It wouldn't surprise me if alot of mechanical pumps have been on the shelf long enough to have dry rotted diaphragms.Been a hectic week! Finally got gas pumping. My "new" pump was bad. I purchased a second NEW pump and since I still had a hose ran to a gas can I just went ahead and connected it that way. Fired right up! Tomorrow we hook it back to the fuel lines and see if the new hoses and valve switch will work. Thanks for all the input! I cant upload the video of it running but it sounds better than an electric F150 for sure.