Thread: Oil tank vacuum - softail

Re: Oil tank vacuum - softail Thanks Glider, thought I should add, - just got E-mail back from dealer service manager after your reply who advised - H.D. use positive and negative pressure to help scavenging from engine as it is a fully sealed system,(not really sure what that means) said all OK - I havent been riding Harleys long so not fully familiar with them yet

Re: Oil tank vacuum - softail True that they use pos and neg pressure but that is the result of the oil pump doing it's job and how it operates basically. There shouldn't be any noticable vacuum in the tank after it is shut off. It should equalize when the engine stops running. __________________ Psssst! Please stop by the " self help section " for maintenance tips, diagnostic codes and much more. click me !...