1 cylinder not runnning Yanmar 1510d

[Jtullis13]

Well I ran out of fuel in my 1510d. I filled the tank back up and bled the lines from the fuel filter and the port on the bottom of the IP (Phillips screw). Cracked all 3 injectors lines and cranked until fuel came out. Tractor lacks power and doesn’t sound like it should. For some reason I don’t think cylinder #3 is working or the injector isn’t working. While it’s running I can crack injector line 1 or 2 separately and the engine will die. I can take injector 3 line off all together and she still runs, fuel is coming out of the line but not very forcefully. And help would be appreciated.

 

[winston1]

Fuel would not come out forcefully with line all the way off. injectors can sometimes be hard to pull and sometimes not. You could swap injectors and see what happens.

 

[Jtullis13]

Thanks Winston, I will see if I can get that done today and see what happens

 

[careyo63]

Fuel problem. Dirty Fuel filter from all the trash that was sucked up from the bottom of the tank is my guess. Could of clogged up a line. #3 furthest from the Inj. pump and the Cyl. that lacks fuel. If you was able to pull the Injectors you should run a compression check. Or talk about until it does quit.

 

[Jtullis13]

Update, I pulled injector #3, took it apart and cleaned it. Put it back in and same problem. Removed valve cover to make sure I didn't have a valve stuck open, nothing there, all looked good. I didn't swap injectors from another cylinder yet, but I am going to see if I can find someone to do a check the injector for me to make sure it is working properly.

 

[careyo63]

Check what caused the problem you ran out of fuel and now you have a dirty filter. Chat it up lugv. birdies...........

 

[ponytug]

@Jtullis13 To me, running out of fuel points to a couple of potential resulting problems;

• Loss of prime
• Dirt/debris moving into the fuel filter and beyond
  • New fuel filter is a good starting point (preferably filled with SeaFoam to start with)
  • The potential for debris to move into the pump and injectors, causing damage
• Actual damage to the pump and injectors from dry running

Since you wrote that your machine has starting / running issues after running out of fuel, I would be inclined to think that all of your issues are caused by running out of fuel. Can you elaborate on what you did to show injector #3 is working? (Pressure test? Spray patter test? Fuel to the injector/hard line?)

What does the inside of your tank look like? Photo? If you can see anything, I would stop and clean the tank before going any farther. If you have rust patches that don't come out, I recommend Por 15's fuel tank liner, with a heads up to carefully follow all of the instructions. When done properly, it is an amazing fix.

If you haven't yet changed the fuel filter, I would do so as a next step, and I would fill it with SeaFoam, ideally running SeaFoam into the fuel pump until the engine is primed and running, e.g. using a fuel line into a one gallon container of SeaFoam.

Good luck, and please keep us posted.

All the best,

Peter

 

[Jtullis13]

@Jtullis13 To me, running out of fuel points to a couple of potential resulting problems;

• Loss of prime
• Dirt/debris moving into the fuel filter and beyond
  • New fuel filter is a good starting point (preferably filled with SeaFoam to start with)
  • The potential for debris to move into the pump and injectors, causing damage
• Actual damage to the pump and injectors from dry running

Since you wrote that your machine has starting / running issues after running out of fuel, I would be inclined to think that all of your issues are caused by running out of fuel. Can you elaborate on what you did to show injector #3 is working? (Pressure test? Spray patter test? Fuel to the injector/hard line?)

What does the inside of your tank look like? Photo? If you can see anything, I would stop and clean the tank before going any farther. If you have rust patches that don't come out, I recommend Por 15's fuel tank liner, with a heads up to carefully follow all of the instructions. When done properly, it is an amazing fix.

If you haven't yet changed the fuel filter, I would do so as a next step, and I would fill it with SeaFoam, ideally running SeaFoam into the fuel pump until the engine is primed and running, e.g. using a fuel line into a one gallon container of SeaFoam.

Good luck, and please keep us posted.

All the best,

Peter

Peter I agree with you and Carey on this being a fuel issue, I was just checking other possibilities yesterday.

I did not change the fuel filter because I don't have one on hand, but I have ordered one. All three injector lines spray fuel when cranking the engine. I am hoping I didn't damage the pump or injector by cranking or running while it was dry, it is possible, but lets hope not.

I did not see any visible damage to the injector when I had it apart. I am going to make some calls today to see where I can take it for a pressure test/spray pattern test.

I will put some seafoam in the fuel today when I head back out there and pull that injector again to take in for testing.

 

[Jtullis13]

Update, took the injector to a shop, the took it apart, inspected, cleaned and tested, all is good. Changed the fuel filter, installed injector, primed fuel bowl, pump and lines, still no combustion for cylinder #3. I am stumped. I don’t think it’s possible to lose compression on a cylinder just by running out of fuel. The tech at the diesel shop thinks that it could be the fuel pump itself. How much pressure comes out of the fuel lines when cranking?

 

[bmaverick]

Update, took the injector to a shop, the took it apart, inspected, cleaned and tested, all is good. Changed the fuel filter, installed injector, primed fuel bowl, pump and lines, still no combustion for cylinder #3. I am stumped. I don’t think it’s possible to lose compression on a cylinder just by running out of fuel. The tech at the diesel shop thinks that it could be the fuel pump itself. How much pressure comes out of the fuel lines when cranking?

You really need @thepumpguysc to be involved now.