The problem went beyond the adjusters...
Crane and then Mopar sold defective rockers, they were not hardened properly and the valve stem would punch a hole into the rocker tip..

I went through a set complained to Mopar they referred it to Crane, who was just entering bankruptcy Chapter 11....
I talked with the Crane engineering chief and he tried to blow it off with the sunshine treatment.. It was known issue that Crane hoped would go away. Very sad a major brand doesn't stand behind their products..

Getting nowhere I chucked the Cranes into the dumpster and upgraded to Harland Sharp, never looked back..

Just my $0.05...