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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 / HG, OC-3, OC-4 & General / Having problems reassembling HG Track Rollers on: August 06, 2018, 11:18:05 AM
So far I have only been able to get 3 rollers reassembled. I'm using new shafts and brass bushings but reusing the bushing retainers. I get everything assembled and the shaft doesn't spin freely. The first one I screwed up was due to dirt getting in during assembly. Then I noticed some of my bushings had the ends a bit mushroomed from installation. I tried to grind this down but haven't had luck saving those bushings. The last one I attempted I slid the bushing assembly on both ends of the shaft be fore assembley. Everything side on nice. I installed one side and the shaft spun nice but after installing the second side the shaft is bound. So what is the trick??? fwiw I'm using a vice to press in the bushings like the instruction manual shows.
2  Cletrac Tractor Discussion / HG, OC-3, OC-4 & General / Re: Engine Rebuild DIY or farm it out? on: June 06, 2018, 10:51:14 AM
looks like I may have the insert type. I haven't looked at them yet but according to the engine serial number I should be safe. I'm waiting on a caliper set and a cylinder mic. I'm not sure yet what other tools I'll need besides the piston ring compressor and honer.
3  Welcome & Rules - Please read before posting / New members introduce yourselves here / Hi All!! on: June 02, 2018, 11:24:46 AM
Thanks for the membership. I'm from Guerneville Ca and am currently restoring an Oliver HGR-42 which now has metal tracks. We got it in 2008 from my wife's employer. I was able to get it started and thought I would just start playing with it. My wife had different ideas and as she was pressure washing it, kept asking me to take another piece off for easier cleaning. The next thing you know the whole tractor is disassembled and ready fort a complete rebuild! The restore got put on the back shelf for about 5 years but now we are in full swing again. I have a good memory for taking things apart and reassembly but never had to remember this long. Nuts and bolts are just in coffee cans! :-) Here is what she looked like when I went to pick her up. BTW wife nick named her Cricket.

4  Cletrac Tractor Discussion / HG, OC-3, OC-4 & General / Engine Rebuild DIY or farm it out? on: June 02, 2018, 11:09:35 AM
I'm in the process of rebuilding an Oliver HGR-42. I'm wondering if I should attempt the engine rebuild myself or send it out. I don't have any specialty tools other than a piston ring compressor and a cylinder honer the type you put in a drill. I'm good at disassembly and re assembly. Actually the tractor is in a million pieces right now. The other thing is I don't know of any local engine shops that do antique tractors. I'm in Sonoma County CA if anyone knows of a good shop.
Here is the engine plate.

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