How to remove old gas in tank. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

JWPOORE · 08-28-2010, 05:18 PM

I have a 70 Blazer and the gas that is in the tank is a couple of years old now. Is there a way to remove this gas and replace it with new without having to drop the tank? Sorry if this is a basic question, but I have searched and could not really get a good idea on how to approach it properly. Thanks for any input and help on this.

AJs72K5 · 08-28-2010, 07:49 PM

The guys at the shop where I store the truck take a cheapo electric gas pump and hook it directly up to a battery. Then stick the inlet hose into the tank and the outlet hose into a barrel.

JWPOORE · 08-28-2010, 08:32 PM

Quote:

Originally Posted by AJs72K5

The guys at the shop where I store the truck take a cheapo electric gas pump and hook it directly up to a battery. Then stick the inlet hose into the tank and the outlet hose into a barrel.

Can you elaborate a little for me who is pretty dense when it comes to this. Is this something similiar to what you are talking about and just use a hose to go into the tank and one to go out to the disposal containe/barrel?

Example:

Amazon.com: Mr. Gasket 12S Micro Electric Fuel...
If not, can you give a suggestion as to what was used. Thanks again and I appreciate your help.

AJs72K5 · 08-28-2010, 08:42 PM

Very similar. In this case, they had a fuel pump from a Lexus lying around. The pump itself has a positive and a negative terminal....they aren't always marked. If you hook them up to the battery backwards, the pump flows in the opposite direction. Then like you said, one hose in the tank and another one in a disposal container of some sort.

08-28-2010, 05:18 PM	#1
JWPOORE Registered User Join Date: Nov 2006 Location: Central Valley, CA Posts: 198	How to remove old gas in tank. I have a 70 Blazer and the gas that is in the tank is a couple of years old now. Is there a way to remove this gas and replace it with new without having to drop the tank? Sorry if this is a basic question, but I have searched and could not really get a good idea on how to approach it properly. Thanks for any input and help on this. Last edited by JWPOORE; 08-28-2010 at 05:19 PM.

08-28-2010, 07:49 PM	#2
AJs72K5 Registered User Join Date: Nov 2007 Location: South Tx Posts: 1,083	Re: How to remove old gas in tank. The guys at the shop where I store the truck take a cheapo electric gas pump and hook it directly up to a battery. Then stick the inlet hose into the tank and the outlet hose into a barrel. __________________ - AJ Gray Matter Build - 1972 K5 with some stuff Last edited by AJs72K5; 08-28-2010 at 07:50 PM.

08-28-2010, 08:42 PM	#4
AJs72K5 Registered User Join Date: Nov 2007 Location: South Tx Posts: 1,083	Re: How to remove old gas in tank. Very similar. In this case, they had a fuel pump from a Lexus lying around. The pump itself has a positive and a negative terminal....they aren't always marked. If you hook them up to the battery backwards, the pump flows in the opposite direction. Then like you said, one hose in the tank and another one in a disposal container of some sort. __________________ - AJ Gray Matter Build - 1972 K5 with some stuff



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