McCormick Deering W9 Tractor Fuel Tank

[RustyJ766]

    i have a friend call me yesterday about this . The W9 tractor he has is a gas tractor . The question i have is has anyone out there ever seen 2 holes in the bottom of the fuel tank ? One hole has an elbow coming out of it with a line going to the carburetor , no sediment bowl but someone added an inline filter. The other hole is beside the main outlet their is an elbow coming out of this hole , but it has a hose clamped on it and a plug in the end of it . What is this for /? Has anyone else seen this before ? My guess is something that has been added by someone or could this be from a diesel tractor? . I told him i would find out what i could . He is 94  years old and still works on Case and Farmall tractors., and not computer oriented . i have been around these tractors for 45 years, and i don't remember seeing this . I hope this not a stupid question.  Thank you for your time . jjw. 

[RustyJ766]

  i think i figure out what the 2 hole in the bottom of the fuel tank is for .  i believe the tank is from a diesel tractor , . All diesel tractors have to have a return line from the pump. i forgot all about that . i kind of feel stupid about asking this question. Thank you everyone. jjw. 

[MT Matt]

No dumb questions. Glad you figured it out. Yes that’s why there are two holes in the tank. I did the exact same thing with my W-9. It was a rusty mess when I bought the tractor. So much rust in the tank I could hardly lift it. I have a parts WD-9 and the tank was good. I just put a pipe plug in the extra hole to block it off when I mounted the tank on the W-9.