Messages

  Just wondering if this was a patented invention or not.
  "With a double-cut sprocket, the tooth pitch is half that of the chain. Therefore, the number of effective teeth is half the number of actual teeth. If the sprocket has an odd number of teeth, the number of effective teeth is fractional, and each tooth engages the chain only on every other revolution. This cuts tooth wear almost in half, nearly doubling sprocket life. The same is not inherently true for sprockets with even numbers of teeth."
  My model "E" CLETRAC had an odd number of teeth on the sprocket. I believe that the CAT model "60" also had an odd number of teeth on the sprocket.
  Seems like a very clever idea.
  Did all CLETRAC models do this? Did most manufacturer of tracked tractors do this?
Thanks in advance for any replies.

 It is "unstyled" with the letter "E" at the top of the radiator. Mine is also "unstyled" with the letters "CLETRAC" at the top of the radiator.
Will try to attach the picture.

This is from the Mecum auction in September. The tag says "E-62" and serial number is "6A94".
I can't find this in the serial number list. Mecum should know that it is not from 1924, but is this a real serial number?
I have a model "E" Cletrac serial number "6A78" which is in the serial number list as the last one in 1935.
Thanks in advance for your help.

What transmission oil should I use in my Model "E"? Something that I can find at TSC or locally please.
  Should I wash it down inside with kerosene first?
  When I replace the transmission top cover, should I use some type of sealer since the gasket is gone?
  Thanks in advance for your help.