeatability in the cases, mains and big ends ID? Did Honda get better at manufacturing tolerances or just more relaxed about machining and weight tolerances? Motor is a 1977 F2.
--- End quote ---
Luck of the draw TBH Phil, nice when it happens but it's rare TBH to see it..
Spot on with your deductions.
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