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1961 - 1966 F-100 & Larger F-Series Trucks Discuss the Slick Sixties Ford Truck

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Old Apr 10, 2017 | 07:48 AM
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Distributor Assistance

So I picked up my 66 F100 w/ 352 FE engine about two weeks ago. I finally took it for a quick spin last night and had a few issues with the engine performance. The idle is sticking occasionally, and it seems to stumble occasionally under power. While poking around under the hood, we noticed that the dist. cap is loose and missing an o-ring seal.

I'm looking to know if this is the OEM distributor or if not, what I have. As you can see, it's quite rusty in there, i'm sure that's not helping too much either.

Also, in the 3rd pic below, there is a red wire with a elbow connector on it that goes to nothing. Any idea what this is for?

Thanks in advance
 
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Old Apr 10, 2017 | 09:45 AM
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red/white wire (there were 2). either oil pressure sensor or temp sensor. Do you have a wiring diagram?
 
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Old Apr 10, 2017 | 10:02 AM
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Are you sure it is red? I'm looking at your first picture where the wire goes past the coil and right at the lower edge of that picture the wire appears white from here.

Oil pressure sensor if it is predominantly white.

Chad

.
 
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Old Apr 10, 2017 | 10:27 AM
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I'll clean it up a little tonight and get a better color guess on that wire.
 
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Old Apr 10, 2017 | 10:30 AM
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Thanks for the diagram, AZSCAWPION. My shop manuals are in the mail, should be here before taxes are due.
 
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Old Apr 10, 2017 | 10:35 AM
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Oops - already answered.
 
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Old Apr 10, 2017 | 11:38 AM
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Dizzy has an ID number stamped on the curved section of the base...just below the cap, post what it is.

"Red" wire may be this: C0LF-12250-A .. Resistor Wire-Ignition Coil (Motorcraft DY-37) / Obsolete ~ Available NOS & from auto parts stores.

61.49" long / Color coded pink / 1.30-1.40 ohms resistance / #20 gauge wire // 1960/70 all FoMoCo vehicles.
 
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Old Apr 10, 2017 | 12:18 PM
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I can see some of the P/N with a mirror, it's definitely a Ford part.

Has a 12127 in it, see photo. If I can find a smaller mirror maybe I can figure out the rest.
 
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Old Apr 10, 2017 | 12:30 PM
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Originally Posted by CJ06SLT
I can see some of the P/N with a mirror, it's definitely a Ford part.

Has a 12127 in it, see photo. If I can find a smaller mirror maybe I can figure out the rest.
There are 4 digits before 12127 and one or two digits after 12127.

Example 1965/66 F100/350 352: C5TF-12127-A

Points, condenser, rotor, cap same ALL 1958/73 V8's, 1974/75 V8's without DuraSpark electronic ignition.
 
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Old Apr 10, 2017 | 12:59 PM
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Thanks Bill, that's definitely the part number, can make it out with enough wiggling of the mirror.

I can only assume the cap should not be flopping around as much as it is. Also, should I be worried about the rust in there, or is it just the contacts that I need be concerned with? Any recommendation on if I should pick up a whole new unit vs. just the the cap and rotor?
 
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Old Apr 10, 2017 | 02:14 PM
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No resistor wire

Originally Posted by NumberDummy
Dizzy has an ID number stamped on the curved section of the base...just below the cap, post what it is.

"Red" wire may be this: C0LF-12250-A .. Resistor Wire-Ignition Coil (Motorcraft DY-37) / Obsolete ~ Available NOS & from auto parts stores.

61.49" long / Color coded pink / 1.30-1.40 ohms resistance / #20 gauge wire // 1960/70 all FoMoCo vehicles.
ND, I think you are on to something. The wire on his coil looks like ordinary wire. That would account for the very burned looking points and rotor.
CJ06SLT you definitely need a resistor in the circuit.
 
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Old Apr 10, 2017 | 02:25 PM
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If it's the original dizzy, it's probably time to replace it. Check for movement at the rotor. Get a stock rebuilt dizzy and add electronic ignition.
 
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Old Apr 11, 2017 | 05:06 AM
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Thanks folks. Looks like the search is on for a new dizzy.

KO1960, are you referring to electronic ignition like the Pertronix Ignitor
https://www.summitracing.com/search/...-size/5-8l-352
or like the Accel or MSD points eliminator?
https://www.summitracing.com/parts/m...view/make/ford

Sorry for all the questions, I think my only car without EFI was an '85 Accord
 
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Old Apr 11, 2017 | 09:28 AM
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I have a rebuilt dizzy from Napa with the pertronix, and their coil. It works very well. Do a search on this forum, and you'll find plenty of options and opinions.
 
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Old Apr 11, 2017 | 09:43 AM
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KO1960 - Just ordered up all of these. Did the Pertronix with the 40k coil. Napa should have my dizzy tomorrow.

Hopefully I can get everything in and installed on Friday and I'll report back on how she's running.
 
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