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Re: Re: Ratio of Lead to Gas
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Posted by Steve - IN on June 29, 2003 at 15:58:41 from (12.223.205.149):
In Reply to: Re: Ratio of Lead to Gas posted by Hugh MacKay on June 29, 2003 at 15:35:13:
ha ha... good one, Hugh, I don't use it either on the three tractors I have with old style cast valve seats. I believe the argument regarding valve seat reversion, but figure a lot of other things might do in a tractor engine before that will. A major factor is to keep the valves cool (even if they're not high revving or high compression, they can get hot; and "micro welding" from heat causes the problem), so running just a tad rich is a lot easier way to accomplish a cure.
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