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Author Topic: Odd Device on Firewall  (Read 3431 times)

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Offline athawk11

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Odd Device on Firewall
« on: February 02, 2016, 07:34:42 PM »
Hi all,
A friend in Germany is restoring a 3A.   He sent me this photo...



It's mounted to his firewall.  I'm not sure what it is.  Maybe a resistor?  What do you all think?

Tim
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2-1949 CJ3As
1-1946 CJ2A

Offline Cadwelder

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Re: Odd Device on Firewall
« Reply #1 on: February 02, 2016, 08:36:07 PM »
Looks like a rheostat to me, a variable resistor. For what, I don't know.

http://www.galco.com/images/moreinfo/ohmite0318.jpg
« Last Edit: February 02, 2016, 08:41:08 PM by Cadwelder »
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CJ3A, 225/SM420/D18 (twin stick) 25/44 4.27:1 Repro body

Offline Bob W

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Re: Odd Device on Firewall
« Reply #2 on: February 02, 2016, 08:56:34 PM »
Quote
Looks like a rheostat to me, a variable resistor.

X2
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Bob W

Offline 1955CJ-5

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Re: Odd Device on Firewall
« Reply #3 on: February 02, 2016, 09:14:43 PM »
I dunno...but it looks like maybe the center would turn as the coil heats up and then it acts as a switch of some sort....cooling fan????

I'd like to see the other side of it....
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1955 CJ-5, A friend for 58 years....1951 CJ-3A, a new addition. 1929 Model A Ford Closed Cab Pickup...

Offline johnrb3b

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Re: Odd Device on Firewall
« Reply #4 on: February 03, 2016, 01:44:51 PM »
Definitely a rheostat.
It should have a cover over its innards and a knob on the shaft.
It's not wired to anything so it's anybody's guess what it was for.
Not original equipment.
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1946 2A - - - 1949 me - older than most of my Jeeps
1954 3B - - - 1957 Wagon - - - 2010 4-door JK
past Jeeps ---> '54 3B - no tub --- '59 3B - no engine
past addiction - VW ---> '69 bus --- '70 camper

Offline Lee

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Re: Odd Device on Firewall
« Reply #5 on: February 04, 2016, 01:25:44 PM »
Possibly an early electric trailer brake controller, WW2 half tracks had a like resistor for this purpose.

Lee ;)
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American Engineered Rolling History
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