PDA

View Full Version : Servo Horns are MESSED


Car_Head12
04-09-2001, 04:34 PM
whenever i crash, against a wall (not very often but...) the horn turns and the actual does not, which makes the tires like \ when they would normally be straight. should i glue it on, or is there some other way?

i dont wanna get more servo horns(i have one or two that will work), cause i would jus have to keep buying more servo horns...

i guess you could say im looking for a more "permanent" solution.any ideas would be great!
thanks http://www.rccaraction.com/ubb/smile.gif
Car Head

mexican_speed
04-09-2001, 04:57 PM
I don't fully understand the question, but you might have a problem with the output shaft strippin your horn. Do you have the screw that holds it down? I had that problem before, Metal and plastics don't interact quite well when under pressure. http://www.rccaraction.com/ubb/cool.gif

Car_Head12
04-09-2001, 05:04 PM
sry let me try again. When im running normally it turns fine, doesnt go out of alignment or anything. say i then run into a curb with the wheels looking like this, | |, then they will bend like this, / /, the car is now OUT of alignment, and i have to re center the steering. when i open up the servo all the gears are FINE and yes i have the screw in. its REALLY pissin me off...

Car Head

Nairb
04-09-2001, 05:08 PM
Different brands of servos have different amounts of teeth on their output shafts; some are even different sizes. You MUST make sure you have a servo horn that is made to fit your brand of servo. You might have one that fits close, but when exerted upon (when you hit a wall) it skips teeth. See what I'm saying? First thing's first...make sure it perfectly matches.

Car_Head12
04-09-2001, 05:22 PM
AHHHH, i think you might be right but also, i just went out and checked on the car, and the screw had loosened up. tom. im gonna do a run and see how it goes. i might jus have to keep tightening the screw.

thanks

Car Head

P.S. i will also try the original horns ( if i can find them http://www.rccaraction.com/ubb/smile.gif)

Railman
04-09-2001, 09:47 PM
Use a servo saver (if not equiped with one).

jboyce13
04-10-2001, 07:19 AM
i had the same problem, even with the screw tightened. i think that they little ribs were stripped a little on either the servo or the horn. i put a little thread lok, and that seemes to cure it. i ran it only for about a week before i changed the servo so i do not know if the lok would have helped for a long time.

Car_Head12
04-10-2001, 07:26 AM
ummm explain what exactly a servo saver is....(???) http://www.rccaraction.com/ubb/smile.gif ans yes is thing i am going to use some lok on it. im gonna try it tonight so...ill let u know then...
http://www.plauder-smilies.de/rough/twak.gif
Car Head

Railman
04-10-2001, 08:38 AM
A servo saver absorbs a sudden hit, like when you hit something. They are built into most cars & trucks, but not all. If built into car/truck it needs to be adjusted properly. It is a spring loaded cam mechanism that does not give untill it reaches its load limit then alows rotation. If properly adjusted they help a lot, but will not help on extreme hits. You can also install after market ones that install in place of the servo horn. Kimbrough makes 3 different size & strength units, which are very popular. "GS Silicones" has recently come out with one also, but I have not tried it. The typical cost of a servo saver is $4->$5. Any decent hobby store should stock an assortment of these, but you'll have to ask for them because they keep behind the counter in a bulk container. They can recomend one for your application. You will need to tell them which servo you have because each servo brand has it's own size & pitch spline.
I hope this helps. Good luck.