brake servo motion

[novak]

Hi,

When I first tested my radio, full throttle was moving the parts fine as well as full brake (the other way of course0.

Now that I started a couple of times and drove it one full tank - I've noticed that full throttle is still fine but there is almost no difference in the moving parts between neutral and full brake !!!?? (maybe 1 or 2 mm)

What's wrong with this ?

...and I am also afraid that even when I am in the neutral position, the brakes are functioning - which could be a cause for the rapid abnormal increase of my engine's temperature (up to 400F !) <see my other thread "reading the temperature" from Novak>.

thank you for your time.

 

[Rolex]

You need to routinely check anything mechanical after running, or before your next day out.
Without starting the engine, turn on the radio and Rx, and with the trigger in the neutral position make sure it rolls freely. Apply some brake and see how it feels. If there's any drag where there shouldn't be any, you need to adjust the linkage till everything works as it should.
Dragging brakes will definitely cause your overheats.

 

[novak]

what do you mean by adjusting the linkage ?

do I need to adjust some screws ?

because this is factory set and i don't if i should start modifying anything ?

 

[Rolex]

Open your manual and look at the linkage to the servo that operates your throttle and brake.
As I explained in my previous post, if it's not working properly, it needs to be adjusted.
You have a brake problem and a SEVERE overheating problem, and one is the cause of the other and needs to be adjusted.
Factory set only means that it SHOULD be right, or at least close to it. You'll be adjusting something almost every time out, so get used to it.

 

[Elmerfudd]

I'll second that from Rolex. Playing with these vehicle's isn't just put gas in and drive it. Sometimes more than 50% of the time you are adjusting something or fixing or tightening. It is endless. It will never be set up where you never have to touch anything.

The first thing I would have checked would be the screw that holds down the servo horn to make sure it is tight, then do what ROlex said and work the throttle and brake when the engine is NOT running and adjust what you need to.

Once you have the brakes working correctly and adjusted as best you can, then fire it up and see how it drives. Usually you will do this in front of your house to make sure everything is working the way it should. Then double check everything that you can including tightness of bolts. Once that is all completed, then go out and bash/race whatever.

Then the process starts all over again.

Half the fun in this hobbie is fixing/repairing the cars!

 

[Cupooterluvr]

Rc wouldn't be nearly as fun without the wrenching and building part of it. That's why toy RC's are epicly fail. You can't build em or upgrade em!

My favorite part is going out and tuning the engine!