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News: 10/5/12 - All new members are REQUIRED to fill out the signature section of your profile. Otherwise, you may be deleted from the forum. This is to help me determine if you are a member or if you are a spammer. Thank you.

9/22/12 - I ask that you please add a signature line to your profiles on the Cletrac Forum to help me to determine who is spam and who is not. You don't need to drop everything and do this immediately, but please do it when you get a minute and you are visiting the forum. Just go to and put something in the signature area. If you no longer want to be a member on the Cletrac Forum, please remove your membership.

8/10/11 - Added a new board: Trucking and Hauling

5/30/11 - Just added several new pictures to the Photo Gallery, including several Alfta Track OC-4 working in snow logging, several from the Chicago Road Show, and some from a logging show (not all Oliver/Cletrac). All these pictures are from around 1963 and were scanned from old slides given to me by my late friend John W. Davis. Go to the Photo Gallery and click on "NEW" to see these pictures. Quality is marginal, but I think you will enjoy them.

2/13/11 - Just added a new board "New members introduce yourselves here".

Folks, I just added a new photo gallery where you can upload your own pictures with descriptions, etc. Right now this is in the beta testing stage to see how it works out. Give it a try, but please keep a backup copy of your pictures just in case we decide to use something else. I would prefer you use your real name on the photo gallery, but if you really don't want to, please use the same username as on the forum. Please put your images into the proper categories and take care when your write out your descriptions and image names so people can search for them. I am learning this as we go. At least at the beginning, I have it set up where the administrator has to approve members. I am afraid we may get porn spam in here if we leave it open. To get to the photo gallery, use this link:

Folks, when you join the forum, or when you get the chance to update your Profile, please be sure to put your location and interests. Filling out your signature would help as well. I've been getting some spammers joining and posting links to sites that are completely unrelated to Cletrac or Oliver, or anything to do with tractors. It would make it easier for me, as well as all the other members, if you guys would put your location and interest in your profile. See

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1  Cletrac Tractor Discussion / All Models Except HG, OC-3, OC-4 & General / Re: Cletrac 35 on: January 07, 2020, 12:29:29 PM
Cletrac Orange was not used until 1936. Two-tone brown is probably the original colors. They have official names.
2  Cletrac Tractor Discussion / HG, OC-3, OC-4 & General / Re: wake up? on: October 31, 2019, 12:20:44 AM
I just check back to this account every now and then, but, for the most part, everything has gone to Facebook. It's just easier for me. Most of those applying to be members on this forum are spammers, which take up lots of time to weed through. I've kept this group open in case something happens to Facebook and we can no longer use it.
3  Cletrac Tractor Discussion / All Models Except HG, OC-3, OC-4 & General / Re: Back track sprockets on: April 22, 2019, 12:34:06 PM
I doubt very much if sprockets on these late modern tractors would be cast iron. Perhaps cast steel.
4  Cletrac Tractor Discussion / HG, OC-3, OC-4 & General / Re: IXB5 Timing on: April 22, 2019, 12:32:08 PM
The water pump and mag just turn together. Therefore, you would just time the mag to the engine as usual.

Could somebody please tell me how to time the mag. to the water pump?  Thanks
5  Cletrac Tractor Discussion / All Models Except HG, OC-3, OC-4 & General / Re: New to me Oliver OC-6 Diesel on: August 08, 2018, 12:46:25 AM
6  Welcome & Rules - Please read before posting / New members introduce yourselves here / Re: Hi All!! on: July 19, 2018, 02:18:01 AM
Do you have any part of the original rubber track system? I assume this machine was recalled by Oliver and then changed back to steel.

7  Cletrac Tractor Discussion / HG, OC-3, OC-4 & General / Re: Back! (With my OC-46 again.) on: July 19, 2018, 02:16:42 AM
It's hard to tell from your picture... how far from the seat and how far from the valve stem is the hole? Could it be plugged with a pipe plug and then machined off? They do install hardened valve seats and use some kind of adhesive to hold them in, so there is something that will hold up.

8  Cletrac Tractor Discussion / All Models Except HG, OC-3, OC-4 & General / Re: ADHR on: April 07, 2018, 09:13:48 AM
I just received a message from someone in Western Queensland Australia who has a BDRH SN 1JM044 that they want to sell. This number does not match anything I have on my serial number lists, nor have I heard of a BDRH. Perhaps the "R" is unique to Australia and New Zealand?
9  Cletrac Tractor Discussion / HG, OC-3, OC-4 & General / Re: Pto shaft couplers? on: December 30, 2017, 02:08:02 AM
No message came through on this post.
10  Cletrac Tractor Discussion / HG, OC-3, OC-4 & General / Re: Engine fan bearing on: December 23, 2017, 05:13:48 PM
I would check NAPA for the head gasket. Also, Zimmerman's and Should be easy to find. The bearing should have a number on it and be easy to find at a bearing supply.
11  Cletrac Tractor Discussion / All Models Except HG, OC-3, OC-4 & General / Re: EN with fuel pump on: November 24, 2017, 12:55:59 AM
My E-62 had a fuel pump. Since it did not pump correctly, I took it off and just gravity fed the gasoline. The only time you need the fuel pump is if you are going to up extremely steep hills with less than half a tank of fuel.
12  Cletrac Tractor Discussion / All Models Except HG, OC-3, OC-4 & General / Re: Do I have the correct engine for my BGSH? on: October 29, 2017, 01:09:05 AM
I'm not sure if it will work, but if the pistons from the JXD are good, you might be able to have the block bored to fit them.
13  Cletrac Tractor Discussion / HG, OC-3, OC-4 & General / Re: 1948 Cletac HG 42 rebuild, restore, reuse. on: September 19, 2017, 09:57:07 PM

New manifolds are available from a couple sources for these. Prices aren't bad either, so I wouldn't bother fabricating.

The magneto has no connection whatsoever to the electrical system, so changing to 12 volt or negative ground will have no bearing. There are some nice small 12 volt alternators out there that fit nicely. I'm sure you'll get some responses on these. Going from positive to negative  ground would just involve reversing the battery terminals and hooking up the new alternator. Reverse terminals on the ammeter. You'll have to change light bulbs when going to 12 volt. Starter should be fine.

Hope that helps,
14  Welcome & Rules - Please read before posting / New members introduce yourselves here / Re: I am new, Don't judge! on: September 19, 2017, 08:33:42 PM
Welcome aboard T.A.!
15  Cletrac Tractor Discussion / HG, OC-3, OC-4 & General / Re: Missing Link - clutch on: September 08, 2017, 07:38:22 PM
Some of our other OC-3 experts might have an idea, but I don't know what that 90 deg bend in the rod is for. I don't think it's supposed to be there. Should be a yoke theaded on to the rod and attached to the pedal.
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