1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

Draining fuel tank without removing it?

  #1  
Old 06-20-2004, 04:30 PM
58 60 f-100's Avatar
58 60 f-100
58 60 f-100 is offline
Freshman User
Thread Starter
Join Date: Aug 2003
Posts: 46
Likes: 0
Received 0 Likes on 0 Posts
Draining fuel tank without removing it?

Happy Father's Day all. My Father's Day gift was the collector's edition of The Good, The Bad, And The Ugly and getting to work on my truck Since I can't get my new plug wires today, I was going to drain the tank and get a couple of fuel filters hooked up to get the 2-year old gas/sediment out of the old girl. I unhooked the fuel line right where it leaves the cab, and no fuel came out. The previous owner said it still had about 1/4 tank when he parked it. Aside from removing the whole tank, how can I drain the sucker? Thanks.

Kevin


Ain't nothin like the old Fords
 
  #2  
Old 06-20-2004, 05:59 PM
mtflat's Avatar
mtflat
mtflat is offline
Lead Driver

Join Date: Oct 1999
Location: Kalispell, MT
Posts: 6,489
Received 331 Likes on 255 Posts
I'd bet sediment has plugged the outlet. I'd poke around with copper wire - not steel just in case of sparks - or use an air hose and blow the crud back into the tank.

Although, first - Do you have a shutoff valve and is it open? If you do, and it is open I'd unscrew it from the tank so you have a straight shot for the wire.
 
  #3  
Old 06-20-2004, 06:36 PM
wls74's Avatar
wls74
wls74 is offline
New User
Join Date: Jun 2004
Posts: 6
Likes: 0
Received 0 Likes on 0 Posts
Thumbs up

the best way to get your tank clean is to remove it and clean it. even if u used the fuel pump to drain it still would have sediment. the pick-up tube in the tank won't extend to the very bottom of the tank for the very purpose for sediment to settle and not be continuosly pump through fuel system. back blowing compressed air in most cases won't work due to most fuel feed lines have a check to keep fuel pressure constant. first thing go buy 5 gal. of gas and put in it so that you know for sure that there is gas in there to be pumped!!!!!!!!! if this is fuel-injection system test fuel pressure at the fuel filter or hook-up on injector manifold. with injected systems the fuel pump only runs for a 3to4 second prime each time the ignition is truned from key off to key on. change fuel filter no matter what. low pressure or carberated systems depending on location if fuel filter. if you can't get fuel out of the pump check all lines for cracks where sucktion might be lost. then test the pump. the best way to drain the tank without removing it and get the best results possible is the old fashion way!!!(6 foot piece of rubber hose)
 

Last edited by wls74; 06-20-2004 at 06:41 PM. Reason: add more inf
  #4  
Old 06-20-2004, 06:46 PM
imlowr2's Avatar
imlowr2
imlowr2 is offline
Postmaster
Join Date: Apr 2004
Location: Santa Clarita
Posts: 3,005
Likes: 0
Received 2 Likes on 2 Posts
I connected an electric fuel pump to the end of the tank with a hose. Connected the pump to the battery and it drained about 98% of the tank. Then I removed it and drained the rest of the tank manually. Piece of cake. (I'm assuming your Ford has the tank behind the seat in the interior). Most tanks on the rear have a drain plug, making it pretty nice.
 
  #5  
Old 06-21-2004, 07:51 AM
GreatNorthWoods's Avatar
GreatNorthWoods
GreatNorthWoods is offline
Lead Driver
Join Date: Apr 2002
Location: Littleton, New Hampshire
Posts: 8,808
Likes: 0
Received 4 Likes on 3 Posts
Originally Posted by 58 60 f-100
Happy Father's Day all. My Father's Day gift was the collector's edition of The Good, The Bad, And The Ugly and getting to work on my truck Since I can't get my new plug wires today, I was going to drain the tank and get a couple of fuel filters hooked up to get the 2-year old gas/sediment out of the old girl. I unhooked the fuel line right where it leaves the cab, and no fuel came out. The previous owner said it still had about 1/4 tank when he parked it. Aside from removing the whole tank, how can I drain the sucker? Thanks.

Kevin


Ain't nothin like the old Fords
Kevin,

I know you don't want to hear this, but you NEED to pull that tank out of there and have it cleaned and sealed. Draining the tank is just a band aid approach to a problem that will plague you to no end later. Bite the bullet and pull the tank out. There's no way to get 45 years of rust and sediment out of the tank by just draining it anyway. I had mine professionally cleaned and sealed by a radiator shop. You can save a few bucks by doing it yourself, but to me having it done was money well spent...and I'm so tight I sqeek when I walk...

Vern
 
  #6  
Old 06-21-2004, 11:31 AM
51dueller's Avatar
51dueller
51dueller is offline
Lead Driver
Join Date: Aug 2002
Location: Saskatoon SK Canada
Posts: 6,682
Likes: 0
Received 11 Likes on 8 Posts
You better pull the tank or it can go from the Good to the bad and then the ugly.
 
  #7  
Old 06-21-2004, 11:48 PM
Col Flashman's Avatar
Col Flashman
Col Flashman is offline
Postmaster
Join Date: Apr 2000
Location: La Verne, California
Posts: 3,890
Likes: 0
Received 4 Likes on 4 Posts
Thumbs up

Pull it, drain it, boil it out, coat & seal it.

Cheers
Flashy
Red '58 Mercury M-100 w/223 & Merc-O-Matic


Originally Posted by 58 60 f-100
Happy Father's Day all. My Father's Day gift was the collector's edition of The Good, The Bad, And The Ugly and getting to work on my truck Since I can't get my new plug wires today, I was going to drain the tank and get a couple of fuel filters hooked up to get the 2-year old gas/sediment out of the old girl. I unhooked the fuel line right where it leaves the cab, and no fuel came out. The previous owner said it still had about 1/4 tank when he parked it. Aside from removing the whole tank, how can I drain the sucker? Thanks.

Kevin


Ain't nothin like the old Fords
 
  #8  
Old 06-22-2004, 09:54 AM
Spitfire44's Avatar
Spitfire44
Spitfire44 is offline
Freshman User
Join Date: Feb 2002
Location: San Jose
Posts: 43
Likes: 0
Received 1 Like on 1 Post
re:tank draining

The fuel line under that cab that comes from the tank actually runs in through the top of the tank. You can't drain it because it's not a gravity drain. You need to create a siphon to get it to start flowing. The tank does have a drain plug in the middle of the tank that is accesible from under the cab. There's an access hole to get to it.

Let me second the remove the tank and clean it routine. After months of replacing filters and getting stuck because the fuel line plugged. I finally removed the tank and use the POR15 gas tank sealer kit. It comes in three parts. Part 1 is a cleaner to remove the sludge. Could be citrius based. Second part is a phosphoric acid to convert the rust and corrosion. Third is a sealer. Follow the directions and you won't have any trouble going forward.
 
  #9  
Old 06-22-2004, 07:56 PM
petes4x4's Avatar
petes4x4
petes4x4 is offline
Senior User
Join Date: Nov 2003
Posts: 106
Likes: 0
Received 0 Likes on 0 Posts
as i remember the tank comes out rather easy. just pull it out like everyone is telling you. you will save alot of time and agrivation in the long run
 
  #10  
Old 06-23-2004, 04:15 AM
58 60 f-100's Avatar
58 60 f-100
58 60 f-100 is offline
Freshman User
Thread Starter
Join Date: Aug 2003
Posts: 46
Likes: 0
Received 0 Likes on 0 Posts
Thanks to all for the replies. I reckon I'll be pulling the tank out within a few days. I'm military stationed in Alaska and was hoping to be able to wait till I get back to the lower 48 next year to do it and just limp along this summer since everything's so much more expensive up here.

Kevin

Ain't nothin like the old Fords
 
  #11  
Old 06-23-2004, 10:35 AM
imlowr2's Avatar
imlowr2
imlowr2 is offline
Postmaster
Join Date: Apr 2004
Location: Santa Clarita
Posts: 3,005
Likes: 0
Received 2 Likes on 2 Posts
Look on the positive side Kevin. With you being in Alaska, it'll be nice and cool to remove the tank. Beats working in 100 degree temperatures! LOL.... Good luck.. This post motivated me to pull mine out and clean it out/ seal it. Thanks everyone.
 
  #12  
Old 06-23-2004, 11:37 PM
58 60 f-100's Avatar
58 60 f-100
58 60 f-100 is offline
Freshman User
Thread Starter
Join Date: Aug 2003
Posts: 46
Likes: 0
Received 0 Likes on 0 Posts
Hate to say it, but lately, it's been upper 80's here for the last week and a half (hit 90 one day). With us being close to the sun and 20 hours of daylight, it feels pretty dang hot. Thankfully, my driveway's in the shade in the evenings.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
joeinca
6.0L Power Stroke Diesel
13
07-15-2020 03:41 PM
dieselburner
1987 - 1996 F150 & Larger F-Series Trucks
2
06-27-2017 03:20 PM
terrylamar
1994.5 - 1997 7.3L Power Stroke Diesel
49
08-12-2016 11:06 PM
FordBequeather
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
11
10-15-2015 04:42 PM
lameousername
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
3
09-06-2015 04:17 PM


Thread Tools
Search this Thread
Quick Reply: Draining fuel tank without removing it?



All times are GMT -5. The time now is 08:22 AM.