Help! I was running my 3.3 tmaxx tuning it and notice it reving high so I touched the servo trim to slow it down then next thing I now the thing reved right out with out the throttle servo even moving. I had my foot in front of it so it chew that plastic gear right off before I could shut it down. Not sure if I did it or not, but f it's leaning out on its own where would the air leak be? Check servos they move back and forth like normal. Fired the truck up again and it just reved out full throttle again
Just a thought since I've never chewed the spur gear before. Is it possible that since the gear is chewed off and there is no tension on the motor that it revs higher then normal cause its so free? Like if I replace the gear would it run fine again? I can't find any cracks on the motor or any loose parts that it would lean its self out.
I just saw your post,
If it reves up like mad and even when you pinch the fuel line, runs away then yeah do verify your spur gears (hopefully no damage in your tranny too), if its is stripped, your car will rev to the moon , but wont run or move.
If it runs by itself though the spurs etc are all good, verify your clutch bell, possible that the pads and springs are not in good shape any more, do this after you have nicely set the hsn and lsn....
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Without starting the engine, test the throttle linkage and make sure it is closing the throttle when you let go of the trigger. There should be a large coil spring that will physically pull the throttle linkage to the closed position when there is no power to the servo.
Revo 3.3, EMBE 6s, ERBE 6s (x2), Summit 4s
If fooled with the idle gap screw you need to reset it back to 1mm, then retune.
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if your spur is chewed the idle will be higher.
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