Combines How to efficiently clean 1660 fuel tankIJ

your problem sounds like one I had this fall. it was the plugged filter screen inside the fuel tank you take hardware off the bottom of the tank and blow out the screen. best of luck wild bill

How many filters are on the fuel systemIJ Ours is a 1989 1660 with about 2600 hours on it. It is one of the first ones with the Cummins power plant. I think it's the 505ci 8.3 liter. Never had a problem with our engine. The only thing is the return fuel line has no fuel returning to the fuel tank. I blew through it before the last field and it seems I can hear air leaking from somewhere when I did that. Still no return fuel. What could be the problemIJ Doesn't seem to affect the engine.

Seems that I have solved the fuel problem this morning. Tank and fuel line to water separator seemd to be OK, but some trash have been accumulated at the tank shut off valve located before water separator. This seemd to be the problem. After cleaning the shut off valve problem dissappeared. After thinking about this when working in the combine today, this valve could be only place for trash to accumulate, because fuel did not went through any filter yet, and design of valve does not permit bigger particles to go through it. Seems to me that my 1660 deos not have anything in the tank (screens, etc.),or this is factory built in. FYI My combine does have three fuel filters (one water separator on lH side at the rear of machine and two filters coarse and fine one located in engine compartment). Anyway thanks for reading my message.