Help! Can't get injector pump primed

[slowzuki]

Help! Can\'t get injector pump primed

Ok our haying partners have a Case/IH 585, yesterday one of them finished tedding and noticed the tractor felt slugish so stopped it.

She asked me to take a look at it and it was out of fuel (saddle type tank with a bad transfer line so it looks 1/2 full on the filler side)

So I put some fuel in it and ended up replacing the fuel filters, blowing out the line to the tank etc to get fuel to run out the last drain.

I cracked all the lines to the injectors at the injectors and cranked away but nothing would come out! It has a Bosch pump and I don't see a priming pump lever to save cranking.

Please help!
Ken

 

[normde2001]

Re: Help! Can\'t get injector pump primed

"blowing out the line to the tank etc to get fuel to run out the last drain."

I'm not sure what that means and am not familiar with a Case/IH 585, but, assuming it is gravity feed from tank to injector pump, you need some way to bleed the air from the line leading down to the pump. Yanmar has 3 bleed screws to "crack" in sucession from tank to pump.

 

[ScottAR]

Re: Help! Can\'t get injector pump primed

I also have no experience on that exact tractor but I have ran out of fuel a few times... /forums/images/graemlins/blush.gif

Are the fuel filters spin on? If yes, fill them with ATF and then bleed again. The thicker liquid will start the priming action quickly and it won't hurt anything...

If they are sight glass, fill them with fuel.

My yandeere has a bleed bolt/plug right on the pump...

Check the shop manual or call the dealer for instructions on bleeding.

 

[slowzuki]

Re: Help! Can\'t get injector pump primed

Got it bled to the filters, had to find the bleed on the pump, turns out it is just the banjo fitting!

The blowing out the tank line is due to it being a 20 yo ag tractor, junk gets in the tank and when it is run down it gets sucked into the fuel line /forums/images/graemlins/frown.gif

Hopefully will get it going tomorrow!
Thanks!
Ken

 

[MMM]

Re: Help! Can\'t get injector pump primed

I've had same problem. Remove shutoff valve under right saddle and flush tank with fuel. All kinds of crap will come out.

 

[slowzuki]

Re: Help! Can\'t get injector pump primed

Hello, all is well and our tractor is running again. Only took 4 bleeding sessions and about a km of bump starting to prime the injector lines!

 

[Jayfish]

Re: Help! Can\'t get injector pump primed

I'm having the same problem on my 585 with getting my fuel system primed. So what exactly did you do. I dont get the banjo nut thing?? And I don't have fuel coming out of my fuel line that comes into the filters. I blew through mine and can hear it bubble in tank. I put on brand new filters and filled them before putting them on. I have turn motor over and cracked lines at injectors and nothing happens - Can you let me know something. Thanks !
Thanks

 

[banjodunn]

G'day I think the banjo they are talking about is where the fuel line from the filters goes into the inj pump. You may have to crack the bolt/nut and pressurise the fuel tank slightly until you get good fuel there, from there crack you injector lines at the injector and crank it over at full throttle until you get fuel to the injector. tighten all the lines and it should start.


Jon

 

[Jayfish]

I have tried pressurizing the tank and getting fuel to come out of the line that connects to fuel filter and never got anything. But like i said I blew through it and heard bubbles. Does the case have another pump to get fuel to the filters. Like a mechanical pump??? I never seen anything. I know it's not a gravity statement cause fuel line are to high in certain points - anyway thanks I will try again tomorrow.

 

[Jayfish]

G'day I think the banjo they are talking about is where the fuel line from the filters goes into the inj pump. You may have to crack the bolt/nut and pressurise the fuel tank slightly until you get good fuel there, from there crack you injector lines at the injector and crank it over at full throttle until you get fuel to the injector. tighten all the lines and it should start.


Jon

Thanks for the info. Im not too good one here but I posted another question about the case prime. Don't know if you will see it.

 

[Jerry/MT]

Re: Help! Can\'t get injector pump primed

Ok our haying partners have a Case/IH 585, yesterday one of them finished tedding and noticed the tractor felt slugish so stopped it.

She asked me to take a look at it and it was out of fuel (saddle type tank with a bad transfer line so it looks 1/2 full on the filler side)

So I put some fuel in it and ended up replacing the fuel filters, blowing out the line to the tank etc to get fuel to run out the last drain.

I cracked all the lines to the injectors at the injectors and cranked away but nothing would come out! It has a Bosch pump and I don't see a priming pump lever to save cranking.

Please help!
Ken

You always start by openingthe tank valve and then opening the bleed screw on the filters) to get all the air out of the filter(s). When no more bubbles come out of the bleeder screw, just straight fuel, close it. then bleed the pump. Same thing; straight fuel, no bubbles. Then you crack the injectors and crank untill you have fuel there and then close them. I do it one at a time rather than all at the same time but that's your choice. The deal is to get 99.9% of the air out of the lines before you close them off.

 

[slowzuki]

Re: Help! Can\'t get injector pump primed

If you remove the supply line from the tank to the filter block at the banjo fitting (its a loop with a bolt through it) and no fuel comes out when the rear tank is full, the line from the tank is clogged. The fast way is to put compressed air back through the line to the tank.

BEFORE that, check the fuel level. The tank is a saddle shape with a transfer line between the two bottom sumps. This transfers line is almost always clogged. The suction is not on the same side as the filler and level sender, so the suction side can be empty, while looking in the filler neck, there seems to be lots of fuel.

Next is the fuel shut off valve at the bottom of the tank, someone may have closed it. I can't remember which way is open, but half way will let fuel come the banjo fitting at the filters quite well. Then you can quickly determine off or on.

 

[Jayfish]

Re: Help! Can\'t get injector pump primed

Ok so once that is all good and fuel is flowing out of front banjo on filters then is there anything else that need to be done to the actual injector pump, as far as bleeding air in the pump, not at the injectors cause I have done all that, Im just use to a primer pump pumping fuel all the way to the injector pump. Thanks

 

[Jerry/MT]

Re: Help! Can\'t get injector pump primed

If you remove the supply line from the tank to the filter block at the banjo fitting (its a loop with a bolt through it) and no fuel comes out when the rear tank is full, the line from the tank is clogged. The fast way is to put compressed air back through the line to the tank.

BEFORE that, check the fuel level. The tank is a saddle shape with a transfer line between the two bottom sumps. This transfers line is almost always clogged. The suction is not on the same side as the filler and level sender, so the suction side can be empty, while looking in the filler neck, there seems to be lots of fuel.

Next is the fuel shut off valve at the bottom of the tank, someone may have closed it. I can't remember which way is open, but half way will let fuel come the banjo fitting at the filters quite well. Then you can quickly determine off or on.

The problem with blowing back o the supply line to the filter is you blow the stuff that caused the blockage back into the fuel tank. The tank really needs to be draineed and the crud cleaned out or it's just going to keep happening and usually right when you'r doing something critical (Murphy's law).

 

[Jayfish]

Re: Help! Can\'t get injector pump primed

Well I figured it out lines had some major buildup of some kind of tar or something. It was clogged even though the other day I was getting air through line - so now i am getting good fuel to filters and to pump but I still can't get anything out of the pump - I took off lines on rear of pump and crank. - nothing - the shut off on tractor is off so it's not that. Think whatever was in the lines ruined the pump too. I took off side plats and the shaft is spinning so it's not stripped or something - So now I am in process of removing pump. What a pain. Thanks all for the help

 

[slowzuki]

Re: Help! Can\'t get injector pump primed

Jayfish! Before you remove the pump get a manual!!!!!!! You can cause major problems if you don't follow the proper procedure of locking shafts etc.

Even if you have the throttle wide open, at cranking speed, very little fuel comes out of the pump. When you say you took the lines off the pump, you mean the injector lines?

 

[Jayfish]

Re: Help! Can\'t get injector pump primed

I Took lines off at back of injector pump. And when crank nothing comes out not a drip. I have started taking it off but have stopped at unbolting from gear on front on pump , I took the panel off front cover and can see the 3 bolts and another center bolt. I have not un did those. I am pretty sure whatever was in the fuels system clogged up the pump or messed up the vanes maybe. I am going to get a book for it. I know you have to keep them in time with motor I was hoping the pump had a keyway on shaft that way you can't get it out of time but I don't know if it does. So that's where I am at.

 

[banjodunn]

G'day don't undo the centre bolt or you will be is strife you need to undo the 3 bolts . When you say the stop control was off you do mean in the run position right? Good idea to get a book for it this may show you something we may have missed, let us know how you get on.



Jon

 

[Jayfish]

Yeah the lever is in run position - I'm pretty sure whatever was in the lines contaminated the pump and plugged a check valve or something. I am getting a manual for it and then I think I might have a go at the pump too. What's the worst that can happen now. I work with precision stuff alot since I'm a full time machinist so I think I can handle the tear down. If not then I will send it off or just buy one. Thanks all. I'll keep you all informed.

 

[banjodunn]

G'day not saying you can't do it but to set up an inj pump req it putting on a bench and calibrating the output, it has to be equal or you will get one cyl running harder/slacker than the rest. It is a job best left to the experts there is a guy on here called dieseltech and he offers alot of advice and from what I understand a postal service recoing your inj pump, might be worthwhile digging him up.


Jon