1872 Rebuild & Repower

[cyr2872]

Originally Posted by farmall fred

Thanks guys. If it all works out the way I vision it, it should be a really great running/driving grass killer when done. Today I hope to get the rear end removed and tore down to see if I can save it.

Oh it will be! Looking good!

[farmall fred]

Today I removed the rear end and tore the hydro down to check out why it was leaking from the input shaft. The previous owned had ran it with a bad rag joint and because it was wobbling it ruined the input shaft where the needle bearing rides on it I think he must have drove it until it finally ruined the drive shaft as it came with a new one installed.. I then decided to dissemble my Cyclops rear and do some parts swapping between it and the Super rear. I will swap the hydro output gear and reduction gear from the Super into the Cyclops rear. Should be a good beefy rear end when done as it will then have the larger axles in. I will need to order some new axle bearings and seals for the Cyclops rear tomorrow. Will get some pictures when it is all tore down. I did get a couple of hours on the number 1 1872 mowing this afternoon.

[farmall fred]

Not much progress on the 1872 lately. Had to get the combine ready for wheat harvest and then cut the wheat. Finished up early this week and then had to do some repairs on the mower deck on 1872#1 so I can mow grass, It was getting very noisy. Will finish them up today and then try to finish up the rebuild of the rear end. I did get a chance to het the hydro reassembled using the best parts of the one from the 1864 and the 1872 units. Have a good one.
Tom

[farmall fred]

Hard to believe it has been over five months since I posted any progress on the 1872 rebuild. I finally got some time to devote to it. I bought a pair of 26X12X12 tru powers and some 10-1/2 inch wide rims. Also a set of 18X8.50X8 V61's for the front. Got the rear rims welded together and sandblasted the fronts. Painted them right before supper today. Also got the three point sandblasted and painted. I have it set up with its own lift cyl. I am planning on using the rear fuel tank and fenders from the 1864 I parted so I will have the low fuel fill. I might see if I can also make the tilt steering from the 1864 work on it. When I am done I will have the tractor that should have been built instead of the plastic cyclops. I plan on painting it red like the 82 series with custom decals for it. I forgot to bring in my camera so I will try to post some pictures tomorrow.

[farmall fred]

Time for some pictures of the progress on the 1872.
Rear end ready for assy.
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Rear end assembled, rebuilt hydro attached ready to install. I used the 1864 rear end with the super reduction gears installed, the hydro is a combination of the best parts of the super and the 1864. I installed all new seals, wheel bearings and gaskets and drilled the oil drainback holes in the center section. To get the correct back lash and preload on the ring gear I had to remove one shim from the carrier bearings and shift some shims around. The doner 1864 was bought new by my uncle and as far as I know it had never been worked on so it was set up wrong from the factory. Must have been a Friday afternoon build!
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Three point with reworked lift cyl mount and painted. Lift cyl is installed to the right side mounting plate behind back plate I will now have split lift hydraulics.

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26X12X12 trupowers, 18x8.50x8 V61's. Rim's sandblasted & epoxy primered.
IMG_20161216_171559.jpg IMG_20161228_162418.jpg
Rims painted with IH 935 white with Valspar hardener.
IMG_20161229_101653.jpg
Mocked up with new tires and Cyclops fenders and seat pan.This will allow me to use the rear fuel tank, gettin to old to lift them five gal gas cans to the front tank.
IMG_20161229_173914.jpg

I tried to see if I could use the tilt steering from the 1864 but with my three spool hydraulic valve and the fact that the dash plastic from the 1864 is wider and shaped different than the 1872 sheet metal makes it impractical. My next project is to rework the firewall taking the offset out of it and then make a battery box mount under the hood like used on a 782D. I also need to move my electric fuel pump and inlet fuel filter back under the rear fender pan so it does not have to suck fuel a long distance. Hope to get this done before Saturday evening. I have an old tilt,telescope GM column I may see if I can shorten and adapt to the cub dash. this will put the tilt mechanism above the dash. I have a spare tower and a broken dash face plate I can cut up to see if it will work. Have a good one
Tom

[jaynjeep]

Very nice work Fred!! I like the way this one is headed!!

I know how it is when you have to shove a project in the corner!! Feels good to be able to get it back out after a long slumber!!

Im interested to see how the dash and steering work out! Keep us posted!!

[farmall fred]

I did make some progress on the project but no pictures. I modified the firewall to take the old fuel tank step out of it then trimmed the height down to match, this will also eliminate the air cleaner clearance issue when installing a command engine in a 82 style tractor. I will be putting my battery under the hood on the right side and that will leave a space on the left for a small tool box. I started routing my hyd lines for the triple valves and also redid the control levers for the valve stack. I had originally had just used some tubing that slipped together to make them but the fit up was poor and they had a lot of play in them so I turned down a piece of tubing the get a good fit up and now they work very well. I also started blasting some of the Cyclops parts I am using like the tunnel cover and fuel tank/fender support and the powder coat on them is almost impossible to remove as it it very rubbery. I tried to sand down the spots where the powder coat had flaked off and it does not sand well. MTD used a very tough powder coat but their surface prep leaves a lot to be desired. Applied properly powder coat should not flake off. In my last job I managed a powder coat line and and we had to pass military requirements Our powder did not flake off. Today I hope to finish the hyd lines and move my electric fuel pump and pressure regulator back to the fender support and get the fuel lines ran. If all goes well I should be able to start it up and tesst out my rebuilt hydro and rear end by the weekend. Next I have to build a new wiring harness for it.
Later, Tom

[Dirty Steve]

Looking real nice! Keep at it!

[farmall fred]

Yesterday my sign maker called me to let me know he had the drawings done on my custom decals for my 1872 project. I used the ideas that bocephus1991 had but made mine slightly narrower and left off the hydro lettering. I think they are going to look great so I also had him make a second set for my other 1872 with the 23 hp Command engine swap. I will then have a 2872 and a 2372 when both are painted red. Should have the decals later tomorrow. I may have to get the hood painted so I can see what they will really look like.
Later,
Tom

[twoton]

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