January 14, 201313 yr Hi Guys anyone out there got an old Datasheet from Rotax for the 280engine with the max. / min. Piston clearance, max piston ring gap and any other useful bits ?
January 14, 201313 yr I've got a service manual from Can Am and they state on the 280 motor that it is supposed to be .003"- .005" on the piston clearance. I will look later and get the rest of the info. I set mine up at .0025 basically a tight 2 and 1/2". That is on my TL 320.
January 14, 201313 yr From Peter Knight for 240cc, might be of some relevance ? Your In Box full ? Clearance min 0.07mm max 0.09mm (skirt) Squish 1.25mm - 1.50mm Edited January 14, 201313 yr by b40rt
January 15, 201313 yr @ b40rt what do you exatly mean with "in box full" and squish ? "In box" private message box. Squish - distance between piston and cylinder head at tdc. I needed that as I went from 240 to 250cc. If you do have to adjust the squish it can be done on a lathe as it is a centre plug hole. Ross
January 16, 201313 yr Author @ b40rt Hi Ross no need for me to change the squish (or combustion area) Yes the "In box" was full, its now almost empty
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