After the first test run, there was a bad bearing knock. During assembly, I noticed the big end bearing felt a little bit tight but I thought it was okay. It obviously was not. I pressed out the pin removing the bearing and we were able to source a new bearing locally.
After replacing it, it felt even tighter. When running it sounded a bit better but still bad.
I stripped it down again and with some emery cloth took about half a thousandth of an inch off of the pin diameter just to loosen the bearing.
After assembly, I ran the engine slow as if a new engine and gave it time to run in.
The knocking sound was gone and it sounds good.
The final test Wil be to fly it.
Негізгі бет DLE 30cc. Part 2/2. Big End Bearing Replacement And Test Runs.
Пікірлер: 6