Case 25×45 Tractor: Cranking Problem

By Dean S. Zehr
Published on May 1, 1995

300 Leon Drive, Apt. 4 Jonesboro, Louisiana 71251

In Mackinaw, Illinois, during the 1930s, my father Dan S. Zehr
owned and operated his first gasoline tractor. The steamers were
still reserved for threshing, but rather than steam engines for
corn shelling, he used the Case 25×45 for winter shelling jobs. The
little beast was intended to save time and effort, and was used
with a Minneapolis steel sheller, I believe a #4 model. All
consideration and forgiveness might be granted and due people he
used, for they, too, possessed only the steam power tricks, and
engineering know-how of their time, for whatever problem that had
to be solved to get the job done. The gasoline tractor had just
appeared over the horizon.

I believe he had purchased the animal from the J. I. Case Branch
operation in Peoria, Illinois. In those days, tractor mechanics
were rare and possibly not exactly astute at problem solving, and
the old steam engineer probably did not even have the benefit of an
instruction book. So if there was to be any help from informed
people, it would be a rarity that some franchised individual was
available on some below-zero morning to trouble shoot. The
alternative was the ‘hard way,’ which was time and energy
consuming, as well as very frustrating. Whether a ‘tractor
specialist’ had been contacted for a discussion or high level
consultation as to why this (blankety-blank) tractor was such a
brute to start, is not known, but it was the #1 conversation with
friends and competitors.

The problem seemed to be just a contrary female in nature, the
starting only seemed to end in a terrible cranking ordeal. Words
new to me were exposed when it came time to start preparing to set
up and move to a rural crib job. The process consisted of two men
taking turns in cranking the thing’ for what seemed hours, with
no firing or back-firing occurring for encouragement. Just crank
until out of breath, almost to the point of collapsing, and then
the relief cranker take over for his turn, for the partner was
forced to back-off and think kind words to rename the machine.

A magneto man was summoned, and he had his hand at trying the
analysis for his turn, things such as compression, valve job, short
in the wiring, crude analysis of the fuel, old fuel, wrong brand,
(some brands were in doubt), wrong brand of oil in crankcase, all
provided mystic thinking for the problem. The cranking would
continue for hours and success was not the word.

The noise of the crank on the flywheel was an odd sound. The
crank was placed on the engine flywheel hub, which had
indentations, in the interior ring of the outer ring, and there was
a pawl that engaged into the indentations inside the flywheel, as
the cranker lifted, the wheel turned the crankshaft to the point of
maximum crank travel, and hopefully an explosion occurred in one of
the four cylinders. If not, the crank hit the surge screw in the
governor housing and the pawl collapsed as a ‘glitch’ sound
occurred. Then a dead bang from the violent collision of the steel
crank arm and the governor housing made of cast iron. At that time
the bar of the crank collided with the bronze plug of the governor
surge screw and then the pawl collapsed with a ‘glitch’
sound’bang-glitch,’ then a clatter as the crank fell
down.

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