Pushrod oiling - do I need it?
If you want to block the oil to the shaft, you can also put a set screw into the oil passage in the head pedestal oil passage right under the shaft or reduce
The oil with a small jet.
Nothing wrong with shaft oiling.
If running pushrod oiling, you need to be sure your rockers are designed for it. If your rockers are similar to this picture and have to pushrod cup oiling hole below the adjuster threads, these can’t be used for pushrod oiling. Picture is an older Hughes rocker.
For pushrods oiling to work the oil passage in the rocker needs to be drilled into the adjuster threads so it can be fed oil from the pushrod, through the adjuster,
Intersect the oil hole drilled in the threads and get into the rocker and shaft. A special drilled adjuster with a cutaway in the threads to intersect with the oil hole is also needed.
If you want to block the oil to the shaft, you can also put a set screw into the oil passage in the head pedestal oil passage right under the shaft or reduce
The oil with a small jet.
Nothing wrong with shaft oiling.
If running pushrod oiling, you need to be sure your rockers are designed for it. If your rockers are similar to this picture and have to pushrod cup oiling hole below the adjuster threads, these can’t be used for pushrod oiling. Picture is an older Hughes rocker.
For pushrods oiling to work the oil passage in the rocker needs to be drilled into the adjuster threads so it can be fed oil from the pushrod, through the adjuster,
Intersect the oil hole drilled in the threads and get into the rocker and shaft. A special drilled adjuster with a cutaway in the threads to intersect with the oil hole is also needed.