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Do not think you know. Make SURE you know. Also check the A1. and the F1 and F2.

Any time partner! Lots of others jumped in here also. Don't forget to thank yourself, you did all the work!

Just take your time and follow the book. Measure everything twice, if not three times. Can't hurt, and might save you big time money. I think Light in the Dark, and a few others here might be able to help with some of your parts needs. I wanted to break the tests down a bit last night, but the...

Skip to page 213, (PDF reader) yes, you can remove the end cover. Just don't forget to take the Neg cable off, because if someone bumped the starter, big damage is possible.

Go to PDF reader page 183, of the -24 TM. There you will find the trouble shooting procedure for checking the Excitor circuit. Print it out and follow it.

correct. It's been a while since I looked at the circuit. Getting old.

That's the reason R14 is there. To lower the voltage/amperage. 8.5 volts sounds about right. So, if you have 8.5 volts on the A1-F+, and no volts or hertz reading, we need to maybe look into the TM to find the procedure to test the Excitor circuits. Because 8.5 volts is way more then is needed...

From S1-7 wire # 140A goes to TB5-14 TB5-14 wire #140C goes to K15A coil K15B coil wire# 100AH to TB5-10 (ground) When all this happens, (can you see the little red flag in K15 move? Close?) Then set of K15 contacts closes. K15-8 #151A to R14-1 R14-1 through R14, out on R14-2, through CR2 and...

Next mesurment. While holding S1 in the start position, voltage goes to K15 coil. The K15 kloses contacts, allowing voltage from pin 7 to go to the A1. So hold up the S1 and mesure at F+ on the A1. You should get 24 volts. Now it's 24:30, so you got it from here. It's bed time for this old soldier.

Good! If it the worst thing you do in life, your golden! You ou said your getting 24 volts "for a blip" at S1. By that do you mean when you mesure at the S1 on pin 7, that you get 24 volts and it goes away? Because as long as you hold S1 in the start position, you should get voltage there. So...

If you are getting 0, (zero) volts AC from the mag pickup, while the engine is cranking over, the mag pickup is bad, or mal adjusted. I assume you read the procedure in the TM for testing and replacement of the mag pick up. Did you stall the mag pickup IAW the TM?

The grinding was the mag pickup. now, disconnect the two leads to the mag pickup. Set the multimeter to AC voltage. Mesure at the two leads that go to the mag pickup. Have someone turn the engine over with the S1 or S10. What voltage reading do you get?

Did you pull the Mag Pickup out?