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miker98038 · 02-12-2021, 07:23 PM

Years ago I read an article that suggested running a nut down the stud, putting the rubber washer on upside down inside the valve cover (seated on the new nut) then placing the valve cover in place. After a couple tries adjusting it you put just the chrome washer and acorn nut on. It sealed from the inside, and prevented over tightening the valve cover and squishing the valve cover to head gasket out by over tightening. I've never tried it, so I don't know. But if it works it might give you just enough to start the acorn nut, compress the gasket properly and make it work.

Too many cars and too many years to remember and explain it clearly.

02-12-2021, 07:23 PM	#8
miker98038 Senior Member Join Date: Mar 2013 Location: Kent, WA. Tucson, AZ Posts: 1,414	Re: 312 Y Block valve cover studs Years ago I read an article that suggested running a nut down the stud, putting the rubber washer on upside down inside the valve cover (seated on the new nut) then placing the valve cover in place. After a couple tries adjusting it you put just the chrome washer and acorn nut on. It sealed from the inside, and prevented over tightening the valve cover and squishing the valve cover to head gasket out by over tightening. I've never tried it, so I don't know. But if it works it might give you just enough to start the acorn nut, compress the gasket properly and make it work. Too many cars and too many years to remember and explain it clearly.