273 rocker arm adjustment
braze shut the top rocker hole. drill/tap/plug the outer 9 o'clock hole when done drilling thru (past) the inner hole (which is already there) & on thru the shaft. drill a hole thru the rocker/shaft at the 3 o'clock (right hand side) location. drill em (.100") with the cam on base circle. solder shut the small "side" holes in the shaft (you see two of em in the pic)
braze shut the top rocker hole. drill/tap/plug the outer 9 o'clock hole when done drilling thru (past) the inner hole (which is already there) & on thru the shaft. drill a hole thru the rocker/shaft at the 3 o'clock (right hand side) location. drill em (.100") with the cam on base circle. solder shut the small "side" holes in the shaft (you see two of em in the pic)
