"I didn't have long enough arms to check the coil voltage while cranking"
All you need is a long jumper wire with alligator clips, or even a simple length of insulated wire. Loosen the nut on the coil's primary terminal that connects to the distributor and slip the stripped end of the wire under it and snug it down, lead the extra wire towards the operator's station and connect your meter to a good ground and to that temporary wire and you can monitor the primary ignition voltage during cranking from the comfort and safety of the seat.
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Today's Featured Article - Tractor Profile: Allis-Chalmers WD45 (Gas Version) - by Staff. Beginning production in 1953, the WD45 had the same general look as the WD tractor which was produced earlier - but was much more powerful. This was due to the new 4-cylinder "Power Crater" gasoline engine with a 4 x 4-1/2 inch bore and stroke. Some people feel this was one of the most significant tractors offered by Allis-Chalmers in those days. Nothing in its weight or power class could match its performance. In 1954 they began offering the WD45 with the new "Snap-Coupler&quo
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