Mark You know I'm not a rocket scientist. My mother didn't raise a dummy, well there is my brother.. He's not the sharpest tool in the tool shed.
I had a 1962 3.6L 6 cylinder with the highest compression heads. I think they were 9.5:1 (not 100% sure). It required 98 octane. When lead was removed the octane rating dropped 93 or 92.
Lead prevented pre-ingition, pinging, in high compression engines.
All I could do was retard the spark to prevent pinging.
I parked the car with intentions of doing a total rebuild when I retired. The dana 411 was leaking oil on the rear rotors..
After Dr told me I needed L4-L5 fused. Dr told me to get rid of my car, Eldorado, and buy a Truck or SUV. Dr was right. Getting in and out of my jab was extremely difficult and a back killer.
I sold my XKE and 650 triumph motorcycle. No back fusion 19 years later. There may come a time when pain meds stop working I may be rethinking fusion..
I think lead and lead substitutes boosted octane. Again, I'm not a rocket scientist. Not sure what damage pinging does to an engine. Today's cars use an ultrasonic sensor to retard spark or does something to stop pinning. The XKE has to be the best looking car ever made. The XKE has be the most uncomfortable car I've ever driven.
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Today's Featured Article - A Lifetime of Farm Machinery - by Joe Michaels. I am a mechanical engineer by profession, specializing in powerplant work. I worked as a machinist and engine erector, with time spent overseas. I have always had a love for machinery, and an appreciation for farming and farm machinery. I was born and raised in Brooklyn, New York. Not a place one would associate with farms or farm machinery. I credit my parents for instilling a lot of good values, a respect for learning, a knowledge of various skills and a little knowledge of farming in me, amo
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