Do you have a spring on the outside of the pump arm? Visible without taking it apart?
The bolt spring would be enough to return the pump with no air, but once it's gassed up the bolt will latch to the hammer and then the bolt spring will have no impact on the pump
Originally Posted by oldschool
the auto industry eats its young
spent several years in the industry - don't do it
shoveling horse [$&*!] is a better job
I am "SPARE EDDIE"