Rat Fink
Newbie
Hello all, I'm new here. I haven't been involved in RC hobbies in over 15 years. Now that my son is old enough to be interested, here I am again and soooo much has changed.
I purchased my son an RGT RC-4 Rock Cruiser for Christmas. It has a small 370 motor and long story to short, The motor burned out fairly quickly. when I took the transfer case out it was binding and not spinning smoothly. I oiled all bearings and added a small amount of Dow33 to the gears. Once I put it back together, it all spun smooth and I figured that was the cause.
I purchased an inexpensive replacement Traxxas 7575X 28 turn motor. It burned out on the very first run. It was hot when it went. there was no drive train drag this time, so I thought maybe I went too cheap with the replacement motor.
I then purchased a Speed Secret 22turn motor and heat sink. I thought maybe the larger gauge of wire in the 22 turn motor would be a little more hardy and figured the heat sink can only help.
He had one good run with it, out in the yard, running over rocks through grass and a water hole he loves to play in. He ran it until the battery was flat. The next day while I was at work, he ran it in the house and burned up the third motor. Not being there hands on, I'm not sure of the temperature, or anything for that matter.
I'm at a loss as to what to do now, I don't want to keep throwing motors at this thing, as it was supposed to be an entry level crawler for my son to beat around with.
The whole drivetrain spins without any binding, so I don't see any real resistance there. One thing I have noticed is it seems to have a "brake". When the truck is at speed and the throttle is chopped, the rear tires will bounce off the ground it stops so hard. My son tends to go Forward/Reverse instantly and I wonder if that has anything to do with it? I just don't know, so I am here humbly asking for advice and insight.
I purchased my son an RGT RC-4 Rock Cruiser for Christmas. It has a small 370 motor and long story to short, The motor burned out fairly quickly. when I took the transfer case out it was binding and not spinning smoothly. I oiled all bearings and added a small amount of Dow33 to the gears. Once I put it back together, it all spun smooth and I figured that was the cause.
I purchased an inexpensive replacement Traxxas 7575X 28 turn motor. It burned out on the very first run. It was hot when it went. there was no drive train drag this time, so I thought maybe I went too cheap with the replacement motor.
I then purchased a Speed Secret 22turn motor and heat sink. I thought maybe the larger gauge of wire in the 22 turn motor would be a little more hardy and figured the heat sink can only help.
He had one good run with it, out in the yard, running over rocks through grass and a water hole he loves to play in. He ran it until the battery was flat. The next day while I was at work, he ran it in the house and burned up the third motor. Not being there hands on, I'm not sure of the temperature, or anything for that matter.
I'm at a loss as to what to do now, I don't want to keep throwing motors at this thing, as it was supposed to be an entry level crawler for my son to beat around with.
The whole drivetrain spins without any binding, so I don't see any real resistance there. One thing I have noticed is it seems to have a "brake". When the truck is at speed and the throttle is chopped, the rear tires will bounce off the ground it stops so hard. My son tends to go Forward/Reverse instantly and I wonder if that has anything to do with it? I just don't know, so I am here humbly asking for advice and insight.
