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Old Jun 28, 2015 | 08:55 PM
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What is this????

Hi everyone,

I am putting my 1973 390fe back together and I ran across this piece that I remember removing from the right side valve cover. It was held in place by one of the valve cover bolts. It looks like an electric vacuum switch. Is this even an original Ford part?
Thanks Guys!







 
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Old Jun 29, 2015 | 06:42 AM
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Sure looks like it - high idle for PTO?

Can't imagine anything on a '73 FE that would be for.

Did the carb have any vacuum actuated throttle stops?
 
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Old Jun 29, 2015 | 08:22 AM
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Originally Posted by thatguy71
I am putting my 1973 390 FE back together and I ran across this piece that I remember removing from the right side valve cover. It was held in place by one of the valve cover bolts.

This is an original Ford part.
D2AZ-12A170-B .. Distributor Modulator Valve Assy / Obsolete

1972/74 F100 240/300/302/360/390 / 1975/76 F100 300/302/360/390 / 1977 F100 302 // 1972/74 E100 240 I-6 with M/T & 302 / 1975/77 E150 351W

Misc: 1972/77 Ford/Merc Passenger Cars I-6 & V8.

Basic part number 12A170: Here's a pic of the little charmer on a 1972 F100 360/390.
 
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