Re: Re: Lead substitute - use it or not.

Posted by the tractor vet on February 28, 2001 at 20:29:33 from (216.196.12.110):

In Reply to: Re: Lead substitute - use it or not. posted by lee on February 28, 2001 at 08:41:31:

We tried that ,the C221 thru C301 came with the stelite valves and seats from the factory and buy the owners maniual it says to use a min. of 93 octaine on them ,the one 706 that ate a exhust valve every time the man ground feed drove me and the machine shop crazy we tryed everything it never burnt the same valve ,you could stand next to the tractor and about half way thru grinding corn you would see a littel pice of valve come out the stackand the miss would start ,back to the shop and start all over again could not nail it down till i came across a orignal owener maniual and started reading it and i found what it recomened for fuel and that is when we found that his fuel hauler was not cleaning his tank and hose out between loads of gas and diesel .He dumped 100 gallons of diesel in 500 gallons of gas when we had it anilized the test showed just how hot fuel can burn it willmelt pistons and torch a stelite valve like a cutting torch. Last fall i threw the old parts out in the scrap i should have taken pictures of the damage. now one gentalman does not agree with me but that is all wright i am just stating what workes with me and my customers and if my years of working on equipment can help one person save a couple of bucks fine . I learned alot when i was racen ford in the ford drag club and since i was the head mechanic i hated when we had a problem i had to know what cause it and what can we do to stop it from happening again got a chance to work with some mighty fine people with some good heads on there shoulders ,so when i see something in an engine i can tell what caused it.

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