imco gearing
#1
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imco gearing
on a imco sc lower how can you tell the ratio with out tearing apart and counting the teeth, only thing stamped on the case is -2 any help would great
#4
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You can order the SC with various gear ratios and they are determined in the lower..
15/19, 1:5 = 1.26666 turns of the Vertical shaft for each turn of the propshaft
15/17, 1:346 = 1.133333 turns of the Vertical shaft for each turn of the propshaft
17/18, 1:25 = 1.0588235 turns of the Vertical shaft for each turn of the propshaft
You can turn the vertical shaft 10 times and multiply the results by 10 and see a more accurate result.
But that should tell you what lower gears you have, then you have to combine them with the upper set to see overall gear ratio.
If you have B1 upper gears 27/32 or XR 16/19.. the ratios I gave you for the lower combinations is true. If you have B1 upper ratio, then it changes the over all ratio.
B1's used to determine over all gear ratio in the upper..
So do the turns thing and tell me what you have for an upper.. We can find what ratio you have.
Dick
15/19, 1:5 = 1.26666 turns of the Vertical shaft for each turn of the propshaft
15/17, 1:346 = 1.133333 turns of the Vertical shaft for each turn of the propshaft
17/18, 1:25 = 1.0588235 turns of the Vertical shaft for each turn of the propshaft
You can turn the vertical shaft 10 times and multiply the results by 10 and see a more accurate result.
But that should tell you what lower gears you have, then you have to combine them with the upper set to see overall gear ratio.
If you have B1 upper gears 27/32 or XR 16/19.. the ratios I gave you for the lower combinations is true. If you have B1 upper ratio, then it changes the over all ratio.
B1's used to determine over all gear ratio in the upper..
So do the turns thing and tell me what you have for an upper.. We can find what ratio you have.
Dick