SOHC.co.uk Forums > CB350/400
Not fully understanding Big End Bearings & colour codes.
K2-K6:
Although the above picture is inaccurate as the thimble scale shows 0.284 ish and the vernier shows 0.009 ::)
You'd think they'd get the illustration right if they are going to demonstrate it wouldn't you ;D
waffey:
Just as I thought, I'll take it to an engineering firm for measurement.
thanks all
waffey:
Oddjob, I did try, sat in the sun, in the shade, petrol all over, magnifying class, photos I just cant see them.
Why is it never easy! :'(
waffey:
Oddjob,
do i assume these markings on the conrods refer to the bearings i.e. 3c= GREEN, therefore I just need to verify clearance before replacing them?
McCabe-Thiele (Ted):
I believe the C is just the weight code - 3 gives you the Con rod allowance on the left of the tables- now you need to measure the corresponding crankshaft jounal to find out the Crank pin allowance to find the correct colour code in the tables. Others will confirm if my understanding is correct.
Just to confuse the tables for Mains & Big ends are arranged differently so check the con rod table.
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