Good evening all. My G6200 was low on power so I decided to investigate. I removed the head and everything seems to be fine. I should have started with fuel but hindsight is 20/20. I switched the fuel lines around so the injectors are facing outwards. I now can not get fuel to the injectors. The only injector getting fuel is the rearward most injector and it's not even getting much. I have bled the line at the pump and it is definitely getting fuel. My question is, what drives the injection pump? I'm cranking the engine without the head but I can't imagine that would effect the injection pump? What am I missing here? The tractor ran before so I'm sure all injectors were getting fuel.
G6200 D640 injection pump/injector help
- Thread starter Achap52
- Start date
North Idaho Wolfman
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L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Did you tighten the lines at the injection pump, then leaving them loose fitted on the injectors, then turn motor to bleed all the air out of the injector lines then tighten them down?
If you didn't you have an air pocket in the lines and the injectors will not pop with it like that.
And if no one has told you use a piece of cardboard under the injector to test for a good pattern, never put your hand anywhere close to the injector output or it can seriously injure or kill you, and no that's not a joke.
If you didn't you have an air pocket in the lines and the injectors will not pop with it like that.
And if no one has told you use a piece of cardboard under the injector to test for a good pattern, never put your hand anywhere close to the injector output or it can seriously injure or kill you, and no that's not a joke.
I went as far as to take the lines off the pump and the pump isn't even pushing fuel out. Regarding the cardboard, yes. Thank you for the heads up though! I'm being told the pump may be ran off oil pressure. Does anybody know if that is true? I assumed it was ran of the crank but if it is oil pressure driven, that would explain why mine wouldn't be working!Did you tighten the lines at the injection pump, then leaving them loose fitted on the injectors, then turn motor to bleed all the air out of the injector lines then tighten them down?
If you didn't you have an air pocket in the lines and the injectors will not pop with it like that.
And if no one has told you use a piece of cardboard under the injector to test for a good pattern, never put your hand anywhere close to the injector output or it can seriously injure or kill you, and no that's not a joke.
North Idaho Wolfman
Moderator
Staff member
Lifetime Member
Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
It's a cam driven pump not oil pressure.
It's very, very, rare that an injection pump or the drive for the pump goes out, it's a gear driven system that will last for several thousands of hours of engine run time.
Have you made sure the throttle lever is not stuck in shut down (cuts the fuel rack to off).
You're next step is to bottle feed the injection pump from above it, set the throttle to high and see if you can get fuel output.
Cut power to the electric fuel pump if it outputs fuel on the original fuel feed line when you turn the key on.
Achap52, you kind of got the proverbial cart before the horse! Investigating "low on power" by removing the head? Start with the simple things like making sure you have fuel flow beginning at the tank and proceed to IP, then to injectors. Low on power could be as simple as a dirty/plugged air filter!
Follow instruction by North Idaho Wolfman, and get specific information before removing parts, and your tractor repairs will involve less grief! Good luck with it.
Follow instruction by North Idaho Wolfman, and get specific information before removing parts, and your tractor repairs will involve less grief! Good luck with it.