Need help getting tractor to run after new injection pump install.

[zukgod]

My tractor just wouldn't start a few months ago, so I installed a new injection pump. I just can't seem to get it to run, which I assume is a timing issue. My tractor is a jimna 224 4x4, and I really need to get it up and running. If someone could walk me through the install process I would greatly appreciate it. My work on the farm is starting to really pile up.

 

[thepumpguysc]

What did the place u got the pump from say??
Isnt the drive keyed.??

 

[ruffdog]

Do we know for sure that the pump was the original problem?

 

[zukgod]

The drive is keyed, and Ruffdog I'm not sure the pump was the original problem at all at this point I'm lost. I have built hundreds of gasoline engines, and can't for the life of me get this one going. I've turned it over and watched all of the valves move so I don't think it's a stuck valve. I've tried putting some regular gas on a rag and putting it over the intake, and it will fire and sometimes run for 30 seconds and then die. I got it running once, and actually drove it for 20 feet but it had no power and then died. I had bad fuel in it that gelled up on me, so I drained the fuel system including lines and replaced the fuel with new. Is it possible that my injectors are plugged? When I crack open the 13mm lines on top of the injectors and crank it over fuel only dribbles out, and I'm not sure if it's supposed to have higher pressure there or not.

When this started I turned the tractor off one night, and went out to start it the next day and it simply wouldn't start. I really do appreciate any help you all might have here.

 

[AllDodge]

Diesel injection pumps must be timed. Normally the pump has a place where a pin (of some sort) is inserted when the pump has been rotated to number one cylinder. The motor is rotated and another pin is inserted in the flywheel area. Once both are in position, then the pump is installed and pins are removed.

With only getting dribbles of fuel out the lines, I would start with the lift pump which pumps fuel to the injection pump. Look at banjo bolts to see if any of them have small screen filters inside

 

[ruffdog]

This might help....more reading:

https://www.tractorbynet.com/forums/chinese-tractors/201419-jinma-will-not-start-how.html

 

[zukgod]

This might help....more reading:

https://www.tractorbynet.com/forums/chinese-tractors/201419-jinma-will-not-start-how.html

AllDodge, I replaced all line screens, and filter. I can't speak to pins in the flywheel area, but did time the injection pump per instructions I found on this site. When I turn the pump by hand I will get fuel to come to the top of the #1 injector line, and then I put the timing wheel on in the correct position, but it still won't stay running.

Ruffdog, I read that thread and thank you, but I have already tried everything listed but will go through it all again right now and give it a try. How much fuel pressure should be at the top of the injectors? When I open one of the 13mm bolts on the top of the injectors I only get a dribble of fuel when cranking it over. I assumed that I should be getting a strong spurt of fuel on each rotation of the pump when turning it over with the starter. Off topic question are you on arfcom by any chance? You have the same screen name as a person on there.

Thanks guys, this thing has me going crazy as it's been down for 6 months now.

 

[Harry in Ky]

While I don't care to offer advice on a tractor make/model I'm unfamiliar with, one thing about this thread puzzles me.
You have twice mentioned loosening 13mm "something" on top of the injectors. 13mm sounds pretty small for injector line nuts, so is it possible you're referring to return line banjo bolts? If so, that won't help you much in the bleeding process. Trying to bleed injector lines by cracking return lines could definitely lead to some frustration. I know it's just terminology, but in order to understand where you've been, where you're going, and what you're doing, people all need to be on the same page.

 

[newbury]

This is one of the times when environment info may be helpful

<snip>I had bad fuel in it that gelled up on me, so I drained the fuel system including lines and replaced the fuel with new. Is it possible that my injectors are plugged?<snip>

Did it gel up due to cold? Is it still that cold or colder? Have you tried Diesel 911? (Diesel 9•1•1 - Power Service)
And what are you using for fuel? Does it contain biodiesel and if so what %?

 

[zukgod]

@Harry, you are 100% correct and if that's my problem I am going to be very embarrassed. That said sense I had it running would that not have bled the air out of the system when it ran? I am going to try to bleed it again first thing in the morning.

@Newbury, I am in Western Washington and it doesn't get terribly cold here. The fuel issue was a local station that got a bad batch of fuel, and had an announcement on their reader board about it, sure enough my fuel was pretty nasty. Edit, I did try the diesel 911 power service but will get another tomorrow.

I am excited to go out and try to bleed the system tomorrow and will update with what happens. In the meantime if anyone else has some idea's on things to try I'm open to listen.

I love this site, only wish I had more knowledge to pass along.