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« on: November 19, 2006, 12:13:46 AM »
Hi Guys,
Let me try again to explain. My 10/1 is a 1,000 rpm, I will run it at 600 rpm moat of the time. I bought a double pulley from Mike M. (great job) 60lbs for the ST generator. I can run at 600, 800, 1,000 or if really needed a little higher for short time for running welders. My ST has a AVR so I think the volts will be ok, I hope the Hz will also.
The problem is runout. The outside rim face has .050", this inside face (lip) is .030", the side of the rim is .010". Now here is the real runout, the hub on the largest dia. is .110" & .120" at the smallest dia.
At about 200 rpm's, no shaking, at the slowest adjustment on the linkage, it is still lifting my 5" concrete slab.
Eric thinks the Crankshaft counterweights (bolt-on) are for the cast iron piston maybe, being too heavy. Countering the rod & piston too much. I removed one counter weight, it shook more, but now with only one 6lb, 5.5 oz of counter weight, it is too light by 2lbs, 5.5 ozs.
Is this making any sense ?
The "good" flywheel has runout of .010" on the rim face, .040" inside rim lip, .030" side of rim, & .070" on the hub. So must of the runout is on the hubs. Also, Mine has a ring gear bolted to the "good" flywheel. This could be the problem also, I will measure also.
I was thinking of timing the injection to "smooth out" the timing if that helps. Then grind some of the runout on the hubs to see if hat helps also, if yes, take to a machinest & remove all runout. I do not see any extra weight on the flywheels as a counter weight, but there is one hole drilled on the "bad" flywheel. The other option is to see if Eric will replace these shitty flywheels with ones that will work.
Thanks , Jeff in Colorado