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Stuart turner R2 crankshaft repair

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Posted on Monday, July 15, 2013 - 10:22 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Hi all
Can any Stuart Turner buffs help me with a crankshaft problem i'm having with an R2 crankshaft.
The crank has a worn big end and i cannot separate the flywheels! I have even resorted to heat on the hexagon nuts,but nothing moves, what am I doing wrong.
I assume the nuts do undo and allow the flywheels to split? but 'by eck' they are tight.
Am i to continue on and if needed replace the nuts, and then if so where do I obtain them and are needle rollers available for the big end.
Realigning the crank is no problem as I have pressed and aligned many other cranks but not wanting to damage anything beyond repair, i'm seeking advise.
Secondly I would like to adapt the engine to pumped coolant, I have a pump from an R3, but is there a skew gear from an R3 a direct fit to my crankshaft to drive the pump?.
Finally,I have had the crank in bits for some time now and I have lost the positioning of some of the shims/spacers on either side of the crankshaft so could someone send me a picture of a complete crankshaft fully assembled,or even a sketch would be fine.
Thank you all for your help,and I hope someone can provide the information to allow me to get this lovely engine running again.

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