hosspuller
Senior Member
MikeM22: I'll try to explain what Pumpguysc is trying to tell you. He is in the business of rebuilding Injection pumps so he's being neutral. I have nothing to gain from your problem. Which I had too, with my machine.
The material you're finding clogging the check valve is either coming from the pump internals or in the fuel supply. Your fuel filters should prevent anything in the fuel supply from the pump besides clean fuel.
So... the likely source is the pump internals. Your pump is failing. A part called the flex ring made of some type of fiber, is disintegrating and pieces of it are clogging the valve.
The material you're finding clogging the check valve is either coming from the pump internals or in the fuel supply. Your fuel filters should prevent anything in the fuel supply from the pump besides clean fuel.
So... the likely source is the pump internals. Your pump is failing. A part called the flex ring made of some type of fiber, is disintegrating and pieces of it are clogging the valve.