Motor Break In

[Hardcore]

I recently bought 2 x 700 sized motors for my E-Savage.
In part of the instructions i recieved it advised to run the motors at approx 3-5volts under water for 1 hour.

I'm having a nightmare with this!!!!

I got 2 x AA batterys. Soldered them together with a wire and added a Tamiya connection (a mini 3v pack)
I'm having a bit of bad luck with it though.

When i put the motor under the water the fan inside it turns the water (resulting in high resistance on the motor) and this is causing the batterys to drain in less than 5 minutes and reach tempretures of 140oF.

So far i've managed about 10 minutes of a 1 hour break in period on 1 motor.
Just 50 minutes left on that and then `1 hour on the other!!

I don't have the ice charger with break in method. Apprently doing the run in underwater cleans the motor of carbon resisdue and prevents pitting of the comm.

Any suggestions or advise on how to help me would be greatly appretiated. I'm considering getting a customer pack made up for this (3 cell pack)

 

[spinout180]

I've had good luck with the "old school" method of breaking in motors using a lathe motor with a 4 cell to spin the new one at low rpm's. Very little heat buildup and no arcing since it's not powered. I use the RPM motor stand, clamp both units in shaft to shaft coupled with tubing and run it about 4-5 minutes. The brushes seat to the comm without the worry of causing damage.

Troy.

 

[Hardcore]

Cheers for that advise troy. I think because these motors are not rebuildable or modded they have very hard brushes and takes a bit longer for them to seat correctly.

Since last night i've butchered an old 7.2volt 3300mah battery (unbranded) and created 2 x 3.6volt packs with it
This way i can still break in the motors underwater with the packs and i can recharge them if required.

I've never broke in any of my motors before or the batterys either. I think by breaking in both (i plan to use 2 x side by side Elite 5000 cells) then i should see a noticeable performance increase as apposed to not breaking in either.

 

[spliffnwesson]

The Duratrax ICE charger has a programmable Motor Break-In function that's pretty easy to use.

..just my two cents.

 

[Hardcore]

i did like that feature but it's about the only feature i would use that my current charger doesn't already have. Expensive way to break in motors. Once i make up a tamiya connection for my charger i'll see how i get on with my 2 x 3 cell packs.

Breaking in these motors underwater certainly cleans out the carbon. After a while the water goes clowdy dark grey