Greenpully
Member
Can I use non resistor spark plugs in an engine that came from factory with resistor plug?Will non resister plugs put more load on electronic ignition system? Why was resistor plugs used in any engine? Thank You GP
- Thread starter Greenpully
- Start date
Janicholson
Well-known Member
You can it will work I would gap the new plugs at about .035 to .040". Resistor plugs raise the voltage at which the spark jumps the gap. (as does resistor wires) the intention is to raise the spark voltage. The resistor wires also eliminate most of the radio static as well.. Jim
Billy Shafer
Well-known Member
I would stay away from Champion plugs. I had 6 fail in one week. My brother bought a weed eater. Would not start. Replaced the plug with an NGK. Started up fine. Champion is not what they used to be.
I have fixed several Husqvarna engines with resistor plugs that somebody decided didn't need a resistor spark plug and then brought it to me because it didn't run right.
It screws up the timing with them because the ignition module is looking for the resistor in the plug to time its spark.
The resistor sparkplug was originally invented to minimize radio interference from the ignition system. The same reason for resistor spark plug wires.
Just go to a tractor show where they have a parade. If somebody is standing close by talking about each tractor on the P.A. system, you will know the ones that don't run resistor wires and resistor plugs. The P.A. system gets all staticey when those tractors drive by.
It screws up the timing with them because the ignition module is looking for the resistor in the plug to time its spark.
The resistor sparkplug was originally invented to minimize radio interference from the ignition system. The same reason for resistor spark plug wires.
Just go to a tractor show where they have a parade. If somebody is standing close by talking about each tractor on the P.A. system, you will know the ones that don't run resistor wires and resistor plugs. The P.A. system gets all staticey when those tractors drive by.
Fawteen
Well-known Member
- Location
- Downeast Maine
In my experience (mostly small engines) Champion has been junk for 40 years.
MarkB_MI
Well-known Member
- Location
- Motown USA
So...why would you want to? You have a specific spark plug recommended by the equipment manufacturer, and you have any number of substitutes available from other plug brands. You're not going to get any improvement in performance, if that's what you're thinking. At best, the non-resistor plug will be a buck cheaper than the equivalent resistor plug.
Charles in Aus.
Well-known Member
Absolutely Fawteen !
In 1978 I put a brand new Champion plug into the left hand cylinder of my Yamaha 500 . Finger tight , then just snug and the thread sheared right off and stayed in the head ! Magpies roosting in the tree nearby flew away from the swearing . Ive never used one since .
Indiana Ken
Well-known Member
This is new to me. My understanding is/was that the spark occurs once the voltage ionizes the gas/air between the plug gap. I am puzzled; how does the resistance, change the voltage level required for ionization?
All this hate for Champion spark plugs! You guys must be doing something WRONG, they work fine for me!
Had a diesel pickup for a daily driver for 23 years, only replaced glow plugs once. The platinum plugs in newer cars run much longer that the plugs in your 1950 & 1960 vintage cars and trucks. But whether it's in an air cooled Kohler, my Stihl chain saw, leaf blower, string trimmer, or one of my FARMALLS, CHAMPION plugs work for me.
Had a diesel pickup for a daily driver for 23 years, only replaced glow plugs once. The platinum plugs in newer cars run much longer that the plugs in your 1950 & 1960 vintage cars and trucks. But whether it's in an air cooled Kohler, my Stihl chain saw, leaf blower, string trimmer, or one of my FARMALLS, CHAMPION plugs work for me.
Billy Shafer
Well-known Member
When you have six plugs fail in a week. That tells you something. Put in NGK never had a problem.
Im not hating on Champion, Im ONLY drawing on experience as a used tractor dealer and farmer who was NOT doing something WRONG, Im ONLY saying based on yearssssssssss of experience in the SAME TRACTORS, Autolite or Bosch or NGK performed better with less fouling and problems then did Champions in THE SAME ENGINE. That's NOT to say another person may have had different experience, Im ONLY reporting on my own personal experience with a ton of tractors and combines and small engines.
To each their own choices, it would be a boring world if we all had the same opinions and choices and experiences lol. I for one respect other opinions and choices and experiences and expect the same in return
John T
To each their own choices, it would be a boring world if we all had the same opinions and choices and experiences lol. I for one respect other opinions and choices and experiences and expect the same in return
John T
Here is what you do. When a guy is complaining about champion spark plugs and using a different brand. You check to see what number and brand he is using and then put in a champion that meets those same specs when he isn't looking. He doesn't know the difference and goes on his merry old way cussing out champions. Some people compare a D 16 champion to a projected tip auto lite and think they are making a honest comparison.
What happened to Champion Spark Plugs? Back in the 50's & 60's they were the ones to use.
One changed the plugs in your car at about every 20,000 miles. At about 1970 I changed the plugs in my '66 Ford, and shortly after it wasn't running right, so I took it in to where I had bought it new, they changer the plugs to another make, and it ran fine. And Champion has not been a dependable plug sense.
Dusty
One changed the plugs in your car at about every 20,000 miles. At about 1970 I changed the plugs in my '66 Ford, and shortly after it wasn't running right, so I took it in to where I had bought it new, they changer the plugs to another make, and it ran fine. And Champion has not been a dependable plug sense.
Dusty
Back in '80. I was changing plugs in a 302 Ford pickup motor. Out of 8 Champions, 2 came out of the box with the ground strap broke off and laying in there loose. Rarely have I used them since. Think I currently have some in the 9n and the WD 45. usually go to the dealer and get my parts anymore. seems like the factory parts are outlasting the aftermarket parts 3 to 1.
CenTex Farmall
Well-known Member
My experience with Champions is that I have not had any problems with them.
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