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"Original"-- Technical Questions, Answers, Observations / Re: Rebuild Questions
« on: August 02, 2015, 02:00:21 PM »
The scoring as others have said can have a number of causes. One that wasn't mentioned is overheating. That can be cause by low fluid levels, bad water pump, bat thermostat, plugged radiator (either plugged so that the antifreeze doesn't flow or the fins plugged and no airflow) or junk in the water jacket now letting the antifreeze evenly cool each cylinder.
Looking at your pictures I'd guess dirt is the problem looking at the scoring plus the bearings given the short run time sense the last rebuild.
Rick
Looking at your pictures I'd guess dirt is the problem looking at the scoring plus the bearings given the short run time sense the last rebuild.
Rick