After a phone call to the Tech guys who service the JR radios, I was asked to send them the RX for replacement.
ORIGINAL: ludovic
The only other thing I can think of is a bad ground in your radio system...
After a lengthy (and probably costly) phone call (weekday and daytime rates apply) it was determined that the probable cause is a bad solder joint to the crystal holder inside the RX. This came after MANY questions and scenerios were tossed around. I have to give credit to these guys. They left no stone unturned.
Kudos go out to JR support.
While on the phone, I installed a different RX, but with the same crystals as the previous RX.
It worked
They had me hook up the glow plug and everything, like I was preparing to start it, and , except for some very minor jitters, it worked. Did'nt go crazy on my or shut down.
The determination and explanation of the problem came down to the Strange RF from the glo igniter affecting the loose or cracked crystal holder. It would still seem to work, but with lots of jitters with only the radio on. Add into the scenerio the RF from the igniter, and it would be enough to create an open circuit, shutting down the RX ability to work.
I don't know if I am making any sense, but it all sounded very convincing to me.
Anyways......
The RX will be replaced FOC
I feel it in my bones, it was the RX due to the one I replaced it with worked wiithout problems.
As a preventative measure, I'm still going to shield the igniter's wires, and if possible, try to sheild the power panel itself, or at a last resort, get a new one. (Even though it still works, but maybe not as well as it should)