Actually, it's an old trick old geezers like me have seen before....It's also usually a temp fix cause the stem guides tend to get worn egg-shaped top n bottom and the valve seats are usually close to their end of life cause the valves no longer go straight up n down.
I would def consider doing it if I intended to sell it soon and wanted a non-smoking engine to display.
Years ago, stem seals didn't last long and would crack and fall off. The valves and guides had plenty of life left in them, so lots of folks used that trick..but now a days, by the time they go bad, it's time for a full head/valve job.
He diserves credit for working/thinking his way thru it and sharing with us.
It's guys like him and 4Crawler that make this a great place for info and workarounds...I'm looking forward to more from him!
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