testing injector pump

how can you tell if injector pump work right i have fuel to the injectors but won't start up . was running fine for 30mn then like the fuel was turn off.

Remove ONE injector assembly from the cylinder head. Re-attach it to it's injector line with the injector assembly pointing out/away from the engine. Don't worry or connect the return line. Crank the engine over and see if you have fuel squirting from the end of the nozzle tip. Keep your hands away when testing. Remember, the starter/batteries must "spin" the engine over with speed or the injection pump won't work.

Bradly, not to sound like a smart a## but is there fuel in the tank? 



Edited by Clay - 12 Oct 2011 at 8:43am

There is no chain. The timing doesn't change by itself.

so how can i check if the pump seized up and took the shaft of there was no noise when it turn off. i have a day off coming to test this out. thanks to all that are helping out

i remove the cover and the side thats in front spins around i did it two times the back one that has a line in it don't 

ill be testing that tomorrow the wife think spend to much on my stuff so had to spend the day with here. i told'er the snow is coming and she be out there shovel it

ok i took the line of at injector and turn it over no fuel coming out. so i took off the return line and put vacuum pump and there was no fuel. the gasket i made for fuel bowl was blow in up blocking fuel line. but i put the vacuum pump on and when got good fuel out it started right up ran for about 15mn then same thing like fuel turn off. what fuel flow should be going in to there looks like a fast drip

Disconnect the sediment bowl and unthread it from the bottom of the fuel tank and while you hold your finger in the hole of the tank have someone else ( your wife?) take an air compressor and blow all the crap out of the inlet to the sediment bowl. I am assuming you have changed your fuel filters???

What tractor model are you working on?

The filters on mine came from Napa. Tossed the boxes long ago. I don't even bother with O'Reilly or the other cheap parts places.

Using the Agco parts web page and crossing on Wix web page, Primary is Agco #74048789 and crosses to Wix 33102, The secondary is Agco 74048796 and crosses to Wix 33101. Any parts store should be able to cross the Wix number if they don't carry them (they will be able to do that in the computer and don't have to go to a book.) O'Rielly's and Bumper to Bumper both carry Wix don't let them sell you a house "brand."  If you go to Napa get at least the gold filters numbers 3102 and 3101. They will tell you that the cheaper ones are made by Wix and they may be, but they are built to the stores cheaper specs.

Don't for get to check and clean the screan in the top of the sediment bowl.

What kind of crap? With the removal of sulfur from diesel comes more algae growth. If it's snot like and brown, green, or clear, you may need to treat with some bio-cide to kill off any algae/bacteria growing in your tank.