What's going on? I don't have the pump. I use a large funnel that has a small removeable mesh screen. The problem with doing it this way, is my wife has to hold the funnel, while I pour the oil. She don't mind & it works pretty good. I think I got it at Walmart. The pump would be easier for one person operation, if they do work. Take care & happy holidays.
Coleman 3300 gasser