From: Jim Newton (jnewton@laurel.com)
Date: Wed Jul 09 2003 - 12:24:37 PDT
Hi Doctor...
You can test any coil by hooking it up to a power source (24 volts in
your case) but leave the positive wire off for now. Put a piece of
stiff bailing wire in the center high-voltage connection and bend the
wire so it forms a 1/16" spark gap to the negative 24 volt connector
on the coil. Then touch the positive lead to the positive terminal
and then quickly REMOVE it...when you remove it you should see a spark
appear across the spark gap you made. If it doesn't spark, then it is
probably fried.
I'm not sure how to test a condensor...but those rarely fail, and
would not be likely to fail from having the ignition left on.
Good luck!
>Anyone know how to test a 24 volt coil and capacitor on a 71' M151A2?
>My nephew apparently got in the mutt and turned on the ignition switch, and it stayed on for about 8
>hours before I noticed it. The outer distributor was hot as a firecracker, and now it won't start. I
>pulled the spark plug and held the wire up to the block while the starter was cranked and there was
>no spark at all. I'm afraid the coil or capacitor is fried.
>TIA,
>Dr. Mike
>
>
>
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--Jim "Ike" Newton
o 1984 M1007 CUCV Military Suburban 6.2 Liter (378 CID) Turbo-Diesel Engine 5/4 Ton Cargo Capacity, 4WD
o 1971 M35A2 Military Troop/Cargo Truck "Deuce and a Half" 478 CID Turbo-Diesel Multi-Fuel Engine Air Shift Front Axle 2 1/2 Ton Cargo Capacity, 6WD
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