Mag to electronic ignition.

If you decide to go this route you need to pay close attention to where the rotor is pointing on the mag before removing it from the engine. Make a sketch of where the rotor is pointing and when you install the distributor you turn the rotor to the position in your shetch. Don't move the engine after you remove the mag. Hal

Sometime I gotta get one of you IHC guys to educate me on those IHC mags (I need to get one n take it apart n study on it lol). Heres my question, You and I or Jim discussed this a while back and you or him even posted a page from a manual buttttt t I forgot it grrrrr rrrr. On mags with the spring wind n trip impulse assembly, before the spring winds n the impulse trips, it looks to me like the rotor tip position would be BEFORE where it would be when she trips n fires IS THAT RIGHT OR NOT????? ???

If it isssss ss right????? How about if hes setting up a distributor timing from scratch we should advise him to get the No 1 piston at TDC on its Compression Power Stroke and thennnnn nnn install the distributor so the rotor tip is lined up with the internal cap tower that leads to that No 1 cylinder????? ????

Of course, if the mag dont work like I was guessing, I see n understand your post as the easy simplest way to install the distributor so its in basic time.

Henry,

Once you have the distributor n switch as Hal mentioned (I would feed battery voltage to the ignition switches BAT input terminal from the ammeters load side terminal and its IGN output down to the coil, of course) you need a coil. That would be a 6 volt coil if its a 6 volt tractor, while if its a 12 volt tractor you can use EITHER a full true 12 volt coil or a 6 volt coil plus a series ballast resistor.

John T NOT an IHC Mag guy but like to learn

• IHC Magneto Service Manual

John T

John T

You don't need the engine at TDC on the No1 plug on the compression stroke as long as you know where the rotor on the mag was pointing when you remove the mag. You can do the same thing on a car or truck if you need to pull the distributor. You make a note of where the rotor is pointing and pull the distributor. Then don't move the engine. You can reinstall the distributor by repositioning the rotor to same spot as you noted. The engine should start and you should check or reset the timing with a light. I had to do this on my 1981 Cougar to get to the thermostat housing.

Here's the mag procedure from my IH manual. It covers timing the mag. Hal

John T

If you don't like that kind of learning, you would do well to get someone else to design the system, and then install it yourself. Consult with your local automobile electrical shop. Try to find someone who likes to fiddle with older cars.

And, keep the parts associated with the mag, etc., that may no longer be needed. The tractor will be worth a few bucks more with them.