converting from auto to manual choke - Vintage Mustang Forums

 
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post #1 of 13 (permalink) Old 12-06-2006, 11:17 PM Thread Starter
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Has anyone converted from an automatic choke to a manual choke? I have a 289 2brl...if so any tips on the best way to do this?? Thanks, Joe[color:gray][/color]


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post #2 of 13 (permalink) Old 12-06-2006, 11:25 PM
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I've done the opposite ... convert from manual to electric (Edelbrock 1405).

You'll need the choke cable to go from the choke butterfly to inside the car, then will probably need to fabricate a linkage from the butterfly to the throttle blades (choke needs to both close the choke butterfly and open slightly the throttle butterfly), unless there is kit already available for whatever carb you're working on. Be sure to cap off any unused vaccum ports.

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post #3 of 13 (permalink) Old 12-06-2006, 11:55 PM
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WHY? I'd just convert it to electric choke from a 75 351W 2bbl Torino, $40 at autozone, 5 minute swap. Heck even if you wanted to go manual, unless one of the universal kits fits, I doubt you could find a manual choke setup.
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post #4 of 13 (permalink) Old 12-07-2006, 12:00 AM
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Ya, I can;t say I understand why you would want to do that. Are you having trouble with your choke right now? Is it mechanical or electric? Having using all three, I can tell you electric is by far the best way to go.
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post #5 of 13 (permalink) Old 12-07-2006, 11:29 AM
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I gotta chime in on this one... I tried using a manual choke on two occasions and both times the cable would bind and become difficult to operate. The best solution in my opinion is an electric choke. Now, perhaps if someone could develop a servo and a toggle switch to open and close the butterfly...
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post #6 of 13 (permalink) Old 12-07-2006, 11:30 AM Thread Starter
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The reason for my need to change is that the original manifold connection for the automatic choke is plugged and I do not have any of the choke tubes. I thought maybe just going manual would be easier. Sounds like an electric choke is an option, however I know little about how they work? Is this a easy swap? If it is I am willing to give this a shot vis messing with the manual or figuring out the automatic fix.


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post #7 of 13 (permalink) Old 12-07-2006, 12:07 PM
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Installing an electric choke is super easy, unbolt the stock one and bolt on the electric element. Then, using a wire with a spade tip on the carb end and an eyelet connector on the other, connect it to the S terminal of the alternator. Volia! You're done! You may need to adjust the choke, but that's easy as well.

Hot air chokes, as were stock on 2100s use hot air off the exhaust manifolds to operate a bimetallic spring bolted to the choke that moves it as the engine warms. Electric does the same electrically, and manual chokes just move the choke plate by the cable.
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post #8 of 13 (permalink) Old 12-07-2006, 12:26 PM
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My carb was already a manual setup, so I can't help you there. But,
I bought a choke cable at Autozone and it sucked. The line would flex to much and made it hard to use.
The best cable is a throttle cable for a push mower. Works great for me. I have it mounted at the under side of the dash.
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post #9 of 13 (permalink) Old 12-07-2006, 12:35 PM Thread Starter
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Kyle, thanks for the discription. One last question, which terminal is the S terminal on the altenator?

This sounds like an easy solution thanks, Joe


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post #10 of 13 (permalink) Old 12-07-2006, 12:40 PM
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It will have a big S stamped into the case of the alt right above the terminal. I think it's the one that has the wire with the white cover attached but I wouldn't swear to it.
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post #11 of 13 (permalink) Old 12-07-2006, 12:44 PM Thread Starter
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Thanks, I'll give this a try if it warms up enough this week end!! Maybe we'll hit 30 degrees.


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post #12 of 13 (permalink) Old 12-07-2006, 06:10 PM
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yeah the S is the stator wire. i THINK it is the white one as well.

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post #13 of 13 (permalink) Old 12-07-2006, 08:47 PM
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Quote:
Originally Posted by dixierunner
yeah the S is the stator wire. i THINK it is the white one as well.
White is the F (Field) wire. Stator wire is either white/black stripe. In 1966, there is no Stator wire on the alternator harness, as that line is not used.

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