Deisel injection pump , no fuel to injectors

I had huge problem with my MF 65 deisel pump.
So i changed the pump to an working one.

Still same problem, the pump doesn't send any fuel to my injectors.

The fuel comes to the pump, and i can bleed the bump as i should. But it doesn't go to neither one of the injectors. What can be the problem?

It drives me crazy.

So when i mensioned this for everyone, all said that the pump has stucked... yeah right..

/Andreas

I'm going to try to remove the injectors, and insert som diesel fuel and remount the injectors to see if it wants to fire. maybe then it will work?, i dunno.

out of ideas and starting to hate that tractor. hehe..

but i will never let the tractor win

So i've contacted several dealers, repair guys and all said that it was the pump..

Thats why i bought a new pump, this pump works for 100% sure, becouse i took it off an working engine..

I've seen the gears turning and also the pump, becouse if you look at the little gear that comes from the pump with 3 holes in it for each bult you can see it turns, also if you touch the pump you can feel it "working" when you run the starter.

On the old pump i also opened the big hatch/plate front of the pump, to see the wheel inside turn ( the weel with the Letters G, B etc).

One thing is wierd, wich i remember now.
When i dismounted the old pump and remounted the newer one, i discovered that the small gear in front of the engine, where i fit the injector pump in, feeled a little bit loose, i could move it about 1cm up and down, so i needed to lift it about 1cm to be able to insert the injector pump.

And since it turns, i thought that was normal.
Maybe it's not, maybe i need to dismount the whole front of the engine?.. Lots of work :(

You may remove the pump and turn the engine with the starter and look if the pump coupling flange is turning....if not timing gears may be stripped.

Just my 2¢

Joe Ferguson

I changed the pump becouse i "thought" the old one was broken, since we bleeded the system for air 10-20 times, but still no fuel to injectors.

everyone keeps telling me that the pump was broken. Ok, fine i can accept 400$ if a new pump will make it work..

Well, it didnt!!.

Ofcourse the pump is remounted with same markings and times as the old one was, even this there should come a little fuel to injectors i belive.

Yes, it sounds like a broken pump, thats why i bought a new one, that worked!. Still same problem.

What you mean with start the engine with starting fluid?, i mean, i can't get any fluid to the injectors, how should i then be able to start it with starting fluid?,

or you mean ether, that i sprays into the airintake?.. but that is not healthy for the engine..

Timing marks, you mean on the pump?. not sure what you mean here.

Thankyou!

Yes, i've changed the fuel filters, and everything is fitted correctly.

The tractor is fitted with a lift pump, i've changed the packing into it.

Yes, if i lift it by hand it comes a good trickle almost a jet from the injector pump.

I have not removed the tap from the tank and checked the strainer, i will do that tomorrow, thought it couldn't be that since the liftpump works perfect when pumping by hand.

Okay, so i should no more try to insert some fuel into the injectors then. and don't try ether.

I dunno what to try anymore.

I have also removed the small plate/oil refill lid and verified that the pump do turn when running the starter.

1. I have the original instruktion manual
2. I have the original workshop manual
Doing the bleeding just acoording to the instructions, wich doesn't help.

Just lost so much money on this tractor so i think i will put it out for sale today.
it's sad..

Thankyou anyway for the tips, i appreciate very much.

/Andreas

Okay, so i

Yep, i've tried everything, also opened the screws on both filters, to bleed them. And only clear diesel comes nowon.

everything is checked, and fuel reaches the pump.
havn't checked the fuel tap on the tank yet, i'll do that today. Still sounds wierd , i mean when the fuel reaches the pump.

Thanx!

/Andreas

Just a thought and assuming it is a Bosch type pump - what position is the furel rack in. I assume that you have put it in mid position or higher to try and start. This should turn the plungers so the pumps admit fuel. If in the off position extrem end of stroke, there will be no fuel passing through.

Just a thought - try with the fuel lever/throttle in the mid position.

HTH

J.

Sorry, I was using the term Bosch loosely - meant that it was the inline barrels connected by common fuel rack. With the fuel rack in the off position - or out of proper adjustment, the fuel will never get pumped as the scroll passes the fuel. That was what I meant to say - and yes, you did pick up on what I was alluding to. Maybe there is a fuel shut off or extra lever somewhere. Just a shot in the dark that is all.

By the way, I enjoy reading your tips and what-to-do's - thanks.

J.

it's an CAV DPA pump.

I'll try the gas level

thanx!

/Andreas