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I am amazed by the stupidity of people. I have reconstructed the crime. The rod bearing as it meets the crank was deeply scored. The screws that held the 2 halves of the rod bearing area to the crank had backed out and the top of the rod was free. There are shavings all over the inside of the block, but no other major damage. The wires to the oil sensing cut off were unplugged and the sensor switch was in the 'OFF' position.
This is what I think happened:
Oil sensor went off. Someone pulled/bypassed the wires and flipped the switch. Then that genious ran the unit. Finally the genious replaced the oil, but the bearings were scored. The scoring made for heat and vibration and the screws backed out. The scoring got worse and the metal filings were circulated. Finally the bolts let go. The crank then could no longer spin as it was hiting the rod rather than pulling it up and down.
I found a source for cranks at 55 bucks. I found a source for rods too. The piston and cylinder are pristine, as are the rings and gaskets. Valves and rods and lifters are all pristine aside from some carbon on the exhaust valve. A tad of Marvel Mystery oil and a wooden chissel should eliminate most of the grunge.
Looks like I get to unzip the entire block, clean it out, clean it a second time, and then rebuild. It will be a couple of hours of work, but this is a $2ooo heavy duty generator so I should not complain. Then again, I never would have gotten the unit without the help of that genious who bypassed the oil sensing cutoff.
Given the electrical grid in New York City, a 5000 watt heavy duty generator may come in handy.
, Wed, 15 Aug 2007 07:28:38
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