Anyhow,
Originally Posted by Exhaustgases
So question, ya say lead lubes the valves and or seats? Where is the frictional movement in that interface that needs lubrication, ... what is there to cushion?...
((((Lead lubes the valve guides a bit on some older simple valvle-guide designs,)))) Funny valve guides have not changed since those days, and unleaded gas is used with them. Its an ever so slight oil film and material hardness and differences. Lead does not lube valve guides especially now.
((((but the main thing being protected is valve seats. Now valves do rotate very slightly which is why they wear evenly ))))) after they contact there is no rotation.
(((micro weld when hot))))) maybe micro weld, but the HOT Is correct, and that is the main function of TEL to cool. Proven by tests done years ago on an aircooled VW, monitoring cylinder head temps. TEL ran extremely cooler than unleaded did, and was a very small percentage of TEL.
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Originally Posted by Exhaustgases
So question, ya say lead lubes the valves and or seats? Where is the frictional movement in that interface that needs lubrication, ... what is there to cushion?...
((((Lead lubes the valve guides a bit on some older simple valvle-guide designs,)))) Funny valve guides have not changed since those days, and unleaded gas is used with them. Its an ever so slight oil film and material hardness and differences. Lead does not lube valve guides especially now.
((((but the main thing being protected is valve seats. Now valves do rotate very slightly which is why they wear evenly ))))) after they contact there is no rotation.
(((micro weld when hot))))) maybe micro weld, but the HOT Is correct, and that is the main function of TEL to cool. Proven by tests done years ago on an aircooled VW, monitoring cylinder head temps. TEL ran extremely cooler than unleaded did, and was a very small percentage of TEL.
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