The Cape Dory Board

Sounds like you may have a small hole/perforation on your pickup tube inside your fuel tank and it is sucking air with the tank 1/3 full. You could test by filling your tank completely where any holes in your pickup tube are submerged in diesel. Your engine should run until the holes are sucking air...

Thank you for replying back. I replied to your response last night, but I do not see my response shown so I guess the goblins got it! I am somewhat apprehensive about this phase of the project, but it is one step at a time, as I keep telling myself. The boat is currently being arranged for transport...

I am a new member and have recently purchased a 1981 CD33 that is going to require a lot of work before I can confidently take her out on the water without the possibility of springing a leak. Namely, the seacocks are frozen with the backing plates near rotten, the shaft packing, motor mounts, etc, ...