Drain gas tank

[Tim Boyer]

Hi
I need to drain a gas tank on a ‘84 928. Is there an easy way to do this?
Thanks,
Tim

[honerboys]

been a long time since i drained a tank - if i remember i think i just siphoned out as much as possible - then i pulled the hose off the pump and ran the pump into a container - then i plugged the line out of tank and pulled the tank - it still had some fuel in it but it was not too heavy - not sure if this is the easy way - be careful

[Opelotus]

I just did this on a 1984 928S for a friend. I usually drain them right at the tank outlet. There is a short molded hose right off the bottom of the tank that feeds the fuel pump; if this hose is old or original, plan on replacing it. I use plastic hose pinch-off pliers on that short hose, disconnect it from the pump, and then open the pliers to allow fuel to drain into a collection container. You may need to loosen the fuel filler cap to allow it to drain properly. When you need to switch containers, just pinch off the hose.

Will you be removing the tank completely, or servicing anything else while you're in there? I'd recommend inspecting the strainer in the bottom of the tank. In my case I removed the fuel level sender and used a flashlight to look inside.

[Odin911]

Draining the gas tank on your '84 928 can be a bit tricky, but it's doable with the right approach. One easy method is to use a fuel pump siphon kit, which allows you to pump the fuel out without needing to remove the tank.

[ckcarr]

On my '78 I just used a long fuel line hose and put in the tank from the fuel filler. These old cars are easy to siphon fuel out of. Old school way from my gas station days in the '70's suck till it flows, then into a gas can...

That gets most. Then do the rest from the back of the tank under the car. 2 remaining gallons there seems safer than having 20 gallons gush out...

[Betis914]

Easiest way is to pull the fuel pump hose and use it to drain, just jump the relay to run the pump.

[Cobalt]

Connect a line to the fuel line manifold at the tap port and as Betis914 said run a jumper with a switch to the pump relay in the fuse panel and pump it out. I do it all the time when my car sits for more than a few months.