Originally Posted by FoldedBrick
sorry for the unclear post.
the back cap wont unsrew from the plunger. im trying to access the bleed button.
have you tried using the correct sized allen wrench in the back cap, and then with a crescent wrench grab the flat sides of the plunger and rotate counter clockwise.
If that doesn't work try heating the assembly with a hair drier and the do the same as above. Old paint might be stuck inside of it.