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Old Jan 08, 2013, 11:42 AM
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Joined Nov 2000
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I have used white car paint polish as lapping on the crank in the case.
It's fine, water soluable and fairly benign as to damaging the casting surfaces Slow work though. Chucking it in an variable speed drill can work well.... when used with intelligence..
Effectively sealing the engine can be by using 'Threebond 1211' sealant.
Very thin , watery sillycone type goop. Peels off in one piece even when microns thick.. V nice stuff.
Universally used in Factory race motorcycle engines..
~$20 a tube tho and not universally available.
Don't be too perf greedy, as TD cranks shear at ~25k rpms... far earlier if the socket isn't perfect.
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