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Dirt Bike Mods & Maintenance
Crankshaft End Float
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[QUOTE="southwick_mx, post: 1440752, member: 128087"] In every two stroke engine I have ever rebuilt, the small end rod to piston side to side clearance has been way larger than the big end side to side clearance (which is always close to 0,5mm). This means the position of the rod is not determined by the small end. Of course I want the crankshaft/rod absolutely centralized in relation to the cylinder bore, but my question was about the correct method of assembling the crankshaft in its main bearings in the cases in such a manner that both bearing inner and outer races are axially parallell. Of course I want the crankshaft to be dead center in the cylinder, but I don't think this alignment is as important for engine longevity as being off by a few hundreds of a millimeter in the main bearing arrangement would be. [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Crankshaft End Float
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