Corvette C3 Forum 1968 through 1982

Fuel Tank Drop

Thread Tools
 
Search this Thread
 
  #1  
Old 10-15-2007, 02:28 PM
stlvet's Avatar
Junior Member
Thread Starter
Join Date: Sep 2006
Location:
Posts: 17
Default Fuel Tank Drop

Finished my suspension rebuild. Bled the brakes and starter her up. Been sitting a while and have developed a slight fuelleak at the right rear where the steel fuel lines connect to therubber lines. Anyone ever replaced the rubber lines without dropping the tank? How much trouble can I get into dropping the tank to access these lines. All input/advice would be welcomed.
 
  #2  
Old 10-18-2007, 08:30 PM
C3 Starship's Avatar
Super Moderator
Join Date: Jul 2006
Location: Reno, Nv.
Posts: 5,244
Default RE: Fuel Tank Drop

This is right out of my manual.

1. remove batery ground cable
2. drain fuel tank
3. raise vehicle
4. remove spare tire from carrier
5. remove tire carrier bolted attachments and remove carrier
6. lossen "u" clamps and separate exhaust systems at transmission support
7. remove rear muffler brakets at frame and slide exhaust system rearward
8. remove fuel tank support bolts
9. lower fuel tank, rotating toward front of vehicle, and disconnect fuel lines and electrical connections.

Hope this helps.
 
  #3  
Old 10-21-2007, 06:46 AM
Texas Jim's Avatar
Senior Member
Join Date: Dec 2005
Location: Killeen, Texas
Posts: 527
Default RE: Fuel Tank Drop

Way to "run it down," C3. "thumbs up!!"
 
  #4  
Old 10-21-2007, 10:22 AM
C3 Starship's Avatar
Super Moderator
Join Date: Jul 2006
Location: Reno, Nv.
Posts: 5,244
Default RE: Fuel Tank Drop

I try Texas, I try.
 
  #5  
Old 10-22-2007, 02:58 PM
stlvet's Avatar
Junior Member
Thread Starter
Join Date: Sep 2006
Location:
Posts: 17
Default RE: Fuel Tank Drop

Thanks C3. Thatspelled it out for me. The rubber hose connections on top of the frame rails are a bit of a reach to get to though. I got my new hoses from Dr. Rebuild and hope getting them on won't require an additional joint in my forearm. Now, while the tanks out I want to correct my inconsistentfuel gauge problem.The sending unit looks OK but never registers accurately for the last half of a tank of gas. Can this be dry tested by just hooking the 2 wires back up? Probably, just haven't tried yet.Maybe my problem is in the gauge itself. These sending units run over $200, don't want to buy one unless I have to.My gas tank has a rubber bladder. What years where these used on? No trace of a tank sticker. Oh well.
 
  #6  
Old 10-22-2007, 03:32 PM
blueshark's Avatar
Super Moderator
Join Date: Jul 2006
Location: Dickson, TN.
Posts: 2,328
Default RE: Fuel Tank Drop

Have a look here concerning your sending unit. Lots of good info. Cheers

https://www.corvetteforums.com/m_31966/tm.htm
 
  #7  
Old 10-26-2007, 03:41 PM
73shark's Avatar
Super Moderator
Join Date: Apr 2006
Location: KC, MO area
Posts: 3,976
Default RE: Fuel Tank Drop

ORIGINAL: stlvet

My gas tank has a rubber bladder. What years where these used on? No trace of a tank sticker. Oh well.
I'll check when I get home but I believe it was 1975.
 
  #8  
Old 10-26-2007, 06:18 PM
C3 Starship's Avatar
Super Moderator
Join Date: Jul 2006
Location: Reno, Nv.
Posts: 5,244
Default RE: Fuel Tank Drop

Yes, you can "dry test" it.
 
  #9  
Old 10-26-2007, 09:12 PM
73shark's Avatar
Super Moderator
Join Date: Apr 2006
Location: KC, MO area
Posts: 3,976
Default RE: Fuel Tank Drop

ORIGINAL: 73shark

ORIGINAL: stlvet

My gas tank has a rubber bladder. What years where these used on? No trace of a tank sticker. Oh well.
I'll check when I get home but I believe it was 1975.
Found nothing in the brochures re: bladder. However my parts book lists a tank bladder assy starting in 1975.
 
  #10  
Old 11-01-2007, 08:34 PM
allill's Avatar
Member
Join Date: Apr 2007
Location:
Posts: 41
Default RE: Fuel Tank Drop

Dave,

I will have to follow these instructions as well, I want to get a photo of my build sheet.



-jeff
 


Quick Reply: Fuel Tank Drop



All times are GMT -5. The time now is 10:44 PM.