I have a Massey 550 with the 354 Perkins. Combine might start and run 30 minutes just fine and quit. Let is sit for 5 minutes and it might start and run 3 minutes. I worked a day or two before I found the problem. I even had put a new fuel transfer pump on the back of the engine.
Anyway, after 24 hours of not running I was working on it at night. I had just put a new fuel pump on and was connecting the line to the fuel pump. There is a check valve on the fuel line which hooks to the fuel pump. By chance I looked into the fuel line check valve. The steel ball didn't shine like metal should have. I tapped it on the combine and a big wad of soybean chaff came out. End of problem.
Here is what happened. A bunch of soybean chaff and dust had blew through the fuel tank screen filter. Yes, the screen was pulled down into the sediment bulb. Eventually the wad of soybean chaff would work its way up to the ball in the check valve and plug the hole. The wad was too big to pass through. Sort of like a calf being born breech. After the engine died and some time had passed the wad would float away from the check valve (downward) and the engine would start. Eventually when the engine was started it would be sucked upward again against the check valve and the engine would quit. Once the fuel line was clean the engine ran normal. The problem was the check valve hid the chaff blockage. Goodluck.
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