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Forums -> C3 Fuel, Emission Control, and Exhaust Systems
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7/8/10 1:10pm - Original Message: 'Fuel tank replace Help!!!'
Former Member
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Fresno, TX - USA

1980 corvette

Joined: 1/15/2007
Posts: 240
My edelbrock carb is running rich. I was told I have to rebuild carb because it is a chance that something is blocking air and not mixing with fuel right. I had the car setting up for a while then I drove it a little bit and it sat up for a while. Im sure the gas tank is like crap in the inside. How hard would it be to replace the tank? Is it hard to do?

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7/8/10 1:19pm - Reply: 'Fuel tank replace Help!!!'
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Oklahoma City, OK - USA

1972 LS5 Convertible,Auto.Targa Blue with Black Interior.

Joined: 4/1/2007
Posts: 432
It's not hard at all. It's a little time consuming and you need a helper. I replaced mine with a brand new tank and new sending unit about a year or so ago. The old while your at it thing...replace all your hoses and clamps and stuff, their pretty cheap. Make sure you disconnect all your fuel lines at each end and blow them out with air to clean them out. I sprayed something in mine and blew them out but I don't remember what it was. Someone here will probably tell you what to put through there. 

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7/8/10 1:19pm - Reply: 'Fuel tank replace Help!!!'
piamia Lifetime Member
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Plano, TX - USA

76' white w/ t-tops 350 4 speed

Joined: 5/11/2004
Posts: 32

Replacing the tank is not fun. BEfore you go there I would check your fuel pressure at the carb first. I went through many different things before figuring out I had a fuel pressure problem (too much). My pressure reading was over 7 lbs and was pushing fuel through the carb to the point I could see it dripping into the throat. This could also happen if you have dirt trapped within....the top of these carbs are very easy to take off and see if dirt is the issue.

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7/8/10 10:55pm - Reply: 'Fuel tank replace Help!!!'
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Rocklin, CA - USA

1970 T-Top350/350hp numbers matching 4 speed. It's a mess and 1970 Convertible 4 speed.

Joined: 4/2/2005
Posts: 484
Its pretty easy I have replace the ones on my 70 and 81. It might be cheaper to buy a new tank then have it dip and clean and lined. Once its down it would be a good time to clean up the rear in and the tire carrier.
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 Forums -> C3 Fuel, Emission Control, and Exhaust Systems
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