8050 torque limiter issue or tranny?

I've got a 8050 2wd, power shift. Just had it split about 8 hours ago.

I put in a new torque limiter, bellview washer, had the flywheel machined, and checked size on all the spacer. Plus I did the engine plate gaskets and the transmission seal. Changed all fluids and filters, cleaned the screen as well.

I followed the instructions in the service manual for all torque specs and break in. I had no issues disking for the first few hours but now with the digger on it is acting up. Much like it's slipping, the engine will idle up a bit while my forward momentum slows, takes a few seconds than grabs again.

I tried slamming on the brakes to check if I had hydraulic when I stopped but I kill it every time I hit the brakes and I have power steering the whole time. I had no transmission issues pre torque limiter job. I've checked the transmitter fluid level and it's a bit over full of anything.

Any ideas?

It also acts this way when I shift to 5 or 6 high on the road. Not sure what to look at next

Edited by 4oranges - 05 May 2021 at 5:43pm

Steve, when I say followed the instructions that is what I mean. I ran it wide open in high 3 and held the brakes till she died. Did it 8 times and never got it to skip.

When it has happened in the field I followed the same procedure the first 10 times it happened.
Once it kept happening I used the brakes to try prove it was the T/L but I always have hydraulic power and can easily kill the tractor, wide open throttle when I try to prove it's the limiter

Park the tractor overnight with the nose downhill a bit and see if there is ANY oil that drips out of the bottom of the bellhousing.

Did you reseal the PD while motor was out? If not that is a good time to do it. Are you sure you put Bellville washer on the right direction?         MACK

Is the trans lube light above 1800 workng if it is a PS ?  If so do the clutch pac test of lower the rpm til the light comes on - then rev up to just put it out - then shift r- 1-6 - light should come on then out same time and go out each shift.  Lube light on in any certain gear indicates issue.  

This probably wont help you, but I did one about 8 or 9 years ago in an 8030.  It would sometimes slip after the first year, but not always when I shifted into high PD.  It got so bad last year it would slip when I would drop to low PD when pulling hard, so I put a new TL in it last month.  This one seated up right away, the other one took 6 or 7 slips before it stalled the engine out, I think the first one was never right...but that is justmy gut feeling.

I wanted to say your wrong mack because the book says it's fine to reuse the plate if it's true. I had it checked and reused it. After a bunch of messing around with checking pressures and everything looking ok I took it out and started messing with it in the field again and then I got the TL to slip. No idea why I couldn't get it to slip earlier.

I assume once it's slipping I need to split it and do the whole works over again with all 3 new pieces correct?

I have re used the plate only a few times.  All except once those TL failed prematurely (I feel), and the one that did not fail, was one I had machined and I also machined down the spacer pieces to give me the same dimensions as all original assembly would have.  

service manuals are written in a way they want you to follow in the event of a warranty repair. Of course, they would not want to pay for a part that is a year old and within spec. Now 40 years later, things are a lot different.