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Big end bearing help

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Dolomite_:
My green and brown sets of big end bearings have arrived and I have measured them up, and once again its not going to be as easy as I hoped.

Im not sure if I've read it wrong but my con rods are C2 C2 C2 C2, my plastigauge measurements are 0.050mm 0.050mm 0.050mm 0.038mm. And to throw more confusion when measuring with the micrometer I get a clearance (32 - the diameter measured) of 0.0138mm 0.0163mm 0.0163mm 0.0087mm.

I measured with the brown bearings first and was surprised at the big gap. 0.050mm is too big what is the tolerance? The connecting rod chart is a bit more confusing than the main bearings chart.

Nurse Julie:
Did you measure the crank Lukas, it may well be very worn.

Dolomite_:

--- Quote from: Nurse Julie on April 11, 2024, 07:20:07 PM ---Did you measure the crank Lukas, it may well be very worn.

--- End quote ---

If I'm reading the wear tolerance on the graph correctly, the wear is within the tolerance. All below 0.016mm

Deano400:
When you say 'my con rods are C2 C2 C2 C2', is the C and 2 on either side of the conrod or have you got the Cs from the crank?

Dolomite_:

--- Quote from: Deano400 on April 11, 2024, 08:07:07 PM ---When you say 'my con rods are C2 C2 C2 C2', is the C and 2 on either side of the conrod or have you got the Cs from the crank?

--- End quote ---

Yes, the C and 2 are on either side of the conrod, I don't know if they're relevant to the graph. My web codes are 1 1A 1A 1A 1A and the crankcase codes are BAAAA.

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