Posted by Tom in Iowa City on March 16, 2011 at 17:03:57 from (173.30.220.194):
McCormick-Deering 22-36 Project.
Transmission almost put back together after replacing four tapered roller bearings and the spline shaft hub, and making some custom chrome-cobalt castings to take up the wear on the spline shaft, using these 6 shims between the hub and the spline shaft to successfully take up the slack. Before completing the rebuild, I decided to test the gear mesh, without the entire weight of the tranny to contend with. I put the tranny back into the frame, fitting the two tapered orientation pins, one on each side, also using the proper thickness gasket material under the tranny where it meets the frame, then bolting the tranny down.
I painted two teeth on the ring gear with marker paste and then ran the gears together, back and forth 30 times or more and all the way around several times.
The following image shows the gear mesh pattern. Without giving my opinions, which I have, I would like to have your feedback on what conclusions to draw and what to do.
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Today's Featured Article - Hydraulic Basics - Part 2 - by Curtis Von Fange. In the last entry to this series we gave a brief overview of hydraulic system theory, its basic components and how it works. Now lets take a look at some general maintenance tips that will keep our system operating to its fullest potential. The two biggest enemies to a hydraulic system are dirt and water. Dirt can score the insides of cylinders, spool valves and pumps. Wate
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