Another thing I've learned today that I had no idea about.
I just had my valves ground and head work done. I just read the definition of valve recession and have a question.
The article I read after yours was about how pre 1975 engines need a lead substitute to help lubricate the metal of the valve seats. My question is, does the octane rating of the gas have anything to do with valve recession? ....or is it just the lubrication properties of the fuel that help keep from this happening?
By the way, what product will you use to add to your fuel?
Thanks!
Ha, Mark, looks like I should of waited on your reply first.
This post was edited by 641Dave at 14:38:00 05/11/12.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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