That is what I thought! John may have something also but I am 80 miles from my boat and cannot get back to it for a week or two. Dieselboy may be on something also, because one time when it would not start right a way, I did bleed the system at the filter on the engine and their was air! So when I can get back to the boat, I am going to read the manual again, and then start looking for air leaks and check valves. So I want to thank you all for the help and I will post back what I find out.