Especially if the fitting is in a place I don't want to put a torch on, remove the fitting. Take a drill bit that easily fits in the opening and spin it in your fingers to remove as much grease as possible. Then use PB or WD40 with a straw, spraying and pushing it in as much as you can.
Put on a new fitting (really, they don't cost much and they are the problem most of the time) and pump away. Almost always works. If it doesn't, time to disassemble or replace.
Last edited by Jim Sears; 09/04/2014 5:09 AM.
