D6B fuel injector problem

If it's been sitting that long and the fuel gummed up it probably just needs a good cleaning......and yes dismantling is a requirement.

diesel does not go bad in two years? i have started tractors that have sat twenty years and still have that fuel in the tank. unless you have a fungus growing in your fuel. the fungus grows between your diesel and water in a thin layer between. not real familiar with the 44A's but i believe they have the same scroll fuel system as the D333C.
those have a small fuel screen buried at the injection pump. they are real hard to see,
between the pump and block. follow your fuel supply line to see if it goes to a fuel screen. the ones i have been around are about the size of a D size battery. they are hard to see and do plug up, especially if you have a fungus in your fuel. the fungus will be in this screen and is a real slimmy substance.

otherwise it sounds like you may have air in the fuel system. i would try every option before pulling your pump. remove your glow plugs so you can crank the engine faster and easier and see if you can get fuel to the other five injectors. sometimes they bleed real hard, takes some time to get them bled out.

Try to release the pipe of No. 3
on his connection to pump
Inserted into the pump detergent
Even brake fluid.

Looks like an internal pump failure
Plnger Stuck
Internal blockage

Sure you have good compression.
Before you start to dismantle
Do all the basic tests

itzik

This is what Cat has to say about fuel storage and life......anything beyond is a crap shoot.

I can spray cleaner down both #2 and # 3 pumps and air gurgles back to the filter. Seems like the plungers are both stuck open. No matter what the revolution of the engine is and governor position is.

What tool and can I remove the plungers from the top of the pump externally ? Also how do you check lifters on these since there is no side plate ?

Thanks for the help