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News: Wishing you folks all a very Merry Christmas! From Blake Malkamaki and Cletrac.org.
 
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 1 
 on: July 10, 2020, 08:01:12 PM 
Started by M2nut - Last post by M2nut
Hello everyone.   Iím wondering if anyone can tell me the logic behind the hood numbers on m2 cletracs.   Iím puzzled why the data plate ordnance numbers are 3 to 4 digits  and the hood numbers are 6 digits ?  There are  a few period photos that some early cletracs that have 5 digits painted on the seat rail side .  Almost all period photos have the first digit being a 9, which probably was the serial number range assigned to the type?  Any ideas?

 2 
 on: May 11, 2020, 09:31:39 PM 
Started by donlaflam - Last post by Robert Barbour
The rod spring 37202 is the return spring and should have pressure on the housing when the clutch is engaged.  The sleeve spring is an anti rattle spring the holds the release bearing on the yoke.  The important thing is to have the 3 112 211 screws all set to the correct length.

 3 
 on: April 15, 2020, 10:38:17 AM 
Started by donlaflam - Last post by donlaflam
Good morning everyone-

I am a new to this group and a new HG owner with some basic mechanical knowledge, but learning as I go.  last fall the clutch stopped functioning on my HG, I tried many of the tips I found online about putting a load on, etc, however I decided to pull it into the barn and take it apart along with a few other projects that needed to be done on it. 

I pulled the case yesterday and found that the friction plate was totally shot.  I'll be replacing that along with the majority of the bearings inside.  My question, however is in regard to the springs within the assembly.  should I replace these?  they seem to function properly, however due to their age i'm sure they have lost some of their tension.

the two i am most concerned about are :

1.  Throw out sleeve spring  112754
2.  Yoke rod spring  37202

any advice you could offer would be most helpful.

thanks in advance,
Don

 4 
 on: March 23, 2020, 12:54:03 PM 
Started by sparky mark - Last post by sparky mark
  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.


 5 
 on: March 15, 2020, 12:12:45 PM 
Started by 1956oc3 - Last post by Subgates
Not being on fb at all I'm loving that.

Thanks Blake

 6 
 on: February 26, 2020, 06:53:04 PM 
Started by cork - Last post by Robert Barbour
The pump shaft is gear driven from the crankshaft at engine speed.  The shaft extends through the pump to drive the mag.

 7 
 on: February 18, 2020, 08:42:19 AM 
Started by cork - Last post by Stanton
Is there no way that pump and mag get unsynced?

 8 
 on: January 17, 2020, 04:48:42 PM 
Started by nikoli - Last post by Robert Barbour
The OC 46 loader would be the best machine because of the lower first gear and weight.   There were 3 engines used in the OC 46, a 4 cyl gas and 3 cyl gas and diesel.  All are rated the same horse power wise.  But the 3 cyl engines are much heavier duty.  The diesels are the best as all are dry sleeved and the sleeves are very hard and last a long time.  There are 3 version of the 3 cyl gas and diesel engines.  The crankshaft was changed twice so there are 3 diesel blocks and cranks.  The first two version of the gas engine are not sleeved so there are two gas blocks.  The last gas version used the same sleeved block as the diesel, so is the best of the gas engines.  So since the newest of the OC 46 loaders are 55  years old  it is not easy to find one with an engine that is not wore out.  Parts are available for them but the diesel pistons are hard to find.  If you are looking to buy a 3 cyl machine post the engine serial number and I can tell you what it is.  I have a loader with a new 4 cylinder engine and a 3 cyl diesel that is rebuilt and both work well.

 9 
 on: January 07, 2020, 01:49:19 PM 
Started by nikoli - Last post by nikoli
Good to know!  Thanks for the real world advice.

 10 
 on: January 07, 2020, 12:29:29 PM 
Started by Don wilson - Last post by Blake Malkamaki
Cletrac Orange was not used until 1936. Two-tone brown is probably the original colors. They have official names.

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