draining a fuel tank

[Albee]

Does anyone know if how to syphon gas from the 89 comanche fuel tank?  My fuel pump does not work so I'm thinking that I need to drain some gas before removing/installing a new pump.

 

Thanks for all the help!

[gogmorgo]

Pop the fuel line off the filter, stick it in a gas can, and jump across at the fuel pump relay socket. Assuming your fuel pump works.

 

Or shove a tube down the filler neck and swallow a bunch of gas. The question is why you're trying to siphon out the fuel? 

[ParadiseMJ]

I could siphon the tank out the old way, gas in mouth, but it only takes a little to kill you, seriously.  Aspirating   fuel can be deadly  Using the pump to empty it is best, but if the pump is non-op it's better and safer to get a cheap hand operated siphon pump.  If you're removing it, you only need to get it down to about 1/4 tank before you drop it, 

[cruiser54]

If the pump doesn't work, hook up a hose to the return line and siphon/pump it out from there. 

[HOrnbrod]

Get one of these, a Jabsco 17215-0000 electric drill pump or similar. I've had one for years and it's great for emptying gas tanks, changing the ATF, pumping out water from plumbing failures, etc. About $40 and worth every penny.

 

[gogmorgo]

It's worth mentioning that if you're only pulling the sending unit, it'll come out the side without spilling as long as you're below a half-tank.

[G O B]

Find a plug to go in a hose, that will seal one end airtight. Fill the hose with gas and plug the end. Put the unplugged end in the tank. Put the plugged end in a container LOWER than the tank, when you pull the plug the hose will siphon.

[Albee]

I can't seem to get the hose all the way in the tank.  Is there a trick to it?  :doh:

[cruiser54]

I can't seem to get the hose all the way in the tank.  Is there a trick to it?  :doh:

Yep. Put the hose on the return line from the fuel pump module/unit.  Smaller of the 2 lines.

[gogmorgo]

The filler neck has a couple pretty good kinks in it, plus it goes into the side of the tank, so it might be awkward getting a not hugely flexible hose down there and then it might not even curve down to the bottom. I've never actually tried it. Pulling the fuel lines off and draining it that way, either by pump or gravity (return line) is going to be a better way to do it for sure.

[Tj1]

I rarely use my harbor freight pump but it comes in handy for how cheap it is.

http://www.harborfreight.com/all-purpose-drill-water-pump-34302.html

[Albee]

Thanks for all the help everyone.  I'll let you know how it turns out.

[Albee]

Hi guys,  This is how I got gas out of the tank--the difference being that I used a quick burst of 50 psi from my air compressor for the pressure.  Worked perfectly!  I put a new fuel pump in the tank but she still won't start.  I've also replace the fuel filter, cap, rotor, plugs and wires.  Anyone have any ideas?  Any suggestions are helpful!  Thanks!

 

[HOrnbrod]

Does anyone know if how to syphon gas from the 89 comanche fuel tank?  My fuel pump does not work so I'm thinking that I need to drain some gas before removing/installing a new pump.

 

Thanks for all the help!

 

You started out this thread stating your fuel pump wasn't working. What was wrong with it? Wouldn't run? No fuel pressure?

[Albee]

Turns out the fuel pump was not the problem.  I have a cranking but no starting problem. My next step is to try check the fuel pressure and various sensors.  Thoughts?