So far I have read about these machines and many people have problems with the bearings going out. However, this does not seem like a bearing problem based on the videos I've seen on YouTube (the sound when a bearing goes out is much louder and is constant; the sound my machine makes has a grinding sound, then a pause, then it repeats). The grind and pause, grind and pause, make me think it may be a belt. Not sure if I can upload a video here, or I would. Any help would be appreciated. Thanks!
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I repaired the problem. The Flywheel was loose. The tension on the belt pulled the flywheel against the plastic cover, which caused the noise. Tightening the flywheel bolt temporarily fixed the problem. I had to replace it with a nylon lock nut. Problem solved. I will try to upload images.
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