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IH 400 Spark Plug Burn Out
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Posted by Ron on March 25, 2004 at 05:18:49 from (208.28.190.13):
I've got (2) IH 400's and a "M" and they all are worked hard on a weekly basis. We burn 20 - 40 gallon of fuel in the 400's weekly (each). I'm not sure what has happened, but over the course of the past year or so I'm having more and more trubble with spark plugs burning out. I've used a few different plugs, different heat ranges, found the best longest lasting plug was a Champion D18Y. But also had decient success with a Autolight plug (I can't remember the number of that one) The motors are all "tight", compression is good, valves are adjusted. I'm thinking that the fuel (gas) is just not what it use to be, and those old motors can't run right on this fuel with Ethanal and everything else in there. Does anyone make an adapter to run automotive spark plugs in those engines? I wonder if a "Platinum" tipped automotive plug wouldn't last longer and fire better. I'd run "hi-test" fuel (higher octane) but I just can't afford it. Any and all sugestions would be very helpful !!!!! I've also played with the timing, and can't see how that made a difference at all. ? What about a high output coil, and breakerless ingition ? Mabie that would help ?
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