mcmoyer
Fairly New Member
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I'm an RC flight guy. Mostly fixed wing nowadays, but spent a lot of time and a crap ton of money on helicopters. I got this truck for my dog. It's the 2WD Granite Voltage. Early on, the stock motor started screeching. I assumed it was a bad bearing and it didn't look like it could be rebuilt. I ordered a Yeah Racing 17t motor to replace it. It had the same size shaft so I re-used the pinion.
I realized recently that the Yeah Racing motor is the cause of my "stripped gear noise" that's transient. After I've been running it for around 7 minutes, it starts sounding like a gear is stripped on start. What's happening is the motor is getting so hot, it's softening the plastic and allowing the the motor mount to flex, effectively allowing the pinion to pull away from the spur gear.
So obviously I'm not real good at picking a good replacement motor for this vehicle. I've read on here where people have replaced with Reedy Radon 19t and then some others used 550 size, but all of these are using a 3.175 pinion.
So, can someone make is stupid obvious which motor I should replace this with. I'd just replace it with the OEM one, but it didn't last long for me. Not sure if it's because it's usually driving in grass at full throttle trying to outrun my dog or not.
I don't mind changing the pinion, but if so, let me know what pinion I would need as well. If it's not obvious, I'm not wanting to spend a ton of money on this truck either, just get it back into action for my pup.
I realized recently that the Yeah Racing motor is the cause of my "stripped gear noise" that's transient. After I've been running it for around 7 minutes, it starts sounding like a gear is stripped on start. What's happening is the motor is getting so hot, it's softening the plastic and allowing the the motor mount to flex, effectively allowing the pinion to pull away from the spur gear.
So obviously I'm not real good at picking a good replacement motor for this vehicle. I've read on here where people have replaced with Reedy Radon 19t and then some others used 550 size, but all of these are using a 3.175 pinion.
So, can someone make is stupid obvious which motor I should replace this with. I'd just replace it with the OEM one, but it didn't last long for me. Not sure if it's because it's usually driving in grass at full throttle trying to outrun my dog or not.
I don't mind changing the pinion, but if so, let me know what pinion I would need as well. If it's not obvious, I'm not wanting to spend a ton of money on this truck either, just get it back into action for my pup.