1956 ford F-100. 223.
There is a small extra short tube fuse at the back of my headlight switch and I noticed it was blown, not sure why. But I was wondering if anyone knew what volt or amperage that fuse was supposed to be(shop manual surprisingly doesn't say...)? there is a little smudging and corrosion and I am having trouble reading it, and want to make sure I get the correct one. I think it says "30A"

Thank you very much.

 

I'm not sure of the amp I would have to check mine however, that fuse is only for the interior light not the headlights.

 

10 amps will do it, but you are likely limited by what is made in that physical size. It may be an "8".

 

MidFifties sales this fuse and has it listed in their book as "Special", which must mean that you can't buy it over the counter at your local parts store.

Lance

 

Hmmm, interesting. I found a bod of assorted short fuses at AutoZ, but I don't thing any of them are 10A.

The fuse I'm using is good, and I'm getting power at the dome light wire, but when I gook it up(with a brand new bulb) there's no light....I'm testing right at the element that touches the back of the bulb and KNOW that I'm getting juice.

Interesting. The other weird thing? All of my gauge lights still worked at the time it was blown.....

Thank you very much everyone.

 

[quote=mOROTBREATH;10040568]The fuse I'm using is good, and I'm getting power at the dome light wire, but when I gook it up(with a brand new bulb) there's no light....I'm testing right at the element that touches the back of the bulb and KNOW that I'm getting juice.

quote]

Getting juice is only half of the equation. You need a good ground as well. Check the ground for the lamp socket. A lot of times the factory puts the switch in the ground side of a circuit.

Bobby

 

Yep, Bobby's right, the door switches ground the dome light circuit. They frequently get corroded.