Spark plug interference
03-02-2010, 08:51 AM
#1
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Spark plug interference
I am running gas engines with electronic ignition on planes with JR9303 2.4 transmiter. I have to change sparkplug on one of the motors bur can only find a non resistor plug. Will I have interference?
03-02-2010, 08:56 AM
#2
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RE: Spark plug interference
Probably not, but have you tried a NAPA Auto Parts store? I have been able to get Resistor plugs there for my gas engines. You can also get them mail order from Tower, Horizon, Aircraft International, Desert Aircraft, and many other sources. Your LHS should be able to get them as well.
03-02-2010, 10:12 AM
#5
RE: Spark plug interference
Hmm.....
I'm gonna jump off the bandwagon here and say that loose sparks from the ignition system designed to go to the sparkplug are one of the very few things which will mess with the 2.4GHz radios.
There have been a number of threads in the gas engine forum here as well as other forums where changing to a non-resistor plug in a system which requires one, loose caps on the sparkplugs, frayed shielding and so on have created issues.
Now the caveat is that if the ignition system does not require a resistor plug because that resistor is in the cap then it's not a big deal, otherwise I'd stick with what came out of the engine when new.
I'm gonna jump off the bandwagon here and say that loose sparks from the ignition system designed to go to the sparkplug are one of the very few things which will mess with the 2.4GHz radios.
There have been a number of threads in the gas engine forum here as well as other forums where changing to a non-resistor plug in a system which requires one, loose caps on the sparkplugs, frayed shielding and so on have created issues.
Now the caveat is that if the ignition system does not require a resistor plug because that resistor is in the cap then it's not a big deal, otherwise I'd stick with what came out of the engine when new.
03-04-2010, 02:12 PM
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RE: Spark plug interference
Quadra motors must use a resistor plug, Champion RCJ7Y will work. A buddys was causing the servos to freak out. Just happened to glance at the plug and it said Lawnmower on it. Happened to have the right one in the van which made everything cool.
