Help on gas tank
Thread Starter
Racer
Joined: Jun 2011
Posts: 294
Likes: 5
From: Valdosta GA
Help on gas tank
Hi i have a 77 gas tank im working on.
1. what is the point of the bladder?
2. Do i need it?
3. How does sending unit work?
4. What is the talk about going from bottom with line?
Thanks to all who answer my questions
1. what is the point of the bladder?
2. Do i need it?
3. How does sending unit work?
4. What is the talk about going from bottom with line?
Thanks to all who answer my questions
Pro
Joined: Oct 2006
Posts: 734
Likes: 0
From: Bryan Texas
The bladder is to contain the fuel in case of rear end collision, it also makes the seal for the sender unit. I'd leave it in there is it's not messing up.
The sender sends a ground value to the fuel gauge to tell it how much fuel is in the tank. The float works a rheostat (variable resistor) that should read between 0 ohms at empty and 90 (I think) when full. I had to take mine apart and bend things to make it give the correct readings.
"What is the talk about going from bottom with line?"
huh?
The sender sends a ground value to the fuel gauge to tell it how much fuel is in the tank. The float works a rheostat (variable resistor) that should read between 0 ohms at empty and 90 (I think) when full. I had to take mine apart and bend things to make it give the correct readings.
"What is the talk about going from bottom with line?"
huh?
Race Director
Joined: Sep 2001
Posts: 10,560
Likes: 439
From: Wellington, FL
St. Jude Donor '11 thru '25
I would definitely keep the bladder. I believe it was a federal mandate that these be installed by the manufacturer to prevent fuel spillage in the event of an accident. Being fiberglass, these cars can burn to the ground in no time.
Drifting
Joined: May 2005
Posts: 1,629
Likes: 4
From: Somers CT
Drifting
Joined: Jul 2007
Posts: 1,889
Likes: 23
From: Kansas
Yes, I think when they are talking about running out the bottom, they have removed the complete spare tire assembly, would even have to cover the rear area if racing, to stop the drag of the taillight section. I have seen electric fuel pumps bolted to the side of the out side frame, beside the gas tank on the rear of the car. Have a great day. GEne
