QUESTION:
I installed a rebuild kit in my vacuum pump and everything worked great for a week. Now when I start the pump, it doesn't build up the vacuum it should. I've got a sick pump. What should I do to get it working properly?
Mark GarrettChicago, Ill.
ANSWER:
I am going to assume the vanes and gaskets were installed properly, so we'll rule that out as the problem. The best way to bring your pump back to good health is to diagnose several potential problems, one by one.
First, turn on the pump and check for sounds that
