Farmall 140 Electronic Ignition Conversion

Farmall Super A, AV, 100, 130, & 140 1939 - 1973
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Tractors Owned: 1968 Farmall 140
1949 Ford 8N

Farmall 140 Electronic Ignition Conversion

Postby diamondjfarmwv » Wed Apr 07, 2021 6:50 pm

Folks. New to the site. Appreciate anyone's help. Today I installed an electronic ignition, new coil, new voltage reg, and new key switch and starter on my 1968 Farmall 140. Tired of replacing points. Anyways, hooked up a new NAPA battering, turned on the key, and pushed the starter button. The starter turned like a jet engine but nothing hit. Checked the gas to the old Zenith carb, and flowing just fine. Did notice that my fuse and cap were missing below the key switch. Reckon that's the problem, or might I need to adjust the timing? Again, any help will be appreciated.

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Re: Farmall 140 Electronic Ignition Conversion

Postby inairam » Thu Apr 08, 2021 6:30 am

I personally do not like making too many changes at one time.

I would get some starter fluid and spray a little in the carb or air intake ( remove the bowl) and see if it hits a little. IF it does then it is the carb. If it does not it is probably the electronic ignition.
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Re: Farmall 140 Electronic Ignition Conversion

Postby Gary Dotson » Thu Apr 08, 2021 7:28 am

The first thing is to get the meter out and start doing some testing. Make sure you have voltage at the positive side of the coil, if you have voltage there, test for spark from the coil center tower. Did you follow the Pertronix instructions carefully? It's a great little set-up but everything has to be right. You threw a lot of changes at it so check your work carefully.

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Zip Code: 25124
Tractors Owned: 1968 Farmall 140
1949 Ford 8N

Re: Farmall 140 Electronic Ignition Conversion

Postby diamondjfarmwv » Thu Apr 29, 2021 11:38 am

Thanks, Gary. I'm just now seeing this. Forget to follow up with my original post on April 7th. I'll do what you suggested: But if I'm getting fire at all four spark plugs, wouldn't that mean that the coil is okay? One thing that is different is this: the ground wire that connected the points post on the outside of the distributor to the negative post on the old coil wasn't reattached. Nothing to attach to at the distributor housing. The original opening was replaced by the boot and the two wires coming from the electronic ign module. Do you think that the distributor casing needs grounded, and would I still get fire to the plugs?

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Re: Farmall 140 Electronic Ignition Conversion

Postby outdoors4evr » Thu Apr 29, 2021 12:51 pm

If it ran before the ignition changes, then I wouldn't expect a fuel issue. I would check the timing. It is easy to install the pertronix magnet in the wrong orientation or not seat it all the way down on the shaft.
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