Tractor has another fuel problem

[Fragger]

My Massey does that the switch has a short due to corrosion and i have to wiggle it to stay on. spray little starting fluid to intake if it starts and dies then it be in your fuel delivery still , if it didn't start then it be your soark

 

[Crookedcreek]

Your New Holland should have a bleeder valve where the fuel enters the diesel pump. It is on the pump itself, after the filter, bowl and shut off valve. Loosen the bleeder valve (12 or 13mm), and wait for fuel to flow out of the top of the pump. If you have fuel, tighten the valve. You now know you have fuel at the pump, and can eliminate everything in front of the pump. If no fuel, your problem is in the tank, line, or filter assemblies. If you have fuel at the diesel pump, Loosen the fuel lines heading to the injectors one at a time while cranking the starter. (you may need assistance if your safety equipment is still in place on the tractor, seat switch, clutch switch, brake switch, etc). You should see fuel pumping from the top of the diesel pump from each line, as you loosen them. Make sure to re tighten those lines, and only check one at a time. If you have fuel in front of the pump, but not going to the fuel injectors, you probably have a diesel pump failure. My New Holland is a couple generations older than yours, but the pump is mechanical, not electric, so no fuel equal no pump.
Best of luck.

 

[Crookedcreek]

Thank you this will be what I was going to check but I have put a hold on working on it as my husband had major surgery. Plus I am calling my friend who is a diesel mechanic and ask him as he has seen this tractor before and knows it. Usually when I call him he just tells me exactly whats wrong I do what he says and the darn tractor is fixed. I may just pay him to come over and fix it for me. I am just overwhelmed right now. The tractor is a 2008 so not new and I know what your saying is probably right .

 

[Crookedcreek]

TractorData says yours is a diesel. There is no fuel bowl, per se. The fuel path will be tank->filter->injector pump. Some, maybe most diesels, have an electric pump that helps move fuel to the injector pump.

If your observation is that fuel is present in your filter, then you still have not assured that fuel is getting to the injector pump. For instance if you have a plugged tank inlet, then the injector pump is trying to create vacuum in the line. It will not suck your filter dry. Same lack of fuel happens if there is a break/leak/hole/crack in that fuel line, for now the injector pump is sucking air instead of fuel. Even the smallest amount of air will stop an injector pump from pumping.

As @nyone recommends, crack (loosen) one of the injectors at the engine head then crank. I expect no fuel in your situation. Next, if you have an electric fuel pump, ensure that the pump is delivering to the inlet of the injector pump. While you are at it, ensure that the fuel filter has not accumulated water - drain it of water if there is some. One more thing I don't think I read, is to ensure your fuel filter is not restricting fuel. Your conditions may dictate replacement.

I have had to replace a bad electric pump and replaced fuel hoses that were cracked and allowing air into the line. On one tractor, I even found fuel tank trash that had accumulated at a 90 degree fitting leading into the fuel filter - so make sure all lines are clear.

What's "cranking but not turning over" mean?
Cranking; the operation of the starting turning the engine. Is the same as the engine turning over.

Diesels are fairly simple. They need compression, fuel and air. Find what one you dont have. For fuel start at the injectors and crack a line loose when cranking. If you have no fuel there move back into the system.

It means what is says it cranks but doesn't run, there isn't anything wrong with the starter...

 

[Crookedcreek]

TractorData says yours is a diesel. There is no fuel bowl, per se. The fuel path will be tank->filter->injector pump. Some, maybe most diesels, have an electric pump that helps move fuel to the injector pump.

If your observation is that fuel is present in your filter, then you still have not assured that fuel is getting to the injector pump. For instance if you have a plugged tank inlet, then the injector pump is trying to create vacuum in the line. It will not suck your filter dry. Same lack of fuel happens if there is a break/leak/hole/crack in that fuel line, for now the injector pump is sucking air instead of fuel. Even the smallest amount of air will stop an injector pump from pumping.

As @nyone recommends, crack (loosen) one of the injectors at the engine head then crank. I expect no fuel in your situation. Next, if you have an electric fuel pump, ensure that the pump is delivering to the inlet of the injector pump. While you are at it, ensure that the fuel filter has not accumulated water - drain it of water if there is some. One more thing I don't think I read, is to ensure your fuel filter is not restricting fuel. Your conditions may dictate replacement.

I have had to replace a bad electric pump and replaced fuel hoses that were cracked and allowing air into the line. On one tractor, I even found fuel tank trash that had accumulated at a 90 degree fitting leading into the fuel filter - so make sure all lines are clear.

ystarter...yes it does have a fuel bowl as I have loosened the bleeder screw on it to get the air out of the system....this tractor self Primes at the fuel bowl....

 

[Crookedcreek]

Yes thats it !!

 

[Jerry/MT]

I am getting fuel to the fuel bowl so there isn't a clog plus I cleaned the tank put all new fuel lines on plus a fuel shut off solenoid on. The problem is after the fuel bowl.

Did you remember to bleed the entire fuel delivery system after you replaced the fuel lines?

Many injection pumps have a bleed screw on the pump itself and that needs to be opened to allow fuel into the pump. I don't think you have a lift pump (sometimes called a transfer pump) but if you do many have screens that can clog or the pumps themselves fail. So if you have one of these make sure you have fuel output to the injector pump when you crank the engine.

Make sure that the fuel solenoid is operating. You should hear a click when you turn the key on.

I would recommend a full bleed of the system through to the injectors. Make sure the battery is fully charged before you start this process because one often has to do a lot of cranking to force all the air out.

Hang in there, you're doing a good job under trying circumstances.

 

[nyone]

It means what is says it cranks but doesn't run, there isn't anything wrong with the starter...

That's called cranking but dosnt start/run.

 

[t_bois1]

Did you finally get the problem resolved?

 

[t_bois1]

Did you finally find the issue?