Andy, does your fuel tank depth match how far you moved your float? Floats can't go higher than the top of your tank, of course. In your video it looks like your float is moving quite a range, but checking the online store the tank for my 64 is only good up to 65, and you have a 66 so maybe they got taller in 66. Does your fuel gauge go all the way up when your gas tank is full now? There's more to it than checking the Ohm reading. Unless you know that your fuel sending unit is the right one for you car, you also have to check that the vertical range of float movement matches the depth of your gas tank. Some PO put a new sending unit on my car before I bought it. The sending unit had a fine Ohm reading from bottom to top, BUT it was intended for a much taller gas tank (like modern tanks that aren't part of the trunk floor, maybe a pickup truck?). Because of this, the float reached the top of my new gas tank long before it reached minimum Ohms, resulting in a gas gauge that never read over 1/4 tank even when full. My new fuel sending unit (from Auto Krafters), intended for my car, ranges 4-7/8 inches. TL;DR: Fuel gauges tell you float position, not gallons.
@@AndyKruseChannel Joke, right? Readers might take you seriously if it wasn't for the :) . Have a good one, dude! Incidentally, I about went crazy trying to keep that gasket in the groove while installing the sending unit today. Vaseline didn't work for me. Ended up using PermaTex gasket tack to hold it in place.
After the 2019 restoration on my 1966 2+2 I found I had some trash in the tank. Bought a new tank with a drain and sender. Das gauge has been off since. need to pull it and check Ohm. thx
Im going to change my sending unit this weekend but I’m replacing with the one that has a return line inlet , I am trying to combat heat soaking . Im also going to use a vapor release fuel filter. Has anyone else used that method?
I just got my hands on my first classic mustang, 1966, is driving but the gas fumes are all over the place although a new exhaust was just installed, what can it be ? There is no leaking anywhere, but the smell is very strong inside and outside. Thanks
My first guess is that it's running too rich. I had the same issue with the current Carb on my engine. I have since reduced the Jet size and it's much better. If that's not it, there may be a hole or plug missing in the trunk or backseat area and fumes are getting in that way. :)
@@AndyKruseChannel do you use some sort of Vapor Lock system or dual fuel lines for sending extra fuel back to the tank ? Wondering if i should do that to my 289 engine.
I had no idea of the condition of the sending unit, it was on my list of parts to replace as I continue to go through the car. It was fine, but now I know for certain that everything is good on that end. :)
Ok mine had 4 gallons, I put it back in and the gauge read just above empty and drove to gas station took just about 8 gallons on full, drove it on a good cruise before I put it bed for the winter with stability and filled the tank
Saved for later, I need to replace the OEM sending unit on my Pop's 66 as it started to leak.
Nice! :)
Nice video, i'm going to change sender unit, tank and whole fuel line to new next year. I'm changing original 5/16" to stainless 3/8" fuel line.
Sounds great, good luck!!
7 Excellent video my friend Andy, apparently it is a very simple aspect but in daily life it saves us a lot of problems. Greetings!!!
Thanks!
you are a god send with these videos thank you!!
Glad I could help!
Great video Andy, this is exactly what I needed.
Great to hear!
Thanks for dropping this video, im doing this tomorrow on my 66!
Good luck, you’ve got this!! 🙂
@@AndyKruseChannel yes sir!
A good tip is to coat the gasket with vasoline and lay it in the ridge in the tank. Then put the sending unit in. The Vasoline will hold it in place.
Good tip. 🙂
Outstanding video… Beautiful car😎
Thank you! 👍
Andy, does your fuel tank depth match how far you moved your float? Floats can't go higher than the top of your tank, of course. In your video it looks like your float is moving quite a range, but checking the online store the tank for my 64 is only good up to 65, and you have a 66 so maybe they got taller in 66. Does your fuel gauge go all the way up when your gas tank is full now?
There's more to it than checking the Ohm reading. Unless you know that your fuel sending unit is the right one for you car, you also have to check that the vertical range of float movement matches the depth of your gas tank. Some PO put a new sending unit on my car before I bought it. The sending unit had a fine Ohm reading from bottom to top, BUT it was intended for a much taller gas tank (like modern tanks that aren't part of the trunk floor, maybe a pickup truck?). Because of this, the float reached the top of my new gas tank long before it reached minimum Ohms, resulting in a gas gauge that never read over 1/4 tank even when full. My new fuel sending unit (from Auto Krafters), intended for my car, ranges 4-7/8 inches.
TL;DR: Fuel gauges tell you float position, not gallons.
Don't know if it goes all the way up, I can't see inside the tank. :)
@@AndyKruseChannel Joke, right? Readers might take you seriously if it wasn't for the :) . Have a good one, dude!
Incidentally, I about went crazy trying to keep that gasket in the groove while installing the sending unit today. Vaseline didn't work for me. Ended up using PermaTex gasket tack to hold it in place.
After the 2019 restoration on my 1966 2+2 I found I had some trash in the tank. Bought a new tank with a drain and sender. Das gauge has been off since. need to pull it and check Ohm. thx
Sounds like a good idea. :)
Just did that. Word of advice, take off the driver's side exhaust/muffler. Absolute pain in the ass if you dont
Im going to change my sending unit this weekend but I’m replacing with the one that has a return line inlet , I am trying to combat heat soaking . Im also going to use a vapor release fuel filter. Has anyone else used that method?
I don’t have any experience with those units, but I’m curious how it’ll turn out. You should put together a video on it. 🙂
I have except I put the return line where the drain plug is. Works great and I didn’t need to replace the sending unit!
So i just removed my FSU and a pair of pliars works better than a flat head to remove the key
Good to know. :)
I just got my hands on my first classic mustang, 1966, is driving but the gas fumes are all over the place although a new exhaust was just installed, what can it be ? There is no leaking anywhere, but the smell is very strong inside and outside. Thanks
My first guess is that it's running too rich. I had the same issue with the current Carb on my engine. I have since reduced the Jet size and it's much better.
If that's not it, there may be a hole or plug missing in the trunk or backseat area and fumes are getting in that way. :)
@@AndyKruseChannel do you use some sort of Vapor Lock system or dual fuel lines for sending extra fuel back to the tank ? Wondering if i should do that to my 289 engine.
@@omarkm7 There is no return fuel line on these classic cars. :)
Cool
I think so too. :)
We’re you having issues with the old one or just replace for good measure?
It looked fine, it was probably the wrong ohm reading for the gauge hes using.
I had no idea of the condition of the sending unit, it was on my list of parts to replace as I continue to go through the car. It was fine, but now I know for certain that everything is good on that end. :)
@@AndyKruseChannel Smart 👍
Did mine 3 weeks ago on my 68 coupe, were did your tank read when you put your 4 plus gallons of fuel back in
I don’t recall, I wasn’t paying attention. 🙂
Ok mine had 4 gallons, I put it back in and the gauge read just above empty and drove to gas station took just about 8 gallons on full, drove it on a good cruise before I put it bed for the winter with stability and filled the tank
Did you check the ohm rating on the old unit? Just wondering if it read incorrectly.
It read fine. :)
@@AndyKruseChannel got to love it.
I’ve replaced twice.
Not accurate.
Someone makes a new type that uses a laser to measure the fuel level.
Forgot details.
Yeah, I’ve heard these are made cheaply and there’s a relatively high chance of a faulty unit, that’s why it’s best to test before installing. 🙂