Posted by abertarelli on November 12, 2016 at 13:06:48 from (66.87.151.178):
Thank you all for your helpful advise. I thought I would post my resolution to my issue. I developed a very loud knock incredibly fast while doing some light work. I killed the machine and started to tear in. I found a ton of play in my number three connecting rod. After thinking I was in for the big one, I decided to poke around and see what everything else looked like. I was surprised that pistons and sleeves looked good. My connecting rods liked good and my crank was not grooved. The issue was a missing connecting rod bearing. I thought the worst and was prepared to pull it apart and have crank and rods machined with new bearings. Before I did that I thought for giggles I wold chuck in a standard bearing and see where that left me. Well that didn't work and there still was a tiny bit of play. So back to crank machining idea. Before I did that I stuck some larger plastiguage in there and it came out that an 030 bearing would be close. I chucked it in, and boom no play. Put it all back together and have put a few running hours on her with no issues. I'm going to give this a shot and see what happens, but I have sourced a used crank nd connecting rods as a backup. We will see what happens. Thanks for all your advise. Adrian
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