What is this in-line fuse?

Gotta love that wiring . . .
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dzyfngrs

What is this in-line fuse?

Post by dzyfngrs »

I have '79 2000 manual transmission. It had a very corroded 16 amp fuse in it with no continuity. What is this in line fuse for? Best I can guess from the owners manual is either the cigarette lighter, fuel pump or supplementary air valve (what?). Anybody recognize it?

Check it out...
Image
Last edited by dzyfngrs on Thu Aug 08, 2013 1:59 pm, edited 1 time in total.
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blurple124
Posts: 393
Joined: Sun Aug 28, 2011 3:46 pm
Your car is a: 1978 Fiat 124 Spider

Re: What is this in-line fuse?

Post by blurple124 »

That is not a fuse, but actually a gauge resistor for your water gauge. The two senders in the head are a temperature sender and a limit switch. The limit switch is the wire coming in the right side of the resistor in the picture you have taken. When the water temp gets to a certain point, the switch completes the circuit, which pins the gauge for water temperature. Maybe just to get your attention if things are going really badly...


One of the black wires on the left comes from the sending unit, while the other goes to the water gauge itself.
Charlie
1978 Fiat 124 Spider 1800 - Antonia
1997 Jeep Wrangler TJ Sport
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blurple124
Posts: 393
Joined: Sun Aug 28, 2011 3:46 pm
Your car is a: 1978 Fiat 124 Spider

Re: What is this in-line fuse?

Post by blurple124 »

Wow, after all of that, I took another look at your picture and saw the gauge resistor I just described in the far right of the frame (the blue piece that looks nearly identical).

I'm sorry for all of the info on the wrong component. I just figured Fiat got tired of using blue!
Charlie
1978 Fiat 124 Spider 1800 - Antonia
1997 Jeep Wrangler TJ Sport
dzyfngrs

Re: What is this in-line fuse?

Post by dzyfngrs »

Alright, then. We still don't know what it is. If it is for a strain gauge, could someone please tell me what should go inside? It looked like a fuse to me. What is it called, specifically? Can I get it at IAP, Vic's?
rlux4
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Posts: 4211
Joined: Thu Jan 10, 2008 8:32 pm
Your car is a: 1982 2000 Spider
Location: Granite Falls, Wa

Re: What is this in-line fuse?

Post by rlux4 »

It is a fuse holder. The two white ends are spade connectors and the red body screws together. It's most likely for the cig. lighter, but there's no way to say for sure from a picture. You could check continuity between the red wire and the center contact of the cig lighter. I had an issue with one of those on my car not making consistent contact with the fuse so I cut it out and put in a standard AGC type fuse holder.
Ron
Ron Luxmore
rlux2n2@gmail.com
'82 2000 Spider: after 26 years between Spiders.
geecee
Posts: 62
Joined: Tue Mar 27, 2012 8:53 am
Your car is a: Bruna - 1980 Fiat Spider 2000 FI
Location: Greensboro, North Carolina

Re: What is this in-line fuse?

Post by geecee »

Inside you should have a fuse, just like the ones in the fuse box holder.
I had the same question a little while ago. See:

http://www.fiatspider.com/f08/viewtopic.php?f=6&t=23654

and it is for the sigarette lighter.
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