Anyone know why this motor doesnt work?

[Tyrael1986]

i dug out a old motor that i had, and i tested it out and it didn't work. when i apply power to it nothing happens. i took it apart, cleaned everything oiled it and put it back together but still nothing... i cant figure out why its not working... its a old Precision Motor Works "Bad Animal" 15x6 mod motor. does anyone have any ideas why it wont work? also i know about the first number the 15x? but what does the second number mean? things like 15x2, 15x1 15x6 and such? my buggy has a 19x2 in it now, but what does that compare to a "working" 15x6 motor?

[microrcdude]

bad pic, but it looks like the brushes are shot and the comm needs to be cut

[Tyrael1986]

yeah, you may be right. up close the com actually looks pretty nice. the brushes though are shot. does anyone know anything about a 15x6 motor? Ive never seen a motor with such high amount of wires in it. (15x6) means 6 wires :) i found that out via some research. I'm gonna keep trying to get this working, considering i have never seen one like it before...

[rcguy2477]

the brushes look fine from what I can see. The problem is most that the timing was set wrong. Though I have heard of motors with six winds, it is fairly uncommon. You may want to check to see if it is really a 15x6 since that was hand written on the motor.

[Tyrael1986]

it surely is a 15x6, both me and my dad took a very close look at it. the brushes were shot, i got some better brushes that should work from a different motor to try. the old ones had small pits in them. will the timing on a motor cause it not to function at all? and can anyone explain to me how a 15x6 compares to a 15x2? whats the difference? other than the gauge of wire used when wrapping them and the amount of wires used. speed/torque and what not?

[highroller]

Six is the numbers of strands of wire that are wrapped 15 times around each armature stack. Single uses one strand of wire, double- two strands of wire, triple - 3 strands of wire. and so on.
That motor is way underpowered against today's modifieds but with some replacement parts should make a good bashing motor. Replace the brushes with a low silver type like Reedy 732 and use a set of Trinity Red brush springs.
Hope you marked the can and endbell to ease in reassembling motor so it's timed correctly and runs in correct direction. Also keep the shims and spacers that were on motor in correct orientation. Install the brown (phenolic washer) first on comm each of motor then 2 brass washers, then 1-2 washers on output shaft end of motor.
Probably the reason motor doesn't run are two reason - brushes worn or two short that springs aren't putting enough pressure on brush to maintain contact the other could be if shims were put on wrong or left off is allowing the armature to short out on the endbell or bearing. Once you get motor assembled and parts installed use something to orient the correct timing start with 12 to 18 degrees of advanced timing - less if you want more runtime.

[outfitter540]

im a nitro guy but tell me if i am wrong. The number of turns, in your case 16 dictates rpm. the lower the turn the faster the motor will go. The number of winds, 6 in your case, dictates how much "punch" an engine will have. 6 winds if awefully high so your motor will have good rpms, but it will not have as much torque as a motor with 1 or 2 winds.