273 rocker arm adjustment
So I got the holes drilled in the rockers. And I see a problem. The holes are under the top of the spring retainers...so if I drill the hole on the shaft while on the cam base circle the oil will miss the top of the valve tip.
So I would have to locate that oil hole lower on the shaft so when the valve is opening the top of spring retainer will be at a lower position so that the oil would spurt out on it.
Also drilled a test hole in a old shaft, using a cobalt bit and it drilled just fine. Doesn't appear to need carbide drill bits.
So I got the holes drilled in the rockers. And I see a problem. The holes are under the top of the spring retainers...so if I drill the hole on the shaft while on the cam base circle the oil will miss the top of the valve tip.
So I would have to locate that oil hole lower on the shaft so when the valve is opening the top of spring retainer will be at a lower position so that the oil would spurt out on it.
Also drilled a test hole in a old shaft, using a cobalt bit and it drilled just fine. Doesn't appear to need carbide drill bits.