Linkbelt 2800Q Fuel System Problems

[NCSUfan2015]

Have a Linkbelt 2800 Quantum that will not run properly. it seems to be starving for fuel and it stalls under load when the fuel system loses prime. The machine runs really good and strong for about 1 hour after the fuel system is hand primed using the manual pump. Then it loses prime and needs to be pumped back up to run properly for another hour. Eventually when the machine gets hot after a couple hours even pumping it up does not fix the problem. No visible fuel leaks anywhere but it must be sucking air somewhere? fuel tank has been drained and cleaned, all lines blown out with air, fuel/water separator checked, new fuel filter,.. Running out of things to check/do. Could it be a bad fuel/lift pump? Any ideas?

 

[clintm]

their is a screen in one of the banjo bolt fitting's it's screwed in the end of the bolt it's most likely on suction side of the primer pump don't drop the copper washers on the bolt. if thats not it I have had trouble with the fuel lines collapsing between the tank and the pump you can blow through it but can't suck fuel through it.

 

[NCSUfan2015]

their is a screen in one of the banjo bolt fitting's it's screwed in the end of the bolt it's most likely on suction side of the primer pump don't drop the copper washers on the bolt. if thats not it I have had trouble with the fuel lines collapsing between the tank and the pump you can blow through it but can't suck fuel through it.

thanks for the tips. will keep trying and see what happens

 

[DK88]

How's your fuel cap? Are the breathers plugged?

 

[NCSUfan2015]

How's your fuel cap? Are the breathers plugged?

fuel cap is good. brand new