plastic gas tank - The 1947 - Present Chevrolet & GMC Truck Message Board Network

blazer bill · 01-26-2008, 10:58 PM

I Pulled My Gas Tank Off And It Had Quite A Bit Of Rust In It. Most Of The Places I`ve Been Looking For A Replacement Are Metal Has Anyone Seen A Replacement Thats Plastic.

Burt4x4 · 01-26-2008, 11:32 PM

Yup, there is a Polyethelane (sp?) tank made that is a direct replacement. You do have to extend the filler hose because the neck on the poly tank is much shorted than the metal one.
What I did was cut off the metal filler neck, then cut the rubber filler hose in half and put the metal neck into the rubber hose to make it longer.
I think I got mine from brotherstrucks.com
I don't have the tank anymore as I upgraded to a 37gal tank from North West Metal Products.
I ran the plastic one for about 2yrs and the only problem I had was the sending unit's rubber seal or O-ring would let gas out when I filled the tank to the top, gas would drip out the top until the level droped..a new o-ring probly would have fixed that....
Good Luck
Burt

Frizzle Fry · 01-27-2008, 12:48 AM

I have on in my Burb (same as Blazer) and I had the same leak. I fixed it by bending the tabs on the lock ring down a little bit to provide more sealing pressure. Otherwise no issues.

Long Roof · 01-27-2008, 07:55 AM

I have the plastic tank also and same leak here. Seems ok if I stop filling after the nozzle cut off but if I try to top it off then it leaks.

blazer bill · 01-27-2008, 11:01 AM

With the price of gas now days I don`t think I`ll be filling my tank full.

01-26-2008, 10:58 PM	#1
blazer bill Registered User Join Date: Jan 2008 Location: indian mound tn. Posts: 16	plastic gas tank I Pulled My Gas Tank Off And It Had Quite A Bit Of Rust In It. Most Of The Places I`ve Been Looking For A Replacement Are Metal Has Anyone Seen A Replacement Thats Plastic.

01-26-2008, 11:32 PM	#2
Burt4x4 Registered User Join Date: Feb 2000 Location: Modesto, CA Posts: 1,842	Re: plastic gas tank Yup, there is a Polyethelane (sp?) tank made that is a direct replacement. You do have to extend the filler hose because the neck on the poly tank is much shorted than the metal one. What I did was cut off the metal filler neck, then cut the rubber filler hose in half and put the metal neck into the rubber hose to make it longer. I think I got mine from brotherstrucks.com I don't have the tank anymore as I upgraded to a 37gal tank from North West Metal Products. I ran the plastic one for about 2yrs and the only problem I had was the sending unit's rubber seal or O-ring would let gas out when I filled the tank to the top, gas would drip out the top until the level droped..a new o-ring probly would have fixed that.... Good Luck Burt __________________ 1972 K5 MPFI454/Sm465/Np205/D60/14FFd/Re-Centerd H1s w/Swamper Iroks

01-27-2008, 12:48 AM	#3
Frizzle Fry Registered User Join Date: Aug 2005 Location: Hillsboro Oregon Posts: 6,449	Re: plastic gas tank I have on in my Burb (same as Blazer) and I had the same leak. I fixed it by bending the tabs on the lock ring down a little bit to provide more sealing pressure. Otherwise no issues.

01-27-2008, 07:55 AM	#4
Long Roof Old School, New Style Join Date: Jun 2005 Location: Monroeville, Ohio Posts: 790	Re: plastic gas tank I have the plastic tank also and same leak here. Seems ok if I stop filling after the nozzle cut off but if I try to top it off then it leaks. __________________ The Good: - 72 GMC Jimmy 4x4 - 307 cid / 350 th - 70 Chevy Suburban 1/2T 2wd - 454 cid /400 th - 96 Chevy Impala SS - mainly stock - 98 Chevy Tahoe LT 4x4 - all stock The Bad: - 86 Chevy Suburban 1/2T 4x4 - winter beater The Ugly: - 72 Chevy Suburban 1/2T 2wd - parts truck

01-27-2008, 11:01 AM	#5
blazer bill Registered User Join Date: Jan 2008 Location: indian mound tn. Posts: 16	Re: plastic gas tank With the price of gas now days I don`t think I`ll be filling my tank full.



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