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06-10-2016 07:17 PM #6
No Problem
Tap the hole supplying oil to the stand/shaft (on top of the head). It's about 5/16" and that's tap drill size for a 3/8"-16 tap. Now you can thread in a short 3/8 set screw, you just don't want to use hardened ones. You can drill maybe a 3/32 hole thru the set screw this size will be a good starting place. If you want to restrict more you can remove these set screws and install another set with smaller holes. they screw in and out with a 3/16 allen wrench after you remove the rocker assembly, no need for loc-tite the set screw is trapped in place.
But all this is really only a Band Aid to loose clearances around the rockers, you should have no more than say .004, make sure the holes in the shaft are down. your HV pump wouldn't drain your pan if it had no where to pump it out. remember pumps don't make pressure, restriction does. Hope this helps
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