SOHC.co.uk Forums > CB350/400
Engine rebuild Parts list
Dolomite_:
My initial main clearance for the crankshaft measurements is below. Its the result of 32 - the measurement.
stator end on the left
0.01124mm 0.01632mm 0.01378mm 0.01378mm 0.01378mm
Crankcase codes are B A A A A
If im reading the chart correctly I would need 1 green 4 brown. Does that sound correct?
Rechecked it and it should be 1 BROWN and 4 GREEN. I dont think i could do all 5 brown, it would be too little clearance for the A marked ones.
Deano400:
When you say the clearance is 0.01124, do you mean the crank measured 31.98876?
McCabe-Thiele (Ted):
Just looking at the crank case codes B A A A A
I would expect B (number one) to need the thickest shell i.e. probably Brown the A's probably all Green as a starting point.
Then be guided by Plastigauge clearances.
I do not understand your posted measurements - the second one looks out of place though.
Others here will have more reliable advice as I am a relative novice
Dolomite_:
--- Quote from: Deano400 on March 11, 2024, 05:27:29 PM ---When you say the clearance is 0.01124, do you mean the crank measured 31.98876?
--- End quote ---
Yeah, the figures I gave are just the clearance, so 32 - whatever the measurement was.
The 2nd measurement was a bit odd but the measurements I got from measuring it in a few places was 31.98368mm 3 times.
The way I read the chart was like this. First code is B so the crankcase allowance row B, then the clearance is 0.01124mm or 0.011mm so its the - 0.010 to 0.020 column so BROWN.
Actually reading it out loud and typing it, it should be 1 BROWN 4 GREEN.
I'll order 1 set of green and 1 set of brown and measure with plastigauge.
Deano400:
Ok, from the measurements it's 1 Brown, 4 Green.
Like you say order a set and plastigauge to check.
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