Injector trouble

[DennisStahley]

dennis if you are getting diesel out of your lines going to the injectors you do not have a solenoid turned off. If it is an older tractor it might not have an electrical solenoid. I would higly recomend calling a dealer of your tractor and asking them how to shut it off before you get it started. It will probably have a mechanical shutoff somewhere. This will be a knob attatched to a cable like an old time mechanical choke cable.

Hi Gemini5362

I went to the dealer today and no there is not a solenoid as you say, there is a manual shut off or decompression lever I guess ya pull to shut it off,there is not a cable on it but it is on the front of engine, so I will try this.
Thanks
Dennis

 

[DennisStahley]

The older ones don't usually have a solenoid. Actually my 1999 model L2500 does not either. Dennis is getting fuel out of the top of the pump...where the injection lines connect.

Still say as others it's probably something simple...but it's dang hard to reach through the internet.

Hi RobJ

Yes it probably is something simple (but so am I) and we just haven't found it yet. And you are correct there is not a solenoid on this old model, and I am getting diesel so getting closer.
Thanks for the reply's
Dennis

 

[DennisStahley]

Take a look at your dashboard to see if there is a pull knob that operates a shutoff in the injector. My 1966 Massey Ferguson 135 has such a knob (pull out to start the engine with the key switch, push in to shut the engine off). My guess is that you have a key-switch-operated solenoid valve for that purpose since your Kubota is a 1970s vintage tractor. It may be stuck partially closed.

Hi flusher

No there is not a knob but the cable is off the decompress lever which shuts it off I think? The dealer told me today there is no solenoid in the pump so that is not the problem(dont know what is either) But am trying everything you all tell me to try getting closer.
Thanks for the help keep sugestions comming
Dennis

 

[DennisStahley]

I would not reccomend that he tears the injector pump apart. Some of us especially me do not have the tools or the required skills to tear an injector pump apart and put it back together again. If I tried that it would be an expensive visit to the shop before that injector pump worked again.

I dont think he has any problems other than air. I am not a diesel mechanic but since my old massey ferguson did not have a fuel gauge I am an expert at running out of diesel. A couple of times when it did I thought something was broken because I could not get it to bleed enough to start. The way he talks about having air bubbles come out sounds like air in the sytem and the way the diesel kind of squirts out sounds exactly like what I saw when I had the lines off. Diesel woukd kind of squirt out a bit but nothing major. If he is seeing it shoot an inch that is more than I saw. Here is what I would recomend if he has the ability to do it.

Put everything back together find the bleed valves on the pump itself. If you need to call a dealer service department and ask them. Open up one bleeder valve and turn the starter over until it is solid fuel. Close that then open the other bleeder valve and turn the engine over until it is solid fuel take one line loose at the injector. Leave it hooked up just loosen it until diesel fuel can squirt out of it Get someone with a pickup to tow you. Put the tractor in high range and the lowest gear of that range push in the clutch until the tractor gets moving then let out the clutch. If the truck pulling you is not big enough to pull at that range then keep going up in gears until the truck can pull the tractor with the clutch out. Pull the tractor slowly. 5-10 miles an hour. Pull for about a half mile then tighten the 1st injector line and loosen the second one. during this process you should be seeing fuel shooting out of the open line while you are being pulled. It will not be like anything coming out of a car wash hose just see it squirting out some. After another half mile stop and tighten the second injector line and loosen the third. Pull the tractor again for another half mile. The half mile is just subjective i think I actually pulled mine a total of 1/2 mile for three injectors but like I said I am not very patient. This should get everything bled and it should start while the third line is loosened. There were several times with my Massey that I could not bleed it with the manual bleeder or the starter ( I am sure due to a lack of patience on my part) The towing it method worked every time. My massey was a 4 cylinder and usually it started by the time I took the third line off so yours might start after you get the second line bleeding. If it does then just stop the tractor and let it bleed for a couple of seconds then loosen the third line and let it bleed. I would go back and do all three lines a second time and see if the tractor sounds like it is running smoother.

If you do not get fuel out of the first line then you might have something shut off but since you are getting fuel out of the injector with the lines off I dont imagine you do.

Make sure you call a dealer and ask how to shut it off. If you wind up having to shut the fuel off at the petcock you will just get air in all the lines again and you will be repeating this procedure over.

good luck

Hi Gemini5362
Yes I will give this a try as I said went to dealer today and talked to a tech. he said no solnoid in pump he said the thing he would check first is the compression to see if I had enough to start it. I ordered a comp. tester off E-Bay and should be here thursday I hope. There is a decompression lever to turn off if I get it started I think? But I will try some of this ideas tomorrpw and see if any luck.
Thanks for the help keep it comming we will pervale(haha)
Dennis

 

[gemini5362]

my kubota has both a decompression lever and a manual fuel shutoff. The manual fuel shutoff is to stop the engine when it starts. The decompression lever is to aid starting the motor. If the decompression lever is open it will spin extremely fast. If it turns over just a normal engine sound turn over like a car does or something like that the decompression lever is not open. On my older kubotsa b6100 I have a knob that you pull on the right side that is for my fuel shutoff. I have a knob on the left side that you pull that is for the decompression. both knobs are attatched to levers on the engine and have to be pushed back in to make things work. I still think your biggest problem like I said is air. Do you have any way to pull it like I suggested ?

 

[DennisStahley]

my kubota has both a decompression lever and a manual fuel shutoff. The manual fuel shutoff is to stop the engine when it starts. The decompression lever is to aid starting the motor. If the decompression lever is open it will spin extremely fast. If it turns over just a normal engine sound turn over like a car does or something like that the decompression lever is not open. On my older kubotsa b6100 I have a knob that you pull on the right side that is for my fuel shutoff. I have a knob on the left side that you pull that is for the decompression. both knobs are attatched to levers on the engine and have to be pushed back in to make things work. I still think your biggest problem like I said is air. Do you have any way to pull it like I suggested ?

Hi Gemini5362
Ok I know where the decompression lever is I will have to look at my manual to see where fuel shut off lever is if it has one? The tech. didn't say anything about it but maybe he didn't know I was this dumb to not know about a fuel shut off lever(haha) I will check this tomorrow, I know there is a lever on top of or beside the pump that controls the pump I dont know if this is all it has the tech. told me it was a simple thing just a slide bar to pump to get fuel??
Thanks for input I will ck. this out tomorrow, keep em comming we will get this thing going sooner or later, I am going to see if I can get someone to pull me to get it started like you sugested.
Dennis

 

[mopacman]

you said that you got a small amount of fuel out of the pump. This is normal because the pump pumps only the amount of fuel that it needs to run. their is a fuel shut off lever on the pump. my L245DT is out of town so I cant look at it to tell you where the lever is exactly. You can use starting fluid but do not use glow plugs at the same time. If you are getting fuel out of the lines at the Injector you are very close to getting it started. If it has a block heater plug it in for about 40 minuts, this will help it start.

 

[DennisStahley]

you said that you got a small amount of fuel out of the pump. This is normal because the pump pumps only the amount of fuel that it needs to run. their is a fuel shut off lever on the pump. my L245DT is out of town so I cant look at it to tell you where the lever is exactly. You can use starting fluid but do not use glow plugs at the same time. If you are getting fuel out of the lines at the Injector you are very close to getting it started. If it has a block heater plug it in for about 40 minuts, this will help it start.

Hi Mopacman

well it is something I have got a response from someone that has a L245DT no one I have talked to has one of these old tractors.yes I am getting fuel to the injectors now, and as for the lever I think it is next to the pump a control lever and I think it is sliding like it should?I was told by the. tech. at the dealer here in town that I should check the compression first as it needs lots of compression to run, but I dont think this is my problem, I think I still have air in fues even though I have blead both the filter and pump when I took off injector line was getting aie still, maybe I did not crank it enough to get the air out I will try one at a time today and see what I get. Thanks for the reply and if you can see where the lever is and take a pic. of it and send it that would be great.
Dennis

 

[john_bud]

The older ones don't usually have a solenoid. Actually my 1999 model L2500 does not either. Dennis is getting fuel out of the top of the pump...where the injection lines connect.

Still say as others it's probably something simple...but it's dang hard to reach through the internet.

Oops! Forgot the vintage!

jb

 

[RobJ]

Oops! Forgot the vintage!

jb

Hey mines not that old either!!

I guess it depends on the trim level and age. Mine is just a gear model. No frills.