Kubota B7200 losing fuel prime

[sclord2002]

I have a B7200 Kubota that has just started to lose its fuel prime when it sits. I can bleed the system and it starts and runs great but let it sit overnight and it won't start untill I bleed the system again. Can't find any leaks in fuel lines. Any help/advice appreciated.

 

[Hooked_on_HP]

Check your fuel filter to make shure it is tight. Also if you have a water drain make shure it's tight.
Bill

 

[David-Davies]

If you have hard starting cold, but once started, it is fine the rest of the day. When cold, first thing after sitting over night, start the engine, turn off immediately, and if it will restart immediately, suspect the injector pump.

 

[banjodunn]

G'day i would check the filter and all lines first (don't forget the return lines) if that does no good i would look at the prime pump next ( may have bad valves ) not saying it is not correct but not very common for the inj pump to give you your symptoms. Best of luck


Jon

 

[zman007007]

Usually if all lines are tight and no leaks, the pump either works or it doesnt, there is no in between.

 

[banjodunn]

G'day Zman i wish it was as simple as that over the years i have come across alot of prime/lift pumps the the valves won 't seal 100 % when they are running no probs some you can go back to an hour later and they have lost their prime others it can be a day or twobut they can let their prime go and allow them to draw air into the system through the return line


Jon