Its time for crank updates
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- Joined: Wed Mar 10, 2021 10:41 pm
No it only had mag on the drain plug and it had very little metal or sludge during is life. The water was most through the intake not in the oil. We ran maxima and Repsol oil with most a Scott's filter and was change about every two or three races. I have another crank vixen to come out of another three year race motor and I'll send you this crank too.
Here is the weird part. Looking at the side of the clutch side crank half there are 2 burned spots with a brown stain smearing down the crank. I cleaned up the spots and sure enough its a raised area from micro cracking. Ive seen micro cracking in a lot of cranks but none quite like this. Im replacing this half for safeties sake.
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- Posts: 0
- Joined: Wed Mar 10, 2021 10:41 pm
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- Posts: 0
- Joined: Wed Mar 10, 2021 10:41 pm
There might be 2 type of failure modes. One where the cage breaks apart and jams up the rollers causing instant death. The other being the common one where the cage wears the grooves in the rod and the fatigue causes whats left of the rolling surface to spall and flake off the surface. Which would explain why some fill the frame/oil filter with metal flake for several hours while other just sieze up like this one. Of course it really doesnt matter nowadays.
Here are the part numbers for the z400 bearing.
09263-35035-0B0 original
09263-35044-0B0 newer
09263-35047-0B0 latest
it looks like they have been using different types of coating over the years on the cages . The latest ones must be using silver as the price is going way up. the last one i bought was $70.
09263-35035-0B0 original
09263-35044-0B0 newer
09263-35047-0B0 latest
it looks like they have been using different types of coating over the years on the cages . The latest ones must be using silver as the price is going way up. the last one i bought was $70.