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Crankshaft bearing selection bulletins/ADVICE NEEDED

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AshimotoK0:
Trying to sort out new bearing shells for my 750K0 and dug out the old Honda Service Bulletins... I have probably put these on before but for anyone who has not seen them before,  here they are.

Ash

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AshimotoK0:
I think the diagram on page 4 of the first bulletin asnd similarly on page 2  of the second bulletin is wrong though because on the ones I have seen the weight code and journal size codes are each on opposite sides of the con-rod

AshimotoK0:
Looking at my crankshaft main bearing measurement 1 journal is coming out a green and the other 4 yellow but I have enough green shells NOS for the 5 journals. Will I get away with all greens if I take it carefully on first running the engine? Suppose this is one for Bryan, Oddjob and Trigger and other old sages  :D. I don't want to take the shells out of the sealed Honda  bags and Plasitigage them on the crank unless I am  fairly sure.

Ash

Bryanj:
Ash, I was told that Honda built them as if they had clearances found after a running in period so that all they needed was bedding in so even if you fitted all black and simply run it in with extra oil and filter changes I am 99.9% sure you will be OK. The engine in No 36 was built with all black and was OK all the time till it got burnt---would still love some time with the culprit and a megger

AshimotoK0:

--- Quote from: Bryanj on June 24, 2015, 09:28:03 AM ---Ash, I was told that Honda built them as if they had clearances found after a running in period so that all they needed was bedding in so even if you fitted all black and simply run it in with extra oil and filter changes I am 99.9% sure you will be OK. The engine in No 36 was built with all black and was OK all the time till it got burnt---would still love some time with the culprit and a megger

--- End quote ---

How about all greens then Bryan,  for mains instead of yellow, as described? I am using the crank & rods  you sold me yonks ago  from your infamous lock-up BTW  :D It measured up pretty nice.

Ash

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