Grand Prix 500
Main Motorcycle: Bonneville
Join Date: Oct 2010
Other Motorcycle: Honda Postie
Extra Motorcycle: Suzuki DL650 V Strom
|Air Cooled Twins Technical Talk Technical Talk for Hinckley Triumph Twins: Bonneville, T100, Speedmaster, America, Thruxton, and Scrambler.|
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I wonder how the factory determines the shims required when they build up the engines? It would seen to be a time consuming and fiddly task if done by hand. Anybody know how they do it?
your exhausts measure 0.03mm over spec.
0.03mm, thats one thou in Her Majesty's Sensible System of weights and measures.
I would not pulling apart the valve train to chase one thou as measuring with feelers does have a certain amount of error, probably in the region of one thou. if it was two thou (0.05mm) thats a different story, I would shim it out
what was the temperature when measured? was the engine still warm or stone cold?
I would leave it for a few thousand kilometers and recheck, chances are it will close up
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