rocker adj. screw , how many threads
I have been chasing pushrod lengths around lately myself. No-one said which end the 3 threads should be exposed on. With only 2 threads exposed on the ball end, the cups on the pushrod hit the rocker arm. I chose to screw the adjusting nuts down to within 4 turns. There's plenty of adjustment left and the the ball and cup aren't fighting with the rocker body. I shimmed the rocker shaft up to re-align the tip with the valve stem. Milling heads, grinding seats, and replacing valves really messes with rocker geometry.
I have been chasing pushrod lengths around lately myself. No-one said which end the 3 threads should be exposed on. With only 2 threads exposed on the ball end, the cups on the pushrod hit the rocker arm. I chose to screw the adjusting nuts down to within 4 turns. There's plenty of adjustment left and the the ball and cup aren't fighting with the rocker body. I shimmed the rocker shaft up to re-align the tip with the valve stem. Milling heads, grinding seats, and replacing valves really messes with rocker geometry.
