Have a Laugh on Me

While restoring my 1939 Allis B hand crank, I dissassembled the transmission for new seals and bearings. When it was finished, I asked my neighbor to give me a pull to check the oil pressure. No Pressure! I then went through a year plus period, including 5 tear downs, trying to get pressure. This included many very wise and much appreciated suggestions from this panel. I was totally stumped. One day, for the heck of it, I decided to try to hand start the machine. Lo, it cranked right up on the 5th pull! Not only that, it had oil pressure and purred like a kitten. So I hopped on it to take a spin. I put it in 1st, let out the clutch and it WENT BACKWARD. I tried reverse and it went forward. Both 2nd and 3rd went backward. So I have brilliantly discovered that if you pull it with the engine turning backwards, you"ll have no oil pressure.
Finally, my question. How could I put the transmission together so as to run backwards? Can I fix this without breaking the tractor again? I suspect the shifter. But then, look at my record.
 
I believe you've reversed the mainshaft in the tranny. The forklift version of Allis' did just that so there would be 3 reverse and one forward when seated normally. I'm thinking you'll need to tear down the tranny to get to the mainshaft. Hope this helps.
 
I made a reversed WD in the 70s. Simple unbolt/flip/rebolt. On a WC I understand you need to grind away some cast to make room for the flipped gear. Local welder says older Fords are the same- heard of unintentional flips! Big surprise. I"ve seen pics of H & M Farmalls reversed. Dunno if it"s done like on the AC.
 
Nothing to grind and I aint tellin how I know. I will say how I know didn't stay that way long enough for any one to notice it.

B44transmissionwashing-vi.jpg
 
Got to give you credit as a lot of us would not admit to doing that. I have heard of a few old cars getting the differential in wrong. By the way, all the hydrostatic drive IH tractors the differential ring gear is on opposite side. Years ago a guy brough in a hydrostatic drive from the economy model Cub Cadets. They didn't have the piston, swash plate like regular ones have. Anyway, he had the thing apart. It was totally a non service item, bushings were worn out , so I came up with some busings , put it back together and he put it back in the mower. Starts it up, goes to back out of garage and promptly runs ahead into wall. Hmmmm.
 
You have your differential ring gear on the wrong side of the pinion. Not hard to do on a tractor that has reduction gears on the axles. Pull it out and turn it around. Note: There are gaskets and shims between the axle housings and main case that set your ring gear/pinion clearance.
Double check this clearance when putting it back together.
 
PS: This has nothing to do with your transmission. Don't open it up. Just pull the axle housings away from the main case and go to work.
 
Thanks everybody--don't know what I'd do without this forum. I had no idea you could install the diferential 180 out!
Now, here's my understanding of what I'll have to do:
1. Remove the axles and all that goes with that.
2. Remove the PTO/pully assembly.
3. Remove the differential bearing carriers.
4. Rotate the differential 180
degrees.
5. Put back together. (I don't have to take the transmission off the tractor?)
6. Go have a beer.
Do I have it right?
Thanks again for your help.
Bob
 
Yup, It would be best if you remembered or marked down the number of shims on each side. I never had one of these apart that had the same both sides. Should be a paper shim/gasket a metal shim and then a paper shim until you have the correct thickness.
 
I had a similar laugh. I bought a nice looking 180 at an auction. Sounded great. I bought it and when I went to load it on the trailer it went backwards. It seems ot had had transmission work and they put the differntial in backwards.
 

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