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Farmall & IHC Tractors Discussion Forum
:

rd16 spark plug for farmalls ?

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Jonathan Mirgon

02-11-2004 17:06:44




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The normal plug I use in my (a) and (h) is a champion d-9 my question is can I use a champion rd-16 ? instead. I friend gave me fourty of these plugs that are all new, the have the same thread and the plug base is the same length, the other difference is the center electrode in the plug is larger can I use these without causing damage ?




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Bob

02-11-2004 19:19:54




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 Re: rd16 spark plug for farmalls ? in reply to Jonathan Mirgon, 02-11-2004 17:06:44  
The RD-16 would be a resistor plug, and much "hotter". Resistor plugs generally are not the best thing to use with magnetos, or 6 Volt electrical systems. Whether the higher heat range would work in your engine depends in part how hard you work the engine, and whether there are any mechanical interferance issues. Since there is such a wide discrepancy in the heat ranges, you would be pretty much on your own if you decided to try them. If they are too "hot", you will have knock, or "detonation", and the engine will be more prone to "diesel" or backfire when shut down.

Your best bet might be to try to sell them on ebay, or wherever, and get the right plugs for yur engine.

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