My lifter valves are extra stuck in the underside of the bucket, the banging method definitely doesn't work, so I've tried pulling out with lockjaw plyers, but that seems to damage the black collar which holds the valve assembly in the lifter. Do I pull on the black colar, or pull on the stainless valve assembly? (which contacts/opens the inlet/exhaust valve) is there a method or a tool that doesn't smash up the lifters too much?
Cheers