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Old 11-29-2009, 09:47 PM   #1
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Default runnaway! oh no!

so today i was driving my traxxas stampede at the park, i had tuned it up and it was running great! i was very happy!, so happy in fact i decided to try my luck on a huge mud puddle, well it turns out my car is not waterproof, my battery case got soaked and shorted, then it pinned itself ant took off! now it seems like the car had a mind of its own, it took off across the park and targeted a 86 year old grandmother with her 2 grandsons, thankfully she stoped my car with her shins, my truck must have been doing 50kph! i feel bad for her, so to keep this from happening again what can i do? i was thinking of putting a spring on the servo so when it looses power it returns to idle, any other ideas? i cant get a failsafe because it would not work if it lost all power, also i want something cheap, and i want to go mudding! how can i waterproof my car? thanks guys
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Old 11-29-2009, 09:50 PM   #2
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so to keep this from happening again what can i do?
its simple, stay out of the water
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Old 11-29-2009, 09:57 PM   #3
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A lot of people use hair ties instead of throttle return springs. But either would work for closing your throttle if you lose power. You still need a fail safe for when your servo is still getting power and your receiver loses signal.
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Old 11-29-2009, 10:00 PM   #4
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A lot of people use hair ties instead of throttle return springs. But either would work for closing your throttle if you lose power. You still need a fail safe for when your servo is still getting power and your receiver loses signal.
yes i know what you mean, i will pick one up from skycraft, how much are they?
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Old 11-29-2009, 11:09 PM   #5
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here you go http://cgi.ebay.com/Nitro-RC-Fail-Sa...item27ad6d94e3
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Old 11-30-2009, 01:38 PM   #6
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Make sure your receiver doesn't already have one built in. Every 2.4 radio I've had has... I've only had 2 so far though.
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Old 11-30-2009, 01:57 PM   #7
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its simple, stay out of the water
+1
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Old 11-30-2009, 02:01 PM   #8
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yes i know what you mean, i will pick one up from skycraft, how much are they?
If it will keep you from running your RC truck into the shins of an 86 year old woman, does it matter?
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Old 11-30-2009, 03:10 PM   #9
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If it will keep you from running your RC truck into the shins of an 86 year old woman, does it matter?
haha yep, your right, i actualy found a simple fix, i put a spring on the throttle servo, so if it looses power it returns to idle, perfect!
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Old 11-30-2009, 03:14 PM   #10
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You need to put a spring or rubberbands on the carb. If the throttle linkage were to pop off, the spring on the servo wouldn't help you much.
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Old 11-30-2009, 10:17 PM   #11
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I think a spring would be better because when i was heating up my engine with a heat gun the rubber band snapped.
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Old 12-01-2009, 12:37 AM   #12
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I think a spring would be better because when i was heating up my engine with a heat gun the rubber band snapped.
Direct the heat away from the carb. The same thing that happened to your rubber band could happen to your o-rings, among other things.
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