well, here is how I time an F series mag to engine. loosen all 4 spark plugs and remove #1. Turn engine over until you feel it coming up on compression on #1. STOP. Take a 1/4" wood dowel rod, and place into plug hole, until it rests on the top of the piston. continue turning engine over until you FEEL TDC. If you overshoot, no crisis, just turn the engine backwards a little. When you are sure you are on TDC, then take the mag, and using a finish nail (10p works best for me), insert it into the oiler on the face of the impulse cover until you catch the impulse pawl, and hold it up. If you have the older style mag, there will be a little tab that you can pull up on to disengage the impulse. you can now spin the mag drive without the impulse engaging. make sure the spark advance is in the full retarded position.
Now, with the distributor cap off, rotate the drive until the center the brass insert in the rotor is oriented to the #1 plug wire post on the cap. Without disturbing the position of the mag, now place it on the mount about 1" away from the drive on the governor. Take out the 2 1/4" bolts holding the coupler on the governor drive. Slide the mag and the coupler disk over until it meets the governor drive. Rotate the coupler on the governor until the mag, coupling disk, and governor drive all engage. Locate the 2 holes in the governor coupler that you can thread the 1/4" in bolts into without moving or disturbing the orientation of the mag. They should be 180 degrees apart. Tighten bolts and install mag mounting bolts.
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Today's Featured Article - Listening to Your Tractor - by Curtis Von Fange. Years ago there was a TV show about a talking car. Unless you are from another planet, physically or otherwise, I don’t think our internal combustion buddies will talk and tell us their problems. But, on the other hand, there is a secret language that our mechanical companions readily do speak. It is an interesting form of communication that involves all the senses of the listener. In this series we are going to investigate and learn the basic rudimentary skills of understanding this lingo.
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