draining out gas from gas tank

4-Cyl. Technical/Performance Discussions
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Mr Garage Sale
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draining out gas from gas tank

Post by Mr Garage Sale »

There a full tank of gas in this parts car that I have. I was wonder is there a way I can drain out the gas through a line in the engine bay? (EX through the fuel filter or something) Any information and pictures would be appreciated thanks everyone.
Parting out 1994 Mazda MX 3 (updated pics in link below http://www.mx-3.com/phpbb2/viewtopic.php?t=55303
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Bumpysbro
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Post by Bumpysbro »

is there any power? if you can get the pump to turn on, crank her over and take off the line and shoot it into a bucket haha.
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ariesdude
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Post by ariesdude »

There is drain plug bottom of the gas tank....
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Mr Garage Sale
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good idea

Post by Mr Garage Sale »

Yup the car starts up and runs fine. I already thought about draining it from the gas tank but it will be messy. So where would I be able to find this LINE your talking about. Is it under the hood?
Parting out 1994 Mazda MX 3 (updated pics in link below http://www.mx-3.com/phpbb2/viewtopic.php?t=55303
My MX3 feedback
http://www.mx-3.com/phpbb2/viewtopic.php?t=55287
Bumpysbro
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Post by Bumpysbro »

the drain plug will be messy but alotttt quicker haha then trying it this way, well there are 2 lines an input from the tank to the engine and the output the left over gas that goes back to the tank. the input line is the one you want, look for the fuel filter and follow that line to the fuel rail, disconnect it so it never gets to the rail and put a 2 liter coke bottle or something and if you turn the key to on and it should try to prime the system. c if it comes out if not crank her over and see if that does it.
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Post by Custommx3 »

If your trying to drain the tak. just jack up your car and put a bucket underneith the tank drain plug and remove it.
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Post by torpedan »

The last time i needed to drain a gas tank I hooked power stragiht to the fuel pump so it would run without having to have the car on. I also ran a hose from the pump to a gas can(or if you have enough length just to another cars gas tank) and let it run till it was empty.
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Mr Garage Sale
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yipee I did it

Post by Mr Garage Sale »

I've found the fuel line leading out of the fuel filter but the only way that fuel comes out is when you crank it. So I hook up my battery charger on boost mode then I cranked it till the battery was dying it drained out most of the tank. Now the low fuel warning light is on I say I drain out close to 30L or more. I am very happy now. Thanks for all the info
Parting out 1994 Mazda MX 3 (updated pics in link below http://www.mx-3.com/phpbb2/viewtopic.php?t=55303
My MX3 feedback
http://www.mx-3.com/phpbb2/viewtopic.php?t=55287
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Ryan
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Re: draining out gas from gas tank

Post by Ryan »

next time someone wants to do this, turn the key to ON and jump F/P and GND in the diagnostic box....instead of cranking it, or jimmy-rigging power to the fuel pump itself. Not necessary at all.
Last edited by Ryan on October 12th, 2009, 12:14 pm, edited 1 time in total.
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nos92mx3
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Re: draining out gas from gas tank

Post by nos92mx3 »

or if you have a factory gas tank, you can utilize the drain.
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Ryan
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Re: draining out gas from gas tank

Post by Ryan »

But I don't have a 40L tank that fits under a car on jackstands.
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Red GS - K8-ATX -> MTX-KLDE - Frakencar. Scrapped
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Re: draining out gas from gas tank

Post by Ninjaskill »

Ryan wrote:But I don't have a 40L tank that fits under a car on jackstands.
use one of these:
http://www.autozone.com/autozone/catalo ... Name=Blitz

just do it in a couple of dumps.
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Re: draining out gas from gas tank

Post by marcdh »

Jiggle syphon would be an easy job I would have thought.
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Ryan
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Re: draining out gas from gas tank

Post by Ryan »

Yes, there are lots of options.
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Black '93 BP RS - wrecked, parted, scrapped.
Green GS - Sold.
Black GS - Summer DD/Race car - Fancy KLZE
Red GS - K8-ATX -> MTX-KLDE - Frakencar. Scrapped
White GS - Rusty. Parts. Scrapped
1997 BMW M3 - my summer baby
2002 BMW 325Xi - sold
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Re: draining out gas from gas tank

Post by marcdh »

Good to know.
AZ-3 1498cc Turbo! EVO 8 turbo and manifold, 5 stud swap, SSR Type C, DIYPNP seq Megasquirt
Mx-3 2.5 V6 Turbo 291 BHP 251 lbft @ 8psi - Retired due to rust and back at uni
View Worklog
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