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Top and bottom crank cases


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Hi all

 

I was told today that you can not mix and match top and bottom crank cases

 

They have to be used in matched pairs ?

 

Any truth in this ?

 

 

 

 

Sent from my iPhone using Tapatalk

They are machined as a pair when manufactured. I think you might be able to use mismatched cases but I would be very cautious when doing so. Assemble and make sure everything fits nicely, then slowly tightened things down as a dry fit while making sure everything rotates freely until completely secured and torqued.

 

I would recommend a matched set, but if you have to use a mis matched set, this is how I would proceed.

 

 

Sent from my iPhone using Tapatalk

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