I took poor notes during dissasembly and am now confused.
Looking at the Lycoming parts manual, the parallel valve engines (O-320-B2A) should have identical intake and exhaust rockers. I find I have two part numbers:
69443D which have large oil discharge orifice essentially on the radius of the rocker shaft bore
and
68520 which have small oil discharge hole, lower on the arm, about half way from the shaft to the valve head.
The Lycoming O-320 parts manual lists neither of these numbers.
Anybody know which is the intake and which is the exhaust?
Looking at the Lycoming parts manual, the parallel valve engines (O-320-B2A) should have identical intake and exhaust rockers. I find I have two part numbers:
69443D which have large oil discharge orifice essentially on the radius of the rocker shaft bore
and
68520 which have small oil discharge hole, lower on the arm, about half way from the shaft to the valve head.
The Lycoming O-320 parts manual lists neither of these numbers.
Anybody know which is the intake and which is the exhaust?