Well one of the guys at work installed a mean green arm and super II magnets. I told him how I run in my cars and do a few thousand laps to burnish the gears togeather. Well while doing this his car stalled on the track. While unattended it built up quite a bit of heat. The result was a arm that was melted to the gear plate, a chassis that has brush holes the size of a NJ Pothole and a Mustang body with warped interior pan. As well a a trashed 9"r curve.
http://photos.hobbytalk.com/data/511/3118MVC-005F1.JPG

AHH man you ruined a Tomy 9 inch curve!!! Do you realize how hard they are to come by ? I only have a few thousand n.o.s. left myself . Good luck finding a replacement !

Uhhh...ummmm...who the heck leaves the derned things unattended? sounds like suicide...or...autocide...Hmmm...a carBque!
There is a much easier & more safe way (but kinda messy though not melt yer derned car messy) You guys ever "lap" yer gears with fine buffing compound? makes'em quiet too!

Sorry to hear about your buds loss. RestInPeices er peace, eh?

Keep it in the groove guys!

WOW, and Jersey potholes are huge.

Yep,been there done that.It happens pretty quick too.

I lap mine with buffing compound with the rear wheels romoved and hooked up to an extra power supply.Works great.

Mike

Uhhh...ummmm...who the heck leaves the derned things unattended? sounds like suicide...or...autocide...Hmmm...a carBque!
There is a much easier & more safe way (but kinda messy though not melt yer derned car messy) You guys ever "lap" yer gears with fine buffing compound? makes'em quiet too!

Sorry to hear about your buds loss. RestInPeices er peace, eh?

Keep it in the groove guys!

Fine buffing compound. LOL. Try Colgate. Works great!

Remember, back EMF is your friend. If the motor isn't spinning the arm turns into a heating coil / easy bake oven. At the first sign of a locked arm - get off the throttle. It only takes a few seconds to toast a chassis, especially one with a low resistance arm sitting in it.

Mean greens are high RPM arms that need strong magnets. The stock JL magnets are strong so I wouldn't bother switching to Super IIs. I can't see where a mean green arm would buy you much on that track, other than the fact that it's probably much closer to being balanced than most any JL arm.

I use "Simichrome" polish when I polish/lap my gears. I used to use "Pearl Drops" toothpaste(one of the most abrasive ever made) but it is not available around here anymore.

Bob Weichbrodt
Rawafx
A and H Hobbies
W-S, NC

I tried runnin 110 volts thru em too.Fun but dont last long do they.

Here is a safe way to lap your TJET gears. Take an old trashed chassis, put an AFX or truck axel in it off center with most of the axel out one side. Install the gear plate you want to lap. Then insert axle into variable speed drill and laping compound and run the drill. With a reversable drill you can lap in both directions. This gets everything except the rear clsuter gear shaft hole. Buy a good set of micro reamers from Micromax to take care of it

Roger Corrie

Smell somethin' ? Looks hot! ;) rr

Wow...
I haven't managed to burn one of these up yet.
But I have hooked my 10 amp power supply to my track... ;)
Scott

What?! No action photos with the curls of plastic smoke rising up from the track? :p I note, from the other thread, that this is on the track at work. Did he rubber-band the controller and go back to his desk?

Have you guys noticed how easily jl's plastic melts. It dosen't take much heat in the motor to relocate the brushes in the chassis. Happened to me twice lately. One was a modified so that wasn't to surprising, but the other car was a good runner.

Yes, I've had it happen on one of mine and was surprised how fast it got very "melty".

I have one car that had a loose hole for the armature. Well when I checked to see why it was slow the arm had wobbled enough to "drag" some of the gear plate over the arm. Looks like a ball of dust or dirt on the arm. Kind of weird.