fuel leaking into oil pan while sitting;WTH????

[bellyflopper]

i have a problem with fuel leaking out of tank and going into the oil pan after (while sitting) for a week.
i was doing a pre flight check oil ,belts,hyd;i took out dipstick and it sounded like someone was taking a leak??
they were the motor was pissin' all over the ground through dipstick hole.
i estimate at least 2.5-3 gal leaked out because before putting it away ,i filled it up for next time.
can anybody give me some direction of how or why this happened and best idea of how to fix!!! thanks;belly!

P.S.- this is on my kubota b7200 hst

 

[Daren Todd]

Re: fuel leaking into oil pan while sitting;WTF????

Most likely an internal issue with the injection pump. If you have a mechanic fuel pump it could be coming from there also. If you have a mechanical fuel pump, you can bypass the fuel pump with a couple hose clamps and a nipple to rule out whether it's the fuel pump or injection pump.

 

[North Idaho Wolfman]

Re: fuel leaking into oil pan while sitting;WTF????

99% of the time it's the injection pump leaking.

You will have to pull the Injection pump and send the pump to be rebuilt.
It's not a rebuild you can do.
Save all the shims under the pump for when you replace the pump as that is what sets the timing.