Just curious if anyone else has seen these symptoms on the stock motor setup. I have a call in to Griz for replacement parts, but haven't heard back from them yet.
Here is the story... When starting up, I get very little torque. Very easy to hand stall the motor below 200rpm. Run it up to 1500 and it starts making wierd noises, kinda rattling sounds. Run it up to 1800 and it's either making loud rattling sounds or ERR with stop. When it ERR, sometimes it is almost like 'jammed' and I have to give a short turn by hand to allow it to restart.
When I give it this turn by hand, there is a loud 'clunk' sound, much like a gear outta whack. Def not a good sound to hear.
Funny thing is if I start out forward, switch to reverse, it spins up smooth as silk. Doesn't make any noise or complaint at all. I pulled the belt and drive off the motor and the results are the same. Forward, ratty, reverse smooth.
Could this be a 'monday morning' bearing installation in the motor? enough out of whack that for some reason spinning in reverse allows it to seat and settle, but forward pulls it out and creates a binding?
I was thinking it might be a timing issue with the controller, but the more I think it is prob a bad bearing in the motor.
Thoughts?