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Fuel Tank Follies

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TimCNY View Drop Down
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Joined: 15 Apr 2014
Location: Upstate NY
Points: 1551
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    Posted: 05 May 2019 at 8:26am
Well, I removed the fuel tank from my WD45 yesterday because there had always been a lot of rust in the sediment bowl when it was running. I drained the gas out of it and - something was rattling around inside. So I took the flashlight and lo and behold, there's a rusty 10d nail rolling around in there! Or at least I thought so... then I thought maybe it was sort of galvanic stick placed in there back in the day because the magnetic wand I used to try to get it out showed the object wasn't ferrous. Either way, the great news is - NO RUSTY TANK! Looks perfectly great in there! So, I tried rolling the tank around upside-down to get the object out, no can do. But I had an idea: If it's non-ferrous, why the rust in the sediment bowl? Long story short, after thinking it over, seems to me that it's most likely a piece of wood that someone used as a fuel gauge and the end broke off inside the tank, shedding slightly over the years.

Here's my question: How long is it safe to have the tank remain empty? I've heard/read that if I don't refill asap and keep it filled, I WILL end up with flash rust, also that any remaining fuel will evaporate and form gum and varnish which will be a big problem down the road, on and on. Answers?

Thanks,
- Tim
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Dakota Dave View Drop Down
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Joined: 12 Sep 2009
Location: ND
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dakota Dave Quote  Post ReplyReply Direct Link To This Post Posted: 05 May 2019 at 8:45am
If all you did was empty the tank you dont have to worry about flash rusting. Flash rusting happens when you remove the existing surface protection.
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steve(ill) View Drop Down
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Joined: 11 Sep 2009
Location: illinois
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Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 05 May 2019 at 8:59am
I have a couple tractors that I use to cut grass in the summer.. They set empty from October to May and no problem restarting then............. In fact, I need to go get one of them going TODAY !
Like them all, but love the "B"s.
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TimCNY View Drop Down
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Joined: 15 Apr 2014
Location: Upstate NY
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TimCNY Quote  Post ReplyReply Direct Link To This Post Posted: 05 May 2019 at 12:37pm
OK, same here, either full or with some gas in them all winter without using. But rarely empty for extended periods.

FWIW, this tractor has sat in the pole barn since October of, I think, 2016, maybe?, I had added a little of the red bottle HEET when parked. I haven't had much time to devote to fixing it back up until the past few months. The tank had about 8 gallons in it. After I drained it into jerry cans, the neighbor across the road came over to ask if I could help him with the used garden tractor he just bought. Turns out, it's an Allis Chalmers 616! So first thing I asked was, "Does it have gas?" The look on his face was priceless; we checked and - no gas. None in his garage, either. "Hey wait, I've got a lot, I just drained it from the tank of my tractor, I can't guarantee that it's any good but you're welcome to it!" "But, Tim, you have only diesel, yes?" Well, took a few minutes to explain about having a gasser as well, since they just moved in last November.
He mowed all afternoon, without any trouble. Man can that thing cut grass! Now his wife is making me 2 loaves of Balashka(sp?). They're Russian. And WOW can they cook... and bake...
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Dave(inMA) View Drop Down
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Joined: 12 Sep 2009
Location: Grafton, MA
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave(inMA) Quote  Post ReplyReply Direct Link To This Post Posted: 05 May 2019 at 12:54pm
Sounds like the best part of having and being neighbors, Tim!
WC, CA, D14, WD45
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Ted J View Drop Down
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Joined: 05 Jul 2010
Location: La Crosse, WI
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ted J Quote  Post ReplyReply Direct Link To This Post Posted: 08 May 2019 at 9:09pm
Sounds like Tim might be gaining a spare tire in the future.......and it won't fit on any of his tractors. LOL
"Allis-Express"
19?? WC / 1941 C / 1952 CA / 1956 WD45 / 1957 WD45 / 1958 D-17
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