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for single cylinder,
6 r" a1 ]% V) A% i3 W2 R1. Weigh the rotating parts (bottom of connecting rod, lower connecting rod bearing, counterweight pin)
2 j, u; ~" N" k+ G* o% Q2 j, L1 M+ E/ O2. Weight the reciprocating parts (piston, rings, wrist pin, top of connecting rod, top connecting rod bearing). E3 M# y9 ?3 l+ m/ ]2 l
3. Use 100% of the weight from #1 and 50% of the weight from #2.
. I6 |; l) q% G4. multiply result of #3 by 50% of the stroke length to get the torque needed for the counterweight
1 Y8 G! b7 V6 e1 G, S/ T+ Z |
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