Opel Rallier since 1977
Thanks Guy. Mine have an upper part made a bit differently but that is the idea. I have never had a hydraulic lifter hang open.... collapse, yes, but not hang open like this one. It was pretty clean inside, but the plunger was just too tight in the lifter body. I'll see once I run this some more, but I hope that what I thought was a bit of piston slap when cold (forged pistons so big piston-to-bore clearances) turns out to be this lifter wanting to not adjust properly, and just causing a very slight exhaust leak much of the time.