The Ford Barn

Merc Cruzer · 09-22-2022, 04:24 PM

My "cigar lighter" did not work, so I decided to take the time to look into it. I did a continuity test and it was an open circuit, when the lighter was pushed in. I took off the "cigar lighter fuse" and found that to be the issue. Since I had another one that tested good, I decided to take the old one apart, to see how it was constructed.

I did't fine an actual fuse, or for that mater, anything that would act like a fuse. Was this one just defective during construction, or was there an actual fuse inside at one time?

Bob C · 09-22-2022, 05:57 PM

Don't know where the fuse is located but the part number is FAA 14429-A Fuse
assembly (cigar lighter) Did a search and found this picture.

rotorwrench · 09-23-2022, 09:55 AM

It looks like all that is left is a spring. Fuses can literally vaporize when they blow. The spring was likely there to insure contact of the fusible material between one side and the other. The spring is too large on the one end to even make contact. This is only my own opinion so I could be wrong, It wouldn't be the first time and likely wouldn't be the last either.

Merc Cruzer · 09-23-2022, 01:15 PM

The interesting thing is , there is no fuse rating on the housing, or it appears, even on a new one, in the original package. The fuse would be real tiny, to fit inside the housing, so I doubt that will be an option, to refurbish it. So much for reverse engineering.

rich b · 09-23-2022, 04:21 PM

The whole assy is the fuse; when it blows you replace it with another one. Like in the old days with screw in house fuses or cartridge fuses on electrical gear.

Merc Cruzer · 09-23-2022, 06:00 PM

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Quote:

Originally Posted by rich b

The whole assy is the fuse; when it blows you replace it with another one. Like in the old days with screw in house fuses or cartridge fuses on electrical gear.

Agreed, and that is what I did, but I was trying to see how the "fuse" was constructed. As rotorwrench said in his post, it may have just vaporized.

09-22-2022, 05:57 PM	#2
Bob C Senior Member Join Date: May 2010 Location: So Cal Posts: 8,755	Re: Cigar lighter fuse 1953 Mercury Don't know where the fuse is located but the part number is FAA 14429-A Fuse assembly (cigar lighter) Did a search and found this picture. Last edited by Bob C; 09-22-2022 at 06:05 PM.

09-23-2022, 09:55 AM	#3
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,440	Re: Cigar lighter fuse 1953 Mercury It looks like all that is left is a spring. Fuses can literally vaporize when they blow. The spring was likely there to insure contact of the fusible material between one side and the other. The spring is too large on the one end to even make contact. This is only my own opinion so I could be wrong, It wouldn't be the first time and likely wouldn't be the last either.

09-23-2022, 01:15 PM	#4
Merc Cruzer Senior Member Join Date: Jul 2010 Location: Conifer, Colorado Posts: 2,431	Re: Cigar lighter fuse 1953 Mercury The interesting thing is , there is no fuse rating on the housing, or it appears, even on a new one, in the original package. The fuse would be real tiny, to fit inside the housing, so I doubt that will be an option, to refurbish it. So much for reverse engineering.

09-23-2022, 04:21 PM	#5
rich b Senior Member Join Date: May 2010 Location: Minnesota Posts: 1,827	Re: Cigar lighter fuse 1953 Mercury The whole assy is the fuse; when it blows you replace it with another one. Like in the old days with screw in house fuses or cartridge fuses on electrical gear.