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A forum for all the owners and enthusiasts of General Motors B-Bodies from 1965-1996, but dedicated to the owners of 1977-1979 Impalas and Caprices. Join up now!


    Fuel Tanks

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    Myloth
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    Fuel Tanks

    Post  Myloth on Mon Jul 03, 2017 8:48 pm

    I thought I'd share a few tidbits I found out about tanks rather than impress you with my two tone Paint job.

    I bought this tank off of Sweet79 thinking it's a 22gal like my original. Actually it's 24gal from a sedan 82 and up ?

    Before that most 24gal were Wagons at least this what I read. What I found out is there are 3 tanks 1 22gal and 2 24gal

    one for 2/4dr and the other wagon. The sender/pickups also have the 2 and 3 line version but there are versions for

    22gal and 24gal. I guess AC was the factor for the return line rather than just vapor line on some but not all as mine

    had AC and no return line. If anybody has something to add or correct please just thought I'd toss it out so you might

    not make my initial assumption that there wasn't that much variation on these.

    (also I'm not done painting the tank lol)



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    terry cronk
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    Fuel Tank

    Post  terry cronk on Mon Jul 03, 2017 9:31 pm

    Is this a new or just a good condition tank>

    Do you have a part number for the 24 gallon?

    Nice paint.  Smile
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    Myloth
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    Re: Fuel Tanks

    Post  Myloth on Tue Jul 04, 2017 6:32 pm

    This came out of a car Sweet79 had apparently they had just put it in (Denting it on the install no leaks though)

    I pulled out of the car it looked like new except the dent. There are again two 24 gal one for sedans and one for Wagons

    the difference is the Wagon is taller rather than slightly wider. Part number is gm4 or gm411a (spectra Pemium) one without

    neck . There are two different pickup senders two that match this tank one for 2 lines (Spectra FG10b the one I bought)

    and  another with 3 lines(Spectra FG10G). The 22gal sender\pickup and wagon 24gal are completely different from these.

    Fortunately the 2 line is cheap I found mine on ebay for $30 the 3 line is twice the price though. Also the straps for the

    24 gal are st09 vs st010 for the older 22gal. Also every sender/pickup are all standard GM 0-90ohms no worries there.

    Here is the tank without the over spray I am going to add a hard gloss and call it a day.I only two-toned as I wanted to use what I had lol.

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    Kit1078
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    Re: Fuel Tanks

    Post  Kit1078 on Thu Jul 06, 2017 9:42 am

    Looks pretty sharp. I went with the plastic tank from a '94 roadmaster so I could run an in tank pump. The only concern I have with it is whether the filler neck comes up high enough to sit properly behind the license plate.

    That is really sharp looking tho
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    terry cronk
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    Fuel tank

    Post  terry cronk on Thu Jul 06, 2017 6:01 pm

    I have found a 24 gallon on Ebay.

    Its a GM411B for an 85 Impala/Caprice. And other vehicles 85 to 89.

    If this is the 24 gallon, I'll get it. There is a GM part number 10089617.

    Its $132 dollars shipped. And a 2 line sender and straps are on order when I want also.

    The sender is a Spectra FG10B. For $31.76 + 8.95 shipping.

    The straps are for the 24 gallon tank.

    We will see soon.
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    terry cronk
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    Fuel tank

    Post  terry cronk on Fri Jul 07, 2017 9:38 am

    I found the F10A on Ebay for $113.00 shipped w/neck.

    Also the straps and sender that is described here.

    Thanks
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    Myloth
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    Follow up

    Post  Myloth on Thu Aug 10, 2017 2:33 pm

    I finished installing the 24gal tank in my 79' Impala Coupe and it fits like a glove. The sending unit from the early 80s with

    hookup for 2 lines rather than 3 also works perfectly with my aftermarket Fuel Gauge I have driven for few days checking

    for issues and leaks. I used the stainless and rubber 3/8 fuel line and some AN fitting for the pump and carb my only leak

    was where I could not use the AN fitting due to using original style fuel pump. This pump has a nipple for the line and

    needs   180 degree for the tank line in hindsight I should have just used a different pump but this style made by Carter

    has been good to me. I got desperate and used fitting for fuel pressure gauge with 2 3/8 barbs and it works great better

    than bending lines anyway.(The Barbs and blue fitting if wondering are large on the inside,larger than 3/8 hose anyway.)

    .People like to bend hose for this but to me it seems hose collapses eventually. Anyhow just wanted to follow for anyone

    interested in the larger 24 gallon tank.











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    terry cronk
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    Fuel tank

    Post  terry cronk on Wed Aug 16, 2017 7:29 am

    Did you do anything special on the pickup in the tank? Extended or left stock?

    The flimsy screen is just about useless to stay on. Maybe not use it at all?

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    terry cronk
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    Fuel Tank

    Post  terry cronk on Thu Aug 24, 2017 7:49 am

    I'm just trying to catch up with any information on the fuel tank install w/screen.

    It seems like a flakey item on the pickup tube. Any suggestions on before install?

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    bj383ss
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    Re: Fuel Tanks

    Post  bj383ss on Tue Sep 05, 2017 7:39 pm

    That's a great idea on the 180* turn the fuel line has to go from the pump to the tank. What I did on mine was run a big loop that goes up near the radiator so the bend wouldn't be sharp and this is also where I ran my fuel filter.

    Terry dropping the tank or installing is pretty straightforward. I dropped mine a few years ago when I thought the gas had gone bad from sitting so long. It turns out I had a bad cam(with 8 flat lobes due to not having ZDDP in the oil) but I was really surprised to see the inside of my tank was perfect. Not a spec of dirt or rust.

    Bret


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