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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 / Re: OC46 final drive hub again on: April 22, 2017, 06:06:30 AM
I'd go with Doug's solution except for the radiating cracks from some of the holes. That would worry me, I hate doing things twice. If did I'd be sure to clean the oil out of the cracks as best I could & use some wicking loctite to try to keep them "glued" together. Since they are steel, welding & re-drilling is at least, another option.

Scott R
2  Cletrac Tractor Discussion / HG, OC-3, OC-4 & General / Re: Help with magneto install on: April 22, 2017, 05:55:00 AM
Well, if it ran for 8 to 10 seconds you're very close. If you had fuel continuing to run after the engine died I'd say it more than likely flooded. It sounds like a bad needle & seat in the carb or debris in the fuel holding the needle open. Since it hasn't run in years I would expect all kinds of stuff coming out of the exhaust, bugs, pieces of rust etc. Glad to hear another Cletrac has been "resurrected". Sorry it was so long for the reply, work is backed up now & a lot of people here are in the field this time of year. I'd love to see some pictures, I'm sure everyone else would too. Good luck.

Scott R.
3  Cletrac Tractor Discussion / HG, OC-3, OC-4 & General / Re: Help with magneto install on: April 05, 2017, 07:52:19 PM
Icenine, I'll give it a try. If you are having trouble turning the engine over take all four spark plugs out. This will allow the engine to turn easily & smoothly.
The mark you see is a "D-C" if it's the same as my flywheels. The "D" may have a small "L" inside of it. That should the the "dead center" mark. That's when the piston is exactly at the top of its stroke. The "spark" line is 1 1/2 inches BEFORE you get to the "D-C" line, when you turn the engine in the direction the engine runs. When you see that mark & feel compression on the front cylinder you are in the right spot.
In your picture I see yellow paint on two teeth of the magneto gear, if that is what i see, you should also have a mark on one tooth on the "rotor". The rotor is the black gear with the pointer arm, with the white line on it. If you line up the tooth marked on the rotor, with the yellow paint marked teeth on the magneto, you should be able to turn the magneto so the white line on the pointer of the rotor so you can see it in the window on the magneto cap. With it in this position you should be able to mount it to the engine just snug. Install the plugs & wires & it should be able to start. Install a timing lite & shine it at flywheel, move the magneto back & forth. You should be able to bring the line so it shows in the center of the timing hole. Then lock the magneto in place. 

See if that makes sense??!!

Scott R
4  Cletrac Tractor Discussion / HG, OC-3, OC-4 & General / Re: OC 3 Starter Motor on: October 26, 2016, 03:55:11 PM
You might try Triodiode on E bay, he's got tons of delco parts & ships many parts for free, got some rebuild parts, for the same starter you have, over the summer. They were original delco factory stuff. Good people to deal with. I've got no affiliation other than being a purchaser.

5  Welcome & Rules - Please read before posting / New members introduce yourselves here / Re: New member in western Washington state on: October 26, 2016, 03:34:25 PM
You guys are practically neighbors, welcome Abe.

6  Welcome & Rules - Please read before posting / New members introduce yourselves here / Re: Newish Member from Stratford, New Zealand on: October 26, 2016, 03:28:58 PM
Quote from: Steve Rowat link=topic=4281.msg16210#msg16210 date=1465532240 Three Tractors on five acres - do I have enough?
Well that depends Steve! Do you have any more space to park another? That's how I determine how many I should have! Welcome aboard !

7  Welcome & Rules - Please read before posting / New members introduce yourselves here / Re: New member from Aptos CA needs help identifying his tractor! on: October 26, 2016, 03:20:55 PM
Looks like an HG to me too, if you can't find the serial number plate check for a casting date, cast into the engine block behind the magneto. Never seen one with a coil spring & shock absorber under the seat. The 3-point hitch has a hydraulically adjustable top link & looks like the front support arms have been either replaced or welded solidly to the track frames, maybe the blade manufacturer?

8  Welcome & Rules - Please read before posting / New members introduce yourselves here / Re: New from West Michigan, I'm Troy! on: October 26, 2016, 02:57:35 PM
Great story Troy! It's always best to establish your tractor hobby precedent before finalizing anything with a girlfriend. Hopefully she'll want to be involved, and perhaps... she'll even want her own!

That could get expensive, LOL! Welcome to the group Troy, please send pictures!

9  Welcome & Rules - Please read before posting / New members introduce yourselves here / Re: N.E. Oregon. New OC-3 owner! on: October 26, 2016, 12:58:40 PM
Will, your OC3 with a three point hitch is indeed a rare bird, would love to see some pictures. As for the "grease pot", that may be why your rollers & idlers are worn. The rollers & idlers should only be supplied with oil, 90 weight mineral oil to be specific. Many people thought grease would be better but once dirt gets into the grease it becomes like grinding paste & wears out the roller/idler bushings. You are supposed to oil all the rollers/idlers daily, this pushes out the dirt to reduce wear. The only exception to this is John Deere "corn head grease" intended for corn harvesting machinery, it is a solid when not in motion but as soon as it gets moved around it becomes a liquid.  Good luck. Scott
10  Parts & Stuff / Product and Accessory Forum / Re: Further on Cletrac Orange Paint on: October 20, 2016, 05:50:40 PM
I have a Ditzler paint chip card for tractors, it's antique too, it lists Cletrac Orange as part number DAE-60045. Hope it is helpful to someone.
11  Cletrac Tractor Discussion / HG, OC-3, OC-4 & General / OC3 backhoe attachment on: October 16, 2016, 04:14:28 PM
Just purchased a backhoe attachment for an OC3/HG. Needs some hoses & I think it's missing a part or two. Is there any info on these floating around the internet? The foot attachment is in pretty bad shape but it's easy to fabricate I think. I'm mostly looking for how it exactly attaches & what parts I may be missing. The fellow I got it from bought it from Oliver Chris a few years ago, never got around to messing with it & ended up buying a nice kubota with loader & hoe attachment. Funny that it took his new bx5800 Kubota & a little Yanmar tractor to lift this monster high enough to get it up on my trailer even though it's only 16 inches off "the deck"
Any & all help is appreciated.
Thanks Scott.
12  Cletrac Tractor Discussion / HG, OC-3, OC-4 & General / Re: Newbie needs help on: October 15, 2016, 04:50:37 AM
Mike there is another way that may help you date your machine. Cast  into the block on the right hand side, behind the magneto is a six number date. This is the date the engine block was cast at the Hercules engine factory. It is my understanding that cylinder blocks were allowed to "season" for a year before they were machined & assembled into engines, so your should be about a year, + or -, newer than that date.

Edited for stupidity**
13  Cletrac Tractor Discussion / HG, OC-3, OC-4 & General / Re: Newbie needs help on: October 10, 2016, 03:54:02 PM
If it still has the tractor SN plate it will be located either on the flywheel housing right hand side, or the right frame rail just in front of where the large "U bolt" that wraps around the drive housing, bolts to the frame.  The IXK3 engine was first used in 1940 but continued to be used until 1950. If it has any of the original paint or decals they can be helpful in dating an HG/OC3. There is a link on the page that will take you to a list of updates on the HG/OC3 tractors. If you still have difficulty in dating it, next time you need parts, Zimmerman's may be able to give you a date with the engine SN. Good luck & welcome to the forum
14  Cletrac Tractor Discussion / HG, OC-3, OC-4 & General / Re: Anyone mount a snowblade on a hg with a ware loader ? on: October 10, 2016, 03:33:40 PM
I've not done it yet, but I plan on adding the adapter plate that is commonly used on skid steer loaders these days. I plan on having multiple accessories like a set of pallet forks, snow plow blade, hydraulically driven trencher and of course a bucket. The adapter plate is quick & easy to change accessories by flipping two levers & pitching the top of the plate foreword to hook it to the accessory then roll the implement back & flip the levers & your good to go! At that point, anything you can put on a skid steer will work on my HG.

15  Cletrac Tractor Discussion / All Models Except HG, OC-3, OC-4 & General / Re: Cletrac W barn find on: September 20, 2016, 04:06:10 PM
Great find Erik! Love to find an early 'trac like that. Keep the pictures coming.
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