Main Bearing Colour Codes
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Please can you post items for sale or wanted in the correct For Sale section. Items / bikes for sale here will be removed without warning. Reasons for this are in the FAQ. Thanks
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magg
- Senior Member
- Posts: 1916
- Joined: Mon Sep 20, 2010 11:55 pm
- Bike owned: VFR400
- Location: Blue Mountain NSW Australia
Main Bearing Colour Codes
Anyone else noticed that contradiction between the tables in the service manual and the parts manuals. The parts manual table is correct, if the shell thickness listed in the service manual is used to calculate the clearances, not so for the table in the service manual.
A further discrepancy is that the oil clearances calculated when using the correct table, are tighter than specified in the service manual. Calculated oil clearance is 0.014mm, spec is 0.025-0.049mm.
Interestingly, rod bearing code tables in parts and service manuals agree and calculated oil clearance is 0.032mm, spec is 0.028-0.052mm.
A further discrepancy is that the oil clearances calculated when using the correct table, are tighter than specified in the service manual. Calculated oil clearance is 0.014mm, spec is 0.025-0.049mm.
Interestingly, rod bearing code tables in parts and service manuals agree and calculated oil clearance is 0.032mm, spec is 0.028-0.052mm.
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Yakama
- Site Supporter
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magg
- Senior Member
- Posts: 1916
- Joined: Mon Sep 20, 2010 11:55 pm
- Bike owned: VFR400
- Location: Blue Mountain NSW Australia
Re: Main Bearing Colour Codes
I mention this as a warning for those considering future purchases from G-force Performance, to avoid ordering the wrong shells. Does not explain the tighter than spec oil clearance.