1999 Question of the Week:
"What’s your favorite method of breaking in your electric motor or gas engine?"
on my stock motors I just cut the comm if they aren't already, and use some reedy 767 brushes, and matrix drops and go!
run it for 2 mins. on a 4 cell 2000, be sure to use comm drops during break in!
For electric stock motors I take out the brushes, lube the bushings, then turn the comm shaft with a dremel tool for about 5 min, then for both stock and mod motors I stick a 1500mAh 6cell battery on the motor which is secured in a motor holder with fan.
For nitro engines I make sure break in settings are correct then I run the vechicle out in the street at 0%-40% throttle for about 5 tanks, then 5-7 tanks I put the throttle up to 100% but just do quick full burst then 9th tank I start leaning it out till I get a light blue plume of smoke and make sure the bottom end isn't sluggish! Some people have told me you should let your engine just idle for 2 tanks or more... Oh yeah we need a chat board AE so we can post topics. HPI, Trinity already have one!
I can't actually afford to buy new motors so my motors are already run in. When I put new brushes in I just stick them on the shinwa motors dresser for a minute or so even though I don't really know how to use the dresser :(( Hope this helps
For electric-Break in fluid. 4-cell pack 10 minutes.
I don't break in electric motors. I put in the car and run it. With gas engines I run them rich, on pavement, and without the body.
Most of the time I just run my Electric motor on the track to break in the brushes, but to break in the bushings I will run it off a slave motor for 5 minutes while oiling the bushings, sometimes I will do the same to break in brushes.
For an electric motor I usually start with the throttle on about a quarter using about a battery for that. Then I start it on half and use a battery for that, I don't do it on full for a battery because it might damage the comm and then burn the brushes.
I drive the motor 3 times and its usually broken in. Chris
Electric: I connect the motor-shaft (using a fuel-tube and tie-wraps) to my proxxon-tool (similar to dremel) and let it run for a few minutes.
Gas:Driving on a flat(tarmac)surface with a very rich setting for about 3-4 tanks and max. 50% throttle. The next 1-2 tanks, I set the needle a bit leaner (max. 1/2turn) and run max. 75% throttle. Then, I run 1 tank with the same needle-setting on full throttle for 2-3 seconds and turn the needle for the leanest possible setting. That`s it!
I use a dremel tool to spin the armature in the can for 10 minutes. Then I hook the motor up to a 4-cell pack to further break in the motor. Next I spray the motor to remove brush particals(and bushing particals if stock). Finally I lube the bearings/bushings.
For the rebuildible stock motors I first use a bushing alignment tool to make sure the bushings are true for the least resistence. Then I align the brush hoods to make sure the brushes get a full seat. Then I use a metal polish (Blue Magic-grocery store bought)inside the bushings and turn the motor with a reversed battery-powered Dremel tool on low speed for about ten minutes. Use motor spray and completly clean out all of the metal polish. Then finally turn the motor another five minutes with 2 drops bushing oil on each bushing. Turns like ball bearings afterwards. Mark Westerfield
when beraking in a new engine, i take the spur gear off of the transmission. this puts little to no strain on the engine during the break-in time. during the first 5 tanks of gas, i lean out the high mixture 30 degrees
To break in my electric motor i do the following things *True The Commutator *Clean brushes *Spray with Motor Spray *Oil Bearings( or bushings) *Put Com drops on brushes *Run the motor on a 4 cell battery untill battery is dead
I know nothing about gas engines but as for electric motors I hook the brushes up to an old motor put com drops on the com w/out a sch. then hook up the pinion gear end of the motor to a dremal mototool spin it for about 3 seconds then I spray them with motor cleaner to clean off access residue and what is left of the com drops then I put them on the motor thay are going to and run a long practice like with the 3000 nimh pack and get it pretty hot this method seats the brushes really well from my own testing
Running it a few times around my drive way before the race.
electric- motor stand with fan on a four cell pack let it run for a few minutes Gas-sit the vechicle on a stand with a fan blowing on it and let the engine run off about five tanks of gas with reciever off and little throttle set the engine rich.
For breaking in an electric motor I would first buy new brushes that are already broke in for an example (Reedy brushes by team Associated). Then i would go buy bearing oil and comm lathe. I would oil the bearings and the comm. Finnaly i would put the pinion on the motor and turn it several times by hand before driveing it in my car or truck at a slow speed for first run.
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