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Home made Crawler build


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I debated about starting a post on this until further along, but I’m going to anyway. I’ll warn everyone that this may take a lot longer than I will like but I have to do this in the very little spare time I have

Before I was even born, sometime in the 1950’s  my Dad wanted a crawler on the farm, so he built one. He started with a rear end from a clark forklift, made the tracks from scratch, and used a model A engine and transmission. Fenders and firewall made from 1” thick planks, the hood from the skin of a thrown out refrigerator. Blade was lifted by a hand operated hydraulic pump and cylinder. 
 

Fast forward to the Early 80’s, I purchased a Datsun and did an engine and transmission transplant, but It was very poorly done. It ran ok, but overheated all the time, and got pushed into an out of the way corner of the barn. 
 

Fast forward to a few weeks ago. My two nephews bought a parts O4, that runs. The idea has been kicking around in my head for a number years the put a IH engine in the crawler and this was the opportunity to Make it happen. Here are a few pictures of what is happening. There will be some challenges, but will be the fun to figure out

 

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Tell you the the truth️ I like it ?keep going

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Got a little more done today. Cut off all the junk bracket, and welds. Time to clean up some and Get the O4 here to be split. Then I really will know What the project will shape up to be

 

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Its cool cant wait to see it done !!!!

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I for one am completely excited to see this finally in the shop. I as well as many other grandchildren have spent countless hours crawling on, over, and around this old crawler never having seen or experienced it outside of the barn. There have been many stories shared at family gatherings about the memories you "kids" (mom, aunts and uncles) have and created around this old crawler and the many other mechanical wonders grandfather assembled. Its time for this one to breath new life.

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  • 2 months later...

Well SAM86 and I had some time to work on the crawler today, hot and I wanted to get out on the lake so we didn’t work too long. Got the 04 to the barn, torn down and split. We even did some preliminary looking at how the mounting will go. We both are getting excited about how this will turn out. Next up is to figure out the transmission coupling and mounting. Trans is out of a 1936 Ford truck

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  • 4 weeks later...

Got a few hours to work on this project today. Got the pto off the transmission I’m going to use, and made a cover plate for that. Pulled the clutch out of the 04 and got everything Unstuck and loosened up. I found that someone has replaced the clutch, and pilot bearing, however the previous bearing must have been locked up and wore the input shaft. Not a problem, I will put up in the lathe, regrind and make a sleeve. 

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Few more hours working on the crawler today. Made a bushing for the clutch shaft an tach welded in place, and turn the shaft to match the bearing. I drilled out the holes in the casting where the clutch engagement shaft go through to get them round and made bushings to fit, tach those to the shafts. Reinstalled the clutch

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More lathe work. Got rear yolk off transmission, torched off the old adapter from the drive sprocket, and did a bunch of figuring....  Cut the ears off the yold, and turned to get a diameter to work with. Next I spent way more time boring the sprocket out. It was hard!  Got the sprocket pressed on the yolk, just have to weld that up now. 

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  • 3 months later...

Plowboy64

Unfortunately no. Everything sits like the pictures. I help in the fall hauling apples for my son in law, usually about 16 to 30 hours a week on top of my real job in a start up company (Evolve Additive Solutions) https://www.evolveadditive.com/We are are on a huge push to get our first production machine together, checked out out and to the customer, that has only added a minimum of 60 to 70 hours a week. Now the holidays which we spend a lot of effort and time with our family. I hope that after the new year I can find some time to get back on it. I will have to split time with some house updates. With a knee that is torn up, and permanent back issue that has gotten worse so I have constant pain / numbness down my left leg, I just don’t  get as much done as fast as I used to ?

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  • 2 weeks later...

Well it is after new years. Only had a couple of hours today to play. I had to get the valve grinder set up for a friend that is rebuilding a 50’s Hudson, so it cut into my time. Bruce is 84 and going strong, but doing this for him so he can see his dream come to life, priceless. 
 

Finished the drive gear, and pressed a bushing in the input yolk, got it turned. Spent so time measuring and planning, the real fun is about to begin. Getting excited, should be seeing big changes soon 

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Couple of hours messing around, measuring, thinking, finally made a pattern to see how the transmission mount might look like. I looked a bunch of options, finally settled on the simplest solution, even though it pushes the transmission back about 1 and 1/2” further than I wanted. Measured up for the steel I want, get that ordered this week

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Did you decide on bolting the transmission to the existing frame without cutting it down, or will you be cutting it shorter? 

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Going to see what bolting looks like. I was able to get transmission down to 13 1/2” long, that was 1 1/2” shorter than I thought i was going to get to. Way easier to bolt up than cutting off the casting. Moves engine out another inch but want to see what this looks like. Plate will be 1/4”, with a rear support right by the sprocket. The front  plate only has to keep input shaft in line

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Dad made a jig to make the tracks. The “chains” are roughly 3/4 x 2 with holes drilled, the pads are 1/4 x 8 x8, and the grousers are rods, 3/8 welded on. Pipe pieces are the bushings

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My dad made a tractor for my brother and in 1952, when I was six years old.  We still have the tractor, and and a trailer that he made, however the engine is gone and so os the steering gear.   It looks like he used a hand drill to make the change from horizontal to vertical.  I believe the engine was maybe a Tecumseh.  My oldest son would like to get the tractor restored but.

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  • 1 month later...

Weather was warm enough to spend some time in the shop today. Got my new plasma cutter about a month ago, and its been too cold to use it. Went to plug it in, and wrong plug, ran to Lowes to get parts to make an adapter. Got that made, now where to put the plasma cutter? 
 

 Found some odds and ends and made a stand for the plasma. over the welder
 

Started to work on the transmission mounting plate. Got it cut out, and a few holes drilled. I sure wish I bought a plasma cutter a long time ago, that thing works great! 

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  • 3 weeks later...

A little more progress today. Made mount plates for transmission, and did a test fit. Need to make some minor mods, the transmission shaft is about 1/4 too low 

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