Motors

[Kiwi Racer]

i built a new super 16d motor today, and i ran it under water for 45secs. after i looked at the com and it was dirty. why is this?

[Monty @ B.O.W.]

You have me mystified, as I've never seen that happen. I'm presuming you've used either Golddust or Bigfoot II brushes, and that you ran the motor at no more than 4 volts. I'll also hope that the comm was freshly trued to begin with.

On rare occasion, I've left a motor running in the water way too long (as in, took a phone call and forgot!), and while the brushes were worn away, the comm was still clean!

[Kiwi Racer]

yeah it was fresly cut, and golddust were used. i got water from the tap could that have done something?

[Monty @ B.O.W.]

I use tap water myself. I wouldn't want to think badly of Kiwi water - I've shared enough meals with Radisich to know he can stand the So-Cal variety :-)

[ET37]

What if you sprayed the motor with electronic/motor cleaner? i bet the brushes would be seated and the comm would be clean...just as if it wasn't black to begin with.....

[ryan540]

built a S16D yesterday. Ran it in at 3 volts for around 5 mins no water, nice sparkly clean comm :p

[Kiwi Racer]

i built another motor today and it was fine. stuffed if i know what happend with the last one

[Lightning]

I have broken in a couple of Parma s16d (502) motors in water. I left in the stock brushes and in about 20 sec the water was muddy and the brushes worn in and down. I cleaned the motor and it was fine and ran strong. Maybe some brush/water combinations just create mud. If it works in the end it must be ok so I still do it that way.

[circuitguy70]

Lighting,
never run in any sealed chinese 16-D, or S-16D motor in water.
Your findings are why, the brushes in the stock setup on these motors are too soft to do this.
I think Chicky has stated the same thing in his forum.

I just use my radius tool on the brushes, and run em' in you as long as it takes (at 3-4 volts) to get the brushes fully seated.
This can take 30 to 80 min.
Of course you want to make sure the motor is not over heating during this process.

Just my 2$.

[Tom Marsteller]

To make you go really fast, you should drink the break in water afterwards. Your Zen will then become one with the motor

Tom......