I just electrically powered up my car for the first time since about 1980....
Things going fairly well. Tracking down of various electrical issues which was expected.
Like;
(Don't forget to use the correct bulb in the headlight warning lamp) It won't blink if you don't have the correct blinker style bulb installed..
Some history first. I failed to drain the tank years ago. Ended up with a mess and regretted it. (I was going to get to it soon so it would be fine. These thoughts went on for decades. When the system was finally looked at the old fuel had destroyed my fuel tank level sensor and the original, 1962 dated, fuel pump that was still on the car!
When time came to redo the fuel system I replaced the tank, rebuilt the pump and purchased a fuel sensor from EBay.
The mistake I made is I didn't check it electrically when it arrived some 6 months ago. BTW, I knew it was made in China.
The locking ring that came with the sensor allowed the sensor to rotate easily by hand after it was installed in the tank. I was sure it would leak if left like that. Remember the sensor is installed from the bottom of the tank not the top. I ended up using the locking ring that came with the replacement tank (Made in USA) to get it to lock in place. I installed the tank and called it good.
In the interim I found a NOS fuel sensor and purchased it "Just in Case."
After powering up my car the fuel gauge didn't work, it was stuck on full and the tank didn't have any fuel in it.
I checked my wiring at the tank.
The ground was good.
The wires were connected to the correct sensor posts.
The sensor has one large diameter and one smaller diameter electrical post.
Dug up some sensor specifications.
.6 ohms empty and about 100 ohms full.
I checked the NOS gauge and it was fine.
.3 ohms empty and about 93 ohms full.
Short video attached;
I unplugged the China senor, that was installed in the car, from the car's wiring.

I found the circuit was open, between the terminals not at the .6 ohms the specifications called for.
The EBay purchased fuel tank level sensor was "Junk"..... from the get go.
The good news is I hadn't added fuel or attached the fuel line, using the one time only usage, fuel hose clamp.
So installing the NOS gauge sensor will be relative easy.
A couple lessons here;
Don't purchase China if you don't have to.
Check the sensor operation before adding fuel. Preferably before even installing the sensor.
I'm one for two....
Rick
Things going fairly well. Tracking down of various electrical issues which was expected.
Like;
(Don't forget to use the correct bulb in the headlight warning lamp) It won't blink if you don't have the correct blinker style bulb installed..
Some history first. I failed to drain the tank years ago. Ended up with a mess and regretted it. (I was going to get to it soon so it would be fine. These thoughts went on for decades. When the system was finally looked at the old fuel had destroyed my fuel tank level sensor and the original, 1962 dated, fuel pump that was still on the car!
When time came to redo the fuel system I replaced the tank, rebuilt the pump and purchased a fuel sensor from EBay.
The mistake I made is I didn't check it electrically when it arrived some 6 months ago. BTW, I knew it was made in China.
The locking ring that came with the sensor allowed the sensor to rotate easily by hand after it was installed in the tank. I was sure it would leak if left like that. Remember the sensor is installed from the bottom of the tank not the top. I ended up using the locking ring that came with the replacement tank (Made in USA) to get it to lock in place. I installed the tank and called it good.
In the interim I found a NOS fuel sensor and purchased it "Just in Case."
After powering up my car the fuel gauge didn't work, it was stuck on full and the tank didn't have any fuel in it.
I checked my wiring at the tank.
The ground was good.
The wires were connected to the correct sensor posts.
The sensor has one large diameter and one smaller diameter electrical post.
Dug up some sensor specifications.
.6 ohms empty and about 100 ohms full.
I checked the NOS gauge and it was fine.
.3 ohms empty and about 93 ohms full.
Short video attached;
I unplugged the China senor, that was installed in the car, from the car's wiring.
I found the circuit was open, between the terminals not at the .6 ohms the specifications called for.
The EBay purchased fuel tank level sensor was "Junk"..... from the get go.
The good news is I hadn't added fuel or attached the fuel line, using the one time only usage, fuel hose clamp.
So installing the NOS gauge sensor will be relative easy.
A couple lessons here;
Don't purchase China if you don't have to.
Check the sensor operation before adding fuel. Preferably before even installing the sensor.
I'm one for two....
Rick
Comment