Hi Gang - got a bit of a poser. I recently rebuilt the top end of my A10 engine - re-bore, new pistons, new valves/guides/springs and generally spruced her up. After running in for a while she started leaking around the head - not blowing, but oil seeping out from around pushrod tubes and oil ways - a perennial problem. Anyway, I stripped down to barrel, locktited the studs for good measure and put on a new head gasket and bolts, locktiting and torquing down. So far so good, BUT when I went to refit rocker box I noticed the push-rods on the left weren't moving with the engine. They're seating correctly, and were fine before I popped the head off. Can followers on one side only seem stuck, for want of a better diagnosis. Other side is fine. Any ideas, before I pull the whole thing down again? Anyone ever had this? After 37 years of A10 ownership this is a new one on me. Many Thanks, Steve.