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Gas Tank Removal

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Old Feb 13, 2006 | 08:49 PM
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Default Gas Tank Removal

I have been smelling gas lately in my garage around my 77. I traced it down to the 3/8th rubber hose coming from the tank to the hard fuel line. I guess I will have to remove the tank to replace that rubber hose. Also I can feel the paper build sheet on the top left side of my tank. Any special tricks to removing the tank? How far will the tank drop to where I can remove the fuel and vent line? I am replacing the exhaust system and I also figure while the pipes are out of the way it will give me better access.
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Old Feb 13, 2006 | 09:33 PM
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Originally Posted by wnmech
I have been smelling gas lately in my garage around my 77. I traced it down to the 3/8th rubber hose coming from the tank to the hard fuel line. I guess I will have to remove the tank to replace that rubber hose. Also I can feel the paper build sheet on the top left side of my tank. Any special tricks to removing the tank? How far will the tank drop to where I can remove the fuel and vent line? I am replacing the exhaust system and I also figure while the pipes are out of the way it will give me better access.
The fuel and vent line hoses are routed to the top of the right hand frame rail towards the rear where they connect to the steel lines that run along the frame rail. Dropping the tank is pretty easy (easier if it's almost empty) but you need top be careful and keep your trouble light far away especially incandecent bulb types when removing fuel lines. If you don't want to remove the tank, you can change the 2 rubber lines by dropping the tank a couple inches and work through the fuel door hole. Otherwise to remove it, you said your exhaust is already off, remove the spare tire carrier, disconnect the lines at the frame, remove the filler door, support the tank with a jack, remove the tank support, and lower the tank, don't forget to disconnect the wire for the sender once you can reach it.
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Old Feb 13, 2006 | 09:40 PM
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Originally Posted by wnmech
I have been smelling gas lately in my garage around my 77. I traced it down to the 3/8th rubber hose coming from the tank to the hard fuel line. I guess I will have to remove the tank to replace that rubber hose. .
I don't quite understand the comment that to replace the 3/8th rubber hose from the tank to the hard fuel line (the factory steel fuel line?) ....you'll need to remove the tank.

The fuel tank to fuel line hoses can be easily replaced without replacing the fuel tank.
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Old Feb 13, 2006 | 10:07 PM
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I have a 70 and when I removed my tank it was fairly simple as I remember. Mine had a hole in it and since all the gas was alredy on the garage floor draining was unnecissary.


I looked up in a manual and it said to siphon the tank out, due to the fact that there is no drain, but you might be able to drain it through the fuel line at the sending unit. For the removal it says to remove battery ground cable and then the gas cap so that you can remove the rubber boot. before you can drop the tank remove the spare carrier and top tray. After these steps you might be able to get to the lines but if not, and the whole tank needs to come out, Remove the bolts from the retaining straps and if you drain through the sending unit prior, plug them before you start to remove the tank so you dont get any reminant gas on you. remove tank support to frame bolts, and remove the support. Lower the tank rotating it forward( dont forget to unplug the sending wire unit). I dont remember any big problems when I did it(about 7 years ago) so let me know.

If you have it all the way out you also can get that sticker off of the tank for safe keeping.
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Old Feb 13, 2006 | 10:53 PM
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Originally Posted by 68/70Vette
I don't quite understand the comment that to replace the 3/8th rubber hose from the tank to the hard fuel line (the factory steel fuel line?) ....you'll need to remove the tank.

The fuel tank to fuel line hoses can be easily replaced without replacing the fuel tank.
On a '77, the lines are all on the top...
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Old Feb 13, 2006 | 11:23 PM
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Originally Posted by Z-man
On a '77, the lines are all on the top...
And the soft lines are hard as hell to get "off". Drop the tank (4 bolts and 2 straps), cut the soft lines off it and remove the fuel gage wires, then remove the shield to get to the lines on the frame. I just did this to my 77 and it wasn't that hard, just a dozen bolts or so, I did have to do it twice because I ran my hose and wires under the straps (make sure you route them over the straps). Also look real close as to how the fuel over flow fits over the filler neck and how the hose is routed, I didn't and had a hard time figuring it out.
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Old Feb 14, 2006 | 12:28 AM
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I dont' think anyone said DISCONNECT THE BATTERY BEFORE YOU START.
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Old Feb 14, 2006 | 08:50 AM
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If you don't pull the tank all the way out, you may also want to remove the side marker lights. While there is enough room to get your hand over to the hard line connection, you can't see anything. The hole for the side marker light is just enough of a "window" to see what you're doing.
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