Trivial SOS trivia

Bern · Feb 12, 2018

I'm in the middle of a 5000 SOS overhaul project. Problem was found to be a worn bearing on the input counter-shaft allowing for shaft misalignment and subsequent low pressure to the #1 band and direct-drive clutch.

I have the case stripped down and washed up real nice, and something caught my eye. Notice the two bumps in the casting on both the inside and outside of the case. This is present on both sides. Anyone here wish to speculate what they're there for? I have not a clue. I've scoured all of my old 5000 lit, and every pic I can find of that area of the casting is as smooth as can be.

I'm not losing any sleep over this, I'm just really curious.

Larry NCKS · Feb 12, 2018

Those are "curiosity killed the cat" bumps. :lol: I think they're there just to make you wonder why! 8)

Keith Williams · Feb 13, 2018

Bern,
My guess would be that there were "bad places" in the original casting that were repaired by cutting square holes and putting in plugs.
Those were then welded in. Those are in "noncritical areas that would not cause the casting to get rejected.

Without watching the process of pouring the steel into that mold, we can only guess at how that worked. I would think that these were cast in a "sand mold".

Another thought is that they may have tried to get an extra pour or more out of a mold and had "imperfections" in the mold.
(Jack says to John, "they told us we can only get 5 castings out of each mold, we'll show them we can get 10") LOL!
OR
This one was cast at 11:50 on the 4-12 shift.
OR my favorite
The boss walks up and says "That mold can make one more Tranny housing", The workers say "It's got holes in it".
The boss says "We can plug them!" , "They'll buff right out!".

Keith

kip78 · Feb 13, 2018

From my understanding, you can only get one pour per mold. These are definitely sand cast and they might have a "rework" process to save the castings.

riveroadrat · Feb 13, 2018

That looks real professional, er slightly less than.

Bern · Feb 13, 2018

Good thoughts, and entirely plausible, however these plugs are on both side of the case, both LH and RH sides, in identical positions. This leads me to suspect that this was an intentional experiment of some kind to route something through there, such as oil lines.

Interestingly enough, these holes are in roughly the same location as the two nipples in the later 8 speed transmissions. The case I'm working on was cast in 1966, so I'm starting to wonder if the first engineering stages of Dual Power were being worked on at that time?

Dean · Feb 13, 2018

Probably repaired manufacturing defects.

Dean

THE LIMEY · Feb 13, 2018

Here in the UK my Ford 5000 select o speed has those blocks on both sides too. It is interesting to see others thoughts on why they are there. Posting images on Facebook here in the UK bought no answers. I have always thought that they were part of the mould like a packing block that has become accidently part of the casting. The select o speed gearbox casting always appears rougher than the 8 speed casting, could they have been cast by an outside contractor?

Keith Williams · Feb 13, 2018

Bern,
My only experience with a 5000 SOS was with a 5200 (5000 row crop) I test drove.
Someone had cut/spliced the oil cooler lines to the radiator.
I hit the brakes to apply some pressure on the Tranny to see if it slipped. The hose came off!

There was a big fat mess on the ground and I was NOT interested in that tractor any longer.
I already had a 7200 cash box and thought the 5200 would have been a good addition to the fleet.

I just looked at that case on the parts page and did not see the oil cooler lines.
Where do they come out at? Could they have been experimenting with more cooling capacity?

Keith
PS It's fun to joke and learn about some of this stuff.
THANK YOU AGAIN for all you do!

Bern · Feb 13, 2018

.
Cooler lines

Destroked 450 · Feb 13, 2018

I've got a 5000 SOS trans from a parted tractor, believe it's a 67-68 model, going to look and see if it has those bumps.

riveroadrat · Feb 13, 2018

That looks real professional, er slightly less than.

Zeke Boniface · Feb 13, 2018

My 5000 has those too. I was curious and Googled images of SOS tractors, there were a couple with that feature, I don't recall if they were model 5000 too.

Thanks for bringing this up, I figured I'd post the question some day, and it would be like asking about the cotter pin in the hole in the bottom of the clutch housing. Apparently it is a greater mystery.

Zeke B.

Zeke Boniface · Feb 13, 2018

Here's a slightly different version from a 3000.

Zeke B.

Sean in PA · Feb 13, 2018

Rare to see a 3000 with the dual speed plus ground speed PTO.

Trivial SOS trivia

Bern

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Larry NCKS

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Keith Williams

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kip78

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riveroadrat

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Bern

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Dean

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THE LIMEY

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Keith Williams

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Bern

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Destroked 450

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riveroadrat

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Zeke Boniface

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Zeke Boniface

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Sean in PA

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