Deutz Engine not firing

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Peterneg

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Joined
Oct 31, 2013
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3
Hi everyone. I'm new here but what a fantastic forum! I have a problem with the engine in a skid steer loader. The machine was working fine recently but stuck in a field, started to cough and splutter then cut out. It started again just enough time to return it to the garage then cut out. The engine would turn over, fire for a second and then cut out. After a few attempts to start it, it would not fire at all.
Cleaned the engine down with degreaser and a hose to see if there were any leaks that might hint at where the problem was. I discovered the fuel lift pump had a screw overtightened that has damaged the pump. I replaced the fuel lift pump and some of the fuel lines whilst I was at it. The engine still will not fire. I thought I remembered reading somewhere that the Deutz BFM 1011F does not need bleeding when out of fuel. I'm not sure about that though. What are your suggestions? Do I need to bleed the fuel system? Never had to bleed a diesel engine before. What do I have to do to bleed it, and is this going to solve my problem? Thanks in advance guys!
 

OldMachinist

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May 24, 2006
Messages
2,748
You didn't state what model or brand of machine you have but it sounds like the fuel pick up line in the tank is broken.
 

Tazza

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Dec 7, 2004
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16,829
Sorry - It's a Thomas 243 skid steer. Would the pick up line be broken if fuel is getting to the lift pump?
I believe you will need to bleed the system, i just don't know how your machine is setup to do it.
Does the pift pump or fuel filter have a hand pump on it at all? if so, crack the fuel line just before the injector pump and bleed it till you get a good flow of fuel without any bubbles.
You may even want to replac ethe main fuel filter before too, see if it is causing a restriction.
 
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Peterneg

New member
Joined
Oct 31, 2013
Messages
3
I believe you will need to bleed the system, i just don't know how your machine is setup to do it.
Does the pift pump or fuel filter have a hand pump on it at all? if so, crack the fuel line just before the injector pump and bleed it till you get a good flow of fuel without any bubbles.
You may even want to replac ethe main fuel filter before too, see if it is causing a restriction.
I can't see a hand pump on either the fuel filter or the lift pump. Does that mean I have to bleed by cranking the engine over with an injector line loosened off to release the air?
 

Tazza

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Dec 7, 2004
Messages
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I can't see a hand pump on either the fuel filter or the lift pump. Does that mean I have to bleed by cranking the engine over with an injector line loosened off to release the air?
Simply cranking will not always work, there should be something to prime it. There isn't a lever on the lift pump at all?
 

kroog

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Joined
Oct 4, 2008
Messages
192
Simply cranking will not always work, there should be something to prime it. There isn't a lever on the lift pump at all?
Nice to hear of a T243HDS owner besides myself.
I had the same problem and found the return line from the injectors to the fuel tank split and was leaking off.
I replaced the line and no more problems.
With older engines, the rubber degrades with petrol and can also swell and completely close off internally.
Please give me some info on your machine.
You can find my info in my posts.
 

mmsllc

Well-known member
Joined
Dec 29, 2015
Messages
715
Nice to hear of a T243HDS owner besides myself.
I had the same problem and found the return line from the injectors to the fuel tank split and was leaking off.
I replaced the line and no more problems.
With older engines, the rubber degrades with petrol and can also swell and completely close off internally.
Please give me some info on your machine.
You can find my info in my posts.
Run a hose to the fuel filler neck & install an electric fuel pump. Re-prime the fuel system. Try to start the engine. That way you can determine (QUICKLY) if the engine is ok, or if there are larger problems. That would rule out 99% of the mechanical / engine related items of any problems. Then just restore proper fuel flow to the engine afterwards to run it like normal.
 

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