I have a t jet that i had to clean and tune to get it running. It will run with a 9volt battery held to it,however it's rear wheels will not move at first until I push them. If I take the battery off it stops and then when I put the battery back, same thing. It has been oiled correctly and spins freely but it runs slowly. I have checked to see if it has oil on anything it shouldn't and it doesn't. Could I need brushes? Help!

Open it up.. see if the brushes are above the chassis.. the tension might be too light on the brushes.. gently push the copper contacts up just a bit till the brushes are above the chassis.. reassemble and try it.. If the brushes look worn, or uneven,, replace em first .. then if it don't run .. adjust em .. you could also have weak magnets, they will run it with a nudge.. but might not be strong enough to spin it at start up..
Chris..

Scott, I power up the car on my old power pack. I use a wooden tooth pick or other non conductive pokey tool to gently push the commsprings and brushes against comm plates from the bottom.

Rarely do you have to push both springs simultaneously. Remember that over bending springs to compensate for worn brushes is a nono. They should be replaced.

Ok Guys thanks for the info. The brushes do look worn and was wondering about that. I have to admit I hadn't thought of the magnets though. Any idea where I can get some new replacements? Thanks everybody

How many you need? You mean stock ones right?

How many you need? You mean stock ones right?

Hi Wheels, yes I mean stock ones. I could use several pairs of each.:thumbsup:

I could use several pairs of each.:thumbsup:

each???????????????

I dunno How about five pairs of each?? LOL

Does anybody know if the magnets loose there magnetism after awhile? Can they be remagnetized? Don't know much about them

what you do is put a stock pair of johnny lightning or auto world magnets in the car with new brushes or clean up the old brushes ( rub the brush face down on a piece of paper to clean them) then cut a groove in the bottom of the brush the side that the copper tab presses up into the motor. also when the car is brushless while you are cleaning them up or replacing them, slightly press the brush tabs up in the brush holes to give them a little more tension. if your car is slow after all this find a professional! :thumbsup:

what you do is put a stock pair of johnny lightning or auto world magnets in the car with new brushes or clean up the old brushes ( rub the brush face down on a piece of paper to clean them) then cut a groove in the bottom of the brush the side that the copper tab presses up into the motor. also when the car is brushless while you are cleaning them up or replacing them, slightly press the brush tabs up in the brush holes to give them a little more tension. if your car is slow after all this find a professional! :thumbsup:

GREAT INFO FOR ME THANKS ALOT!

Hi, If the above advice does not make it any better look closely at the armature and make sure that one of the tiny wires that come from the windings to the commutator plate are not broke, should see one from each winding, 3 total. Also you could try a different top gear plate and armature. When the magnets are out of the car see if they attract to each other like this () If not you might have two magnets of the same polarity. All those things can make a car need a push / bump start to get going. When running, car will have very weak power.

Good ones!

Does anybody know if the magnets loose there magnetism after awhile? Can they be remagnetized? Don't know much about them

Yes they do, an Yes they can be, you need a magnet zapper

Thanks for the info so far guys. I am going to try this all tonight because this car is mint and is similar to one my grand dad had when I was a kid and he gave to me . Ex wife threw it out !

Now , what is a Magnet Zapper, and where can I get one please ?!

Tycos

Tycos

LOL Rich , can you be more specific? I don't know what you mean , sorry !:)

LOL Rich , can you be more specific? I don't know what you mean , sorry !:)

You can drown them in salt water for twenty years, pull em out out to dry, clean the shoes, and they still work.
Good for racin in Texas.:thumbsup:

Rich

You can drown them in salt water for twenty years, pull em out out to dry, clean the shoes, and they still work.
Good for racin in Texas.:thumbsup:

Rich

And if fate is fickle and one doesn't work after Hurricane Joe the Plumber hits, you can score a new Tyco (Mattel) chassis for $2.98!!!!! That's real good for racin' in Cali-forn-i-a as our Governator says.

got-cha guys!

Thanks for the info so far guys. I am going to try this all tonight because this car is mint and is similar to one my grand dad had when I was a kid and he gave to me . Ex wife threw it out !

Now , what is a Magnet Zapper, and where can I get one please ?!

Magnet zapper realigns the magnetic field, this is a 1/24 scale model but I think it can be used for HO http://www.bestothewest.com/?page_id=19

from another site when i asked about doing HO couple months ago
Monty@B.O.W.
Super Moderator Join Date: Jul 2007
Posts: 146

HO magnets

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Yes, the ceramic ones for sure,and probably the neodymium as well since it will zap Falcon 7 motors.

TThe trick of it is to hold the magnets in the right orientation. The zapper is an 'air core' type - the field is generated along the long axis of the coil. This means that magnets at the bottom of the well and facing UP become the positive. Facing DOWN become negative. If you do a pair of them, or a complete motor, these same directions apply.