It's been one of those weeks! I can't get registered to tekin's forum as it won't "allow" my verizon.net or my yahoo mail account???

Anyways, here is my dilema and hoping for a solution.

I have a RX8, SC4x 5.5, spektrum dx3r/sr3100rx, savox 1258tg, and a power cap to rx. in a SC10 4x4.

I had some glitching upon assembly which I was trying to narrow down. The "old" sr3100 had a cracked case so I installed the one from my B4 which is tried and true.

I plugged RX8 into my hotwire, running newest version (212 i think), and set the settings for brushless fwd/brake/no reverse, 2s cutoff, multiple neutral width settings, multiple timing settings, etc.

I've properly completed the bind to the rx many different times. The servo is perfectly operational. The RX8 upon power up does nothing for a few seconds. (this is the time period that it used to initialize and chime) then after 4-5 seconds it lights up the first three lights together. then another three lights "forward" on the scale, then the last three lights.

The error code makes me believe that it's stuck in "pit tune" mode but I'm uncertain. I can hold input... nothing, hold input/inc together.. nothing.

Then, what's really got me looped is that when I power down, bring it back to the hotwire, I see that it's at factory reset with 1s battery, 56 neutral width, etc....

Now I've since reset the hotwire settings, unplugged rx8, then plugged in the rx8 to hotwire again and it "remembers" the settings. As soon as I power it up with my battery I get the same thing all over again. I've also tried two different batteries and have verified that hey have over 8.2v showing.

I've verified all sc4x wires are properly installed.

I'm at a loss at this point, I'm opening the door for the RCtech crowd, and maybe randy pike to try and point me in the right direction. I'm aware and can go through the service process through tekin but I wanted to try this first.

Thoughts, ideas, and help welcome... To the guys I race with, keep the smack talk to a minimum..

Update as I continue to troubleshoot anything I can replace.

Found something!

Sensor Wire but I think motor sensors instead.

I loosened motor and removed sensor wire. I then installed another tested sensor wire. It had the same problem as before. Since the motor was loose and no pinion was on it I figured I'd give it that "spin the motor shaft and see if the sensor lights glow in the RX8 test" That's where it gets ODD. I spun the motor and the light started to glow and then lit up bright and they one by one went across the LED's back and forth.

I did the patented "what the? error is that?" and shut it off. Turned it back on and it boots fine and runs. Makes you think it was the sensor wire at first but I reinstalled the sensor wire and now it boots fine as well. Chance that the rotor was stuck in a place where the sensor wasn't giving proper feedback??

Going through the motor now.

So, pull the motor apart. It looks rather clean. It is a used motor and you can tell that the bearings are starting to spin more freely as opposed to the greased feel of factory.

Anyways, Here is what I find inside the motor between the rotor and the windings.





Looks like smeared foil, or perhaps solder that got hot, melted, and spun around the rotor? I'm guessing but it's very plausible. It didn't really melt like solder but I've never tried to melt a thin shaving of solder to be sure.. lol.

If nothing else I hope this is what was shielding the sensors. I'm sure it's time to look for another motor but that's fine, Better than the rx8 being the culprit.

guess I'll see if tekin services the motors or if it's worth just buying new and starting fresh.