Re: Re: Re: Re: Re: Lead substitutes and old tract

Posted by bob on September 01, 2003 at 05:52:58 from (24.145.166.158):

In Reply to: Re: Re: Re: Re: Lead substitutes and old tractors? posted by Steve - IN on August 31, 2003 at 13:14:36:

I'm not too sure that it was a matter of running cooler, but rather that the lead acts as a lubricant between the valve and seat as they close. While we don't normally think of lead as a lubricant, consider those lead washers that are used under the head nuts of the two-cylinder Deeres. They are there primarily to insure that the nut doesn't seize on the head surface, insuring that they can be tightened to the proper torque.

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