Sorry but just a simple question to whom have far more experience of me:
after engine running, hydraulic lifter are pumped up in the position they are supposed to stay, and this is clear I guess. My question , is it normal under hand rotating of crankshaft that they are bleeding down, even if double or triple valve spring are installed? I've ever thought hydraulic lifters when pumped are like solid ones. Maybe I was wrong..?
When you shut the engine off, oil pressure goes away and the lifters bleed back down. That part is normal. Hand rotating the crankshaft is not fast enough to build enough oil pressure to pump the lifters back up. Once you start the engine, lifters should be fully pumped back up in a few seconds. When the engine is shut off, hydraulic lifters do not stay pump up like solid ones.
