That isn't a "cap". That is the old, stuck pump piston. It must come out.

edit: If you have the aluminum piston out, There is a valve in the bottom of the hole. It should not be removed.

Last edited by cletis; 11/10/2010 4:16 AM.
"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
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