31
Listeroid Engines / Re: balance and stover 20" on a 6/1, left and right?
« on: December 31, 2014, 07:11:22 PM »
I think the manufacturer put the wrong flywheels on that engine. Those are for an internally balanced 10/1. The internally balanced Indian engines had/(have?) four circular cutouts and require counterweights on the big end to balance the reciprocating forces.
A while back I determined that the counterweight cast into the 22" 6-spoke flywheels weigh about 48 ozs, each. It wouldn't be hard to calculate the necessary weight to bolt onto the 10/1 flywheel web to provide the same balancing force at 650 rpm. But given the smaller radius of the stover flywheels, the counterweight would have to be quite a bit heavier than that. A machine shop could cut a couple of pieces of steel that could be bolted through one of the cutouts in the web. But I have another solution which involves a pair of new old-stock 6-spoke 6/1 flywheels that I got from Joel when he was selling off his remaining spare parts. I wanted to help Joel out, so paid him for them and hauled them home. Subsequent to that, I pulled my biceps tendon off my radius bone lifting a flywheel in a way I shouldn't have, and had to have surgery to repair it. So my RN-wife informed me that I'm not allowed to lift flywheels any more.
Tyssniffen and I have discussed the matter offline.
Quinn
A while back I determined that the counterweight cast into the 22" 6-spoke flywheels weigh about 48 ozs, each. It wouldn't be hard to calculate the necessary weight to bolt onto the 10/1 flywheel web to provide the same balancing force at 650 rpm. But given the smaller radius of the stover flywheels, the counterweight would have to be quite a bit heavier than that. A machine shop could cut a couple of pieces of steel that could be bolted through one of the cutouts in the web. But I have another solution which involves a pair of new old-stock 6-spoke 6/1 flywheels that I got from Joel when he was selling off his remaining spare parts. I wanted to help Joel out, so paid him for them and hauled them home. Subsequent to that, I pulled my biceps tendon off my radius bone lifting a flywheel in a way I shouldn't have, and had to have surgery to repair it. So my RN-wife informed me that I'm not allowed to lift flywheels any more.
Tyssniffen and I have discussed the matter offline.
Quinn