It's simple.
Lazy asses at Chrysler sell you Rocker shafts for W/2-5 stuff that were originally designed for the T/A head. Don't matter if you have the "econo" shaft, which is exactly the T/A piece, or the W-2 shaft that has the mounting holes offset.
All the oil holes that lube the adjusters are in the position for T/A rockers. Therefore, if you are using W-2 offset rockers, the oil holes in the shaft never line up with the oil hole in the rocker. All you have to do is look at it. There is a small feed hole drill in the rocker right at the bottom of the the adjuster. That hole MUST line up with a hole in the shaft. It don't. Never has. Chrysler KNOWS it. And they NEVERTHELESS fixed it.
The only way I know of to fix it, is to blue the shafts, mock up the rockers on the shafts with no adjusters in them, bolt them to the head and line the tip up on the valve stem and with a fine scribe, go through the hole in the rocker and mark the shaft.
Then disassemble the whole thing and redrill the holes. You need a carbide center drill or better because the shafts are hard.
I always mark the shaft so it stays on the same side, and mark each rocker so it goes back on the same place every time.
BTW and FWIW over the years, I have worked on several hemi's that were untouched, factory deals. The holes in those shafts don't line up either. That's why every now and then, you burn a pushrod.
It's stupid really. Should have been fixed decades ago.
Last edited by madscientist; 11/04/16 04:36 PM.
