PLEASE HELP: Can't Start Yanmar YM2000 after Fuel Filter Replacement

[treedawg]

Changed out the fuel filter on my Yanmar YM2000 and I can't get it to start.

I refilled the plastic fuel bowl after I replaced the filter. When I fired it up it ran for several seconds died and would not restart.

Per info I located online I then opened the pair of bleeder screws located above the fuel filter, I also opened the single bleeder screw located above the fuel pump and I also cracked open the fuel lines at the injector. I turned the engine over with starter until I got good fuel flow above the fuel filter then I closed those bleeder screws, did the same at the fuel pump then I had good flow at the injectors. I closed the lines while the motor was turning over to seal out the air. All this was done with the decompression valve open.

I assumed it would start then but no luck.

White smoke coming out of the exhaust when the engine is turning over but it's not even trying to fire.

This is a tractor that usually fires up in less than 3 seconds.

I'm at wits end. What am I missing..??

td

 

[Maxify55]

Go to the furthest cylinder from the fuel source and bleed your fuel lines.

One at a time from the furthest to the closest. Till all of the lines are burping fuel when you crank the engine.

You've just got rid the lines of air.

No big deal. It'll happen every time someone runs it out of fuel, as well.

I had a 2210 for years. Loved that tractor.

 

[treedawg]

I started closest to the fuel source and worked from there. It sounds like I approached it backwards.

I've done the same on my Kubota but never had any issues getting is started after cracking open the fuel lines at the injector.

THANKS FOR THE INFO...!!!!!

td

 

[winston1]

Nice article from Hoye. How to bleed air out of the fuel system

 

[clemsonfor]

if you just open the 2 screws on the filter and then the one at the injection pump you wont have to fill the bowl out of the tractor or follow any of these routines, it will start fine.

But yes lesson learned the hard way.

 

[Gunny]

Yep, you'll get good at it eventually and it's not that big a deal. I don't know how many times I've stayed out in the fields longer than I had intended and ran out of fuel. Just got to be common practice to go get the fuel can and some wrenches, take something to clean your hands.

 

[normde2001]

Nice article from Hoye. How to bleed air out of the fuel system

#2 is confusing to me. 1 screw is before the filter. It should be bled then closed. The other is after the filter, it should be bled then closed, before going on the the pump bleeder. bleed then close.

 

[winston1]

#2 is confusing to me. 1 screw is before the filter. It should be bled then closed. The other is after the filter, it should be bled then closed, before going on the the pump bleeder. bleed then close.

Maybe Aaron will see this and make changes.

 

[careyo63]

Did you check the O-Ring on the Filter Bowl. Could be sucking air from there. Make sure it's in place. I know the first time I removed my FF-Bowl mine fell out and broke it was so dry rotted. Go back and redo and check everything.

 

[clemsonfor]

#2 is confusing to me. 1 screw is before the filter. It should be bled then closed. The other is after the filter, it should be bled then closed, before going on the the pump bleeder. bleed then close.

correct

 

[hajameelne]

Hello.
Sometimes, when air is inside injectors, high-pressure diesel pump only compresses/decompresses that air there. It is not possible to eliminate that air by opening the fuel lines at injector. You need only time. Should be no problem.
And about the fuel lines at injectors. They are thick-walled tubes, donｴt bend them or do it carefully. If hey are at the wrong angle, then there is diesel leakage and you cannot start the engine. Clean the surrounding to see that. Loosening a nut at tube by one or two turns is usually enough to remove the air.

 

[California]

treedawg, any luck?

What Norm said has always worked for me, and I've seen that technique recommended here by a long term dealer who said it always worked for him. The dealer said there is never a need to open the high pressure lines to the injectors on these models, fuel under pressure will force any air out through the injectors.

 

[Wagtail]

Did you check the O-Ring on the Filter Bowl. Could be sucking air from there. Make sure it's in place. I know the first time I removed my FF-Bowl mine fell out and broke it was so dry rotted. Go back and redo and check everything.

That is worth a shot... A bit of fresh diesel rubbed on the O-ring & then re-attach the fuel filter.

Oh, and when you have it off, check that the manufacturer didn't put some sort of clear plastic 'dust cover' inside the filter... something that needs to be removed?

Hey, ya never know. :confused3:

 

[treedawg]

treedawg, any luck?

What Norm said has always worked for me, and I've seen that technique recommended here by a long term dealer who said it always worked for him. The dealer said there is never a need to open the high pressure lines to the injectors on these models, fuel under pressure will force any air out through the injectors.

I have not had an opportunity to mess with it since I made this post.

I've had a manager on vacation at my business all week so I'll be pulling double time for the next 10 days straight.

I will say I was terribly frustrated with the little tractor Saturday night. I've fiddled with diesel equipment for a long time and NEVER had so much trouble cranking one after changing out the fuel filter especially when I remember to refill the fuel bowl before attempting to restart.

td

 

[California]

I've fiddled with diesel equipment for a long time and NEVER had so much trouble cranking one after changing out the fuel especially when I remember to refill the fuel bowl before attempting to restart.

Your experience is unusual. Generally opening the first bleeder screw is all it takes to refill the filter bowl, you don't need to handle a nearly-full bowl. In fact on my little YM186D with the loader pedestal and loader valve hoses hiding the bowl, I think it would be impossible to put the bowl in place with it filled. I had a difficult time changing the filter recently. I probably should have detached the control hoses at the quick-connects just to get my hand in there.

 

[treedawg]

I guess the air must have worked it's way out out of the fuel system if that's even possible.....

Started pretty easy Saturday morning.

td