" My SD33 has been a hard starter since I bought the boat a few months ago. Now when it starts it has very low power when put in gear, but revs fine with no load. It ran great a couple months ago when I delivered it to the Central California port, so I'm thinking the problem is in the fuel delivery. I ran it with inadequate filtration for a couple hours, and seems to have brought on the problem. Since the problem developed, I've rebuilt the injectors, installed new glow plugs, but still no power. I've run new fuel lines and added a new filter system from the tank to the pump, and added an electric pump in line to assist the mechanical pump. Question: Is there any way to clean the injection pump without disassembly? "