Post your questions or problems you are haviing with your Yanmar tractor here.
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I have a Yanmar YMG2000D It will run for a few minutes lose power and die. I have installed a clear line from the fuel filter to the injection pump. You can see very tiny bubbles coming out of the injection pump and collecting in the high spot in the fuel supply line until it dies. I bleed the air out and it starts right up and runs fine until the line fills with air again. Any ideas?
Sucking air somewhere, maybe around the fuel bowl o-ring.
It looks like he is saying the air is originating from the injection pump side. I have seen that before. Seems like we had to get the injection pump rebuilt but I can't remember exactly what inside had failed.
That is exactly whats happening. I can plainly see air coming from the pump, filling the clear fuel line until it dies. bleed the air out and it starts right up, until it happen again.
I asked my mechanic and he said he just replaced the injection pump when that happened. Something inside the pump had failed causing the bubbles. We had another good used pump there so he just put it on and the engine ran great.
Thanks Aaron. By chance do you happen to have a used pump for a ymg2000?
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Good eye, as usual Aaron. It does look like there are numerous places that could leak air inside the pump.
I should have a good used pump. Give our parts guys a call or click the contact me link below.
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