Distributor option

[85_Ranger4x4]

Factory choke doesn't want 12v, it gets like 7v or something weird.

I cursed my 2.8's coldbloodedness for years after I had swapped it out until I snagged an EVTM and realized a lot of its problems was the PO was giving the choke 12v and it was likely pulling off too fast.

I have read that there can be a second white wire coming off the alternator you can use for the choke but by then I had an Edelbrock carb whose choke wanted 12v so for me it kinda worked out on its own.

So you may want to verify which your carb needs.

 

[franklin2]

Ford had two kinds of chokes. The fully electric choke which was 12v, and the electric choke assist which was about 7v and came from the alternator. Someone said you can tell a Ford 12v choke by the connector, I think it is a stud on the black choke housing. The choke assist units had the slip on spade connector.

What do the China units come with I am not sure. The china units do come with the pipe connections for the hot air, which is how the electric choke assist works. With the choke assist unit, the electric does not even work till the choke area gets very hot. There is a bi-metal switch inside the choke. The electric choke assist unit comes on when it's hot under the hood, and the electric assists or "helps" the choke pull off faster for better emissions. With the choke assist setup, the hot air tube is the main factor in making the choke work.

The full 12v choke units are that, full 12v with no hot air plumbing. My BII with the 2.8 originally had a full 12v choke, it was fed by a relay that was controlled by the computer. I suppose the computer looked at the engine temp, and decided whether to activate the relay or not. And it also controlled the idle, normal and fast with the DC idle control motor.

One thing I had to modify when I took out the computer, but kept the computer carb for awhile. The fast idle cam on the computer carb only had one step on it, the very fastest idle. When it came off of that step it would stall since it would drop to a regular idle. I took a file and cut another step in the cam to help it out without the computer being there.