Leak , where do I begin looking

[Leonardo82nd]

Ive had the TQG in storage, and noticed today theres a slow leak. (it took a few months to get this saturated) Diesel? And where do I begin the fix . Thanks in advance.

 

[WWRD99]

Ive had the TQG in storage, and noticed today theres a slow leak. (it took a few months to get this saturated) Diesel? And where do I begin the fix . Thanks in advance.

Tough to tell by the pic but the return line to the fuel tank might leak like that...it's a braided line that goes through to the tank held in place by a rubber grommet that can leak as well...a few more pics would help of the actual leak area...unless it's everywhere!

 

[rcamacho]

Fuel tank bung is typical…
Replace, check ultimate well nut thread


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[Light in the Dark]

My first guess is the fuel bung, second being the return line passing through the same area... but I would say if it presented over months it might be the fuel bung starting to go (and once it starts, it only speeds up).

 

[Ray70]

Agreed... that is definitely your fuel drain bung ( well nut )
As stated above either get the "Ultimate Well Nut" as described in this forum or replace it with a REAL Viton or Mil-spec. well nut.
Don't get the cheaper Chloroprene 3/8-16 well nut from Hillman or Pop Fasteners, you will be doing the job again next week!