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Topic: 77 fuel tank drop

in Forum: C3 Fuel, Emission Control, and Exhaust Systems

77 fuel tank drop

Posted: 11/21/07 9:53am Message 1 of 5
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Oviedo, FL - USA
Joined: 9/8/2006
Posts: 267
Vette(s): 1977 t-top
As I start to drop tank is there enough flex in the lines to let me drop it down where I can get at the top of tank? Looking through filler door I can't see squat. Any tips? Thanks,Mikeee


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77 fuel tank drop

Posted: 11/21/07 9:11pm Message 2 of 5
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
I would have to assume there is enough to lower the tank. You should be able to remove the rubber "cup" that fits around the filler neck, and see the hoses from the top. If not, then just drop the tank a little, and pull the hoses from the frame side.


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77 fuel tank drop

Posted: 11/22/07 6:16am Message 3 of 5
Former Member
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Oviedo, FL - USA
Joined: 9/8/2006
Posts: 267
Vette(s): 1977 t-top
So the rubber neck I see from the gas tank filler door is removable from outside?.....Do I simply pull it up and out thru the deck?  Thanks again.  Also did not know there are connections near frame rail.I want to remove tank,check it,and remove rear bumper while it's out.


77 fuel tank drop

Posted: 11/28/07 12:09pm Message 4 of 5
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Falls Church, VA - USA
Joined: 3/22/2006
Posts: 232
Vette(s): 1975, 4 speed, L48, NOW Silver mist, Oxblood inside 2003 50th Av Torch RED little brother to 75
Mike, after you remove the mounting braces on the tank you will have enough room to reach up and disconnect (or Cut) the rubber hoses. Hope you have the tank pretty empty. Fuel is very heavy (7.5 lbs per gallon I think) a bulky tank with fuel in it is a B*$ch. Removing the bumper while the tank is out is a great idea. Once you get your bumper off there is a opening right on the right corner of the bunper brace where you can see the fuel lines where you disconnected the hoses. While your there suggest you take a air compressor and blow your fuel lines out just be sure you take the hoses lose up front on the fuel pump. You will be suprised how much gunk will fly out. While you have the bumper off and tank removed you will be able to line your holes up easier too (lucky you) for a better fit.  Suggest you go ahead then and mount the fuel tank back, WHY?   Because you can reach through that opening again and attach new rubber hoses and clamps throgh that opening while the tanks is fully mounted. Its hell to hook them up by rasing the tank enough to connect the hoses while supporting the tank. The bumper clearance is goo to remount the bumper. This is kind of long but just sharing little tid bits of info. Good luck and thanks.
 
Guy



77 fuel tank drop

Posted: 11/28/07 8:58pm Message 5 of 5
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Yelm, WA - USA
Joined: 7/12/2007
Posts: 356
Vette(s): 1979 L82 4 speed Scat 383 crank 190 cc Procomp Aluminum Heads 202 160 stainless valves GM Powder metal rods Speedpro H860CP Hypereutectic pistons 280 cam hydralic HEI Pro comp 1.6 roller rockers Mighty Demon 750 Sanderson CC1AP Hedders.
I got some pics of the tank sitting on the frame and with the sending unit off the tank, might be a little helpfull for you. They are pretty heavy unless you can get all the fuel out, it's definately worth some extra effort to get as much as you can out.


in Forum: C3 Fuel, Emission Control, and Exhaust Systems


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