Janicholson said: (quoted from post at 21:00:46 04/14/09) It could be for machining fixtures used only during manufacture. If it leaks, it may need a new cork (just thinking out loud) JimN
Cork in my 10-20 too; I suspect the Regular and F-20 as well, but didn't check; no such feature on my 22-36.
The Permatex idea should be fine; but, like Jim, I'd be inclinded to just put in a new cork.
I have to wonder if it wasn't for some feature that never became popular. The drilled holes left from machining the camshaft oil trough holes are tapped and plugged with a screw, so I'd think that would be the case for a machining fixture hole too.
My first thought was a power unit accessory [low oil shut off, or return from an rocker oiler system], but I think the 200s and P-30s were too late to have dictated this feature. Guess, I'm stumped too. :?
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