Spark Plug Selection

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Spark Plug Selection

Postby outdoors4evr » Wed Feb 02, 2011 6:00 pm

What's with the different spark plugs used in the 184? Here is what it has in the CNH Parts & Service. My tractor currently has the Champion RD18Y plug. I mow grass, blow snow, and rototill a little. The latter two really push the capabilities of the tractor. I've never fouled a plug and all of the plugs are currently clean & dry with just a hint of white on them (slightly lean). Which one do I pick?

RD18Y SPARK PLUG PLUG, spark, light service, champion
RD15Y SPARK PLUG PLUG, spark, moderate service, champion
RD6 SPARK PLUG PLUG, spark, heavy service, champion
18R52 PLUG, spark, moderate service, prestolite
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Re: Spark Plug Selection

Postby Bigdog » Wed Feb 02, 2011 7:50 pm

Based on your description I'd stay with what you have.
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Re: Spark Plug Selection

Postby Phazer » Wed Feb 02, 2011 8:00 pm

Or . . . . If the "light duty" plug is hotter, it will be whiter when your working it hard. Blower and tiller would be considered hard service, mowing not so much. So a heavy service plug would be colder and probably bring you into a closer range of tan, but maybe be dark when your just mowing.
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Re: Spark Plug Selection

Postby Don McCombs » Wed Feb 02, 2011 10:05 pm

Stick with a winner.
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Re: Spark Plug Selection

Postby Gary Dotson » Thu Feb 03, 2011 7:30 am

Don't fix what ain't broke! It sounds like your current plugs are doing just fine.
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Re: Spark Plug Selection

Postby outdoors4evr » Thu Feb 03, 2011 8:12 am

There is significant wear on the electrode. Also started to miss yesterday so I started looking into plugs, wires, and distributer cap.
Ran great this morning so I think it was more moisture related because we both (tractor and I) took a couple of major snowbaths while running the blower.
Kinda looked like the abominable snowman driving a tractor!
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Re: Spark Plug Selection

Postby b52c130 » Thu Feb 03, 2011 10:38 am

Outdoors,
Next time before you go out to make 'white blizzards' - try spraying the distributor cap and wires with some silicon spray. It helps keep the moisture out.
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