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Tore into the 4020

S

SVcummins

Well-known Member
Today opened up all the holes I could to try and see with a cheap boroscope but couldn?t see anything so I took the cover off the top of the transmission everything looks good that I can see the boroscope went dead so we?ll charge it up again and have another look . I?m just having a hard time believing that a piece of shrapnel could still be in there from over 20 years ago but maybe I?m lucky this time
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Could it have been there from the factory? Some assembler could easily have messed up a bearing and left the piece in there. When I first got my H and changed oil a couple of steel balls dropped out and I never could figure out where they could have come from. Later years I tore it down and found more along with a couple of broken piston rings and a governor weight pin...with the cotters on both ends. Ya never know, eh?
 
I had a 4230 tractor that had never been apart. Reverse went out and I had it split. Found a piece of sheet metal that had been in the since new. It was rolled up in a ball and had wedge the reverse idler gear so it couldn't turn. Took the gear and pinion shaft out. There is no sheet metal in the transmission housing so it was put in there from the factory.
 
Think he's about ready to haul it to the scrap yard and use the money he gets for a down payment on a new Fiat.(LOL)He's had more trouble with that 4020 this Winter than I've had with my
2 Fiat/Oliver 1365 tractors in the last 20 years.
 
Your trans has been apart before because you have the updated shifter assembly. It could still be from a previous repair job but you will feel better once you have gone thru it. Two years ago we got a noise in my 4020 and we decided to empty the trans case and rebuild it. We replaced every bearing in the trans with new old stock USA bearings. Tom
 
When I was young auto assemblers putting things in the door to rattle was a common discussion item....Coke bottle comes to mind as one tale. Remember a video of a Ford plant in California where they were stacking finished Pintos on a vertical rack. As the picture showed, a worker apparently got bored and drove one off the rack, several units up and obviously totaled it.
 
Bought a new Chevy C65 milk truck in 73. Two speed didn't work. They took it apart and there was three nuts dropped down in the switch.
 

There's several bearings you are simply NOT going to be able to examine thoroughly without a 100% teardown of the transmission and differential carrier, pretty much down to the bare case.

The RH carrier bearing would be ONE to suspect. (Have to remove the final drive/axle assembly to get to that one.)

Was it making any unusual noises, such as a "cyclic rumble"?

With a bearing cage destroyed, the balls or rollers don't stay evenly spaced and the "center-to-center" distances between the shaft changes a bit as the shafts rotate, typically making some sort of gear noise, and eventually damage.

Did you find any other bearing pieces, or a significant amount of filings in the "sump", or in the filter?
 
There was no shavings or any other shrapnel that came out with the bearing cage well what I think is a part of a bearing cage . Hopefully I can see a little more with the boroscope now that the top is open. I am thinking about putting oil back in it and run it some I don?t recall any strange noises on the way to car wash the other day or fall plowing
 
I bet either of those fiat pos have never seen 20 hours at maximum load in their life either? But I guess for one a fiat max draft would be pulling a ten foot spike tooth harrow over a pasture or hay field
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It?s been the big tractor on our place all it?s life . I don?t think one major repair every 30 years Is to bad . Kind of like guy who brags about there have ton Chevy or Toyota pickup that went 250,000 miles and never had any major work done but they heaviest work it?s ever done was haul the guys overweight mother in law to Walmart one a week for groceries .
 
If the oil does not have any metal in it I would guess it's from an old repair. The ones I have opened up with bearing failed have loads of metal flakes in the case. Pull the suction screen out and run a magnet thru there.
 
CenTex This transmission was completely overhauled in 1994 it was ran out of oil and the local John Deere dealer went through the transmission it was 8000$ bill then parts and labor
 
Tom I broke a shift collar in 1998 and it was tore apart and a bunch of parts replaced when that happened
 
In sand I bet you can ? I pull either a 3x16 rollover or a 5x16 semi mount I thought I had a fourth bottom found for the 642 but I didn?t . I pull a 3x14 John Deere with the 3020 the ih plow 3x14 has a bent trip beam so right now it is a 2 bottom
 
What’s wrong it problem with it , I just redid my dads 4020 and redid the topshaft best tractor that I have ever worked on everything is simple as far as a synchro range goes, powershift I have heard they are a different animal!
 
Left wheel locked up on my super m around 97-98. Found a bull gear tooth stuck to a bull gear. But none missing on the bull gears. Last time it was open was the 70s.
 
It will pull 3 anywhere. Just bought a 6 bottom for my 1030 which is right at 100hp. My ground is about as hard to plow as it gets. My 830 will pull 4-16s anywhere and is rated about 65hp. But you need to remember that case uses large work horses to test power, not deer, so they pull more per hp.
 
(quoted from post at 08:52:49 04/08/19) Your trans has been apart before because you have the updated shifter assembly. It could still be from a previous repair job but you will feel better once you have gone thru it. Two years ago we got a noise in my 4020 and we decided to empty the trans case and rebuild it. We replaced every bearing in the trans with new old stock USA bearings. Tom
Click to expand...


When I worked at Molsons, one of my tasks was to calibrate and function check the EBI, empty bottle inspector . The EBI would discard the wrong brand, shape or style of bottle . Some of you already know where this is going .
There would be several hundred off brand bottles with root beer, sarsaparilla brand names and etc molded into the glass bottles. Rolling down the filler line and then to be packed .
There must have been a lot of people while placing their beer in the fridge or while popping the Molson beer cap off wondering what was going on.
 
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