Tranny frustrations

[Maxwell-8 4,277]

I have to become like @stevasaurus

I have 3 trannys the two from bizon, One i know, had a loose axle, hub is thight on her, he couldn't get it off, an i stripped a bolt, bent my puller with it only a hammer could get her loose in the vise.

But the other 2  after replacing the axle seal, somehow the bearing just disapeard. You wouldn't know it because the axle is sits in pretty strait.

Seems like am gone have to crack open 3 transmissions, better get to work.

 

[ebinmaine 67,621]

Get yourself a good work surface that will hold the transmission. I put a hole in my workbench to do so.

 

Get a very sharp wood chisel about three quarters or one inch wide.

Use that to tap into the case gasket all the way around and after two or three revolutions it will come apart nice and easy.

 

These transmissions are really no problem at all to work on if you're prepared for it. I've had at least a half a dozen apart. Maybe more.

 

 

[71_Bronco 1,072]

I've only taken apart 1 so far, but have another under my bench that I need to open at some point. Axles have messed up key-ways on them.

 

I watched lots of videos (most from Stevasaurus) and I was able to do it just fine.

 

I got some replacement parts from Lowel at Wheel Horse Parts & More, and Lincoln at A-Z Tractors.

 

EDIT: If you run into any stumbling blocks, there is plenty of people on here who will be able to help.

Edited January 28, 2021 by 71_Bronco

[Pullstart 62,912]

Hey Max!  You can do it!

 

One thing I learned, is install the seals after you assemble the transmission.  Put some electric tape over the key way slot to prevent tearing the seal.  Slide it onto the axle with some grease to help it along, then tap it into the case.  A length of PVC pipe appropriately sized slid over the axle will help with the seal installation too.

[Maxwell-8 4,277]

thanks for the tips everyone! 

 

Any idea, how those bearings would have dissapeard? Maybe when someone replaced the seals?

@pullstart, i do like to install the seals when everything is nicely together. Find myself a nice pipe with inner diametre of a hair over 1", makes installing those bearings evenly a breeze.

Edited January 28, 2021 by Maxwell-8

[WHX?? 48,828]

Hey Max, the bearings perhaps slid inwards towards the 1533 bearings & only way to know is split the cases. 

When installing any of the caged needle bearings they should always be pressed in. Hammering them in can distort the cages leading to premature failure. 
I invested in some cheap tools to make things go easier. 

Bearing Puller

 

Seal installer

Edited January 28, 2021 by WHX24

[oliver2-44 9,760]

22 minutes ago, WHX24 said:

Hey Max, the bearings perhaps slid inwards towards the 1533 bearings & only way to know is split the cases. 

When installing any of the caged needle bearings they should always be pressed in. Hammering them in can distort the cages leading to premature failure. 
I invested in some cheap tools to make things go easier. 

Bearing Puller

 

Seal installer

Good info right here!  

[stevasaurus 22,764]

Max, take a good look after you open the trans, the race may still be in there.  No telling where the bearings are.  In the second picture, looks like the "C" clip came off...that will be inside the differential.  Get new "C" clips.  

[Maxwell-8 4,277]

6 minutes ago, stevasaurus said:

Max, take a good look after you open the trans, the race may still be it there.  No telling where the bearings are.  In the second picture, looks like the "C" clip came of...that will be inside the differential.  Get new "C" clips.  

i can see the clip in the trans, i seems okey. DO i really have to buy a new one then? cause it is quite hard to find here  in Europe, Got to order  them at Skipper

 

I stripped one of the bolts on my hub puller (hub is fine), took me half the day to find  3 new, longer bolts. Here, everybody has metric, but no standard size.

Edited January 28, 2021 by Maxwell-8

[stevasaurus 22,764]

If the clip looks OK, it should be OK, but replace it if it is bent.  The sharp edge side of the clip faces the center of the transmission.

[Maxwell-8 4,277]

So i started on all the tranny work at about 8pm, local time here. 

 

I started with the 314-8,1985,  pre toro so 1, 1/8inch axles and 8 pinion diff  

Opening went pretty smooth, I used some wood like @ebinmaine mentioned and I used some plastic prybars, (lent from my dad for removing car trim, ssttt don't tell him )

The inside looks pretty good for a pulley swapped one. Typical light damage at the end of the different gears, from shifting while moving. Could you guys, take a look, say how it looks, need some expert judges.

All bearings are nice too, it also seems that the sifter selector has been welded at it's weak point. but were do i have to look for as well?

 

I drained the tranny oil, looked pretty good, dark but clean. But what I found in the bottom, big sludge, i guess taking a part a WH trans, even if nothing is wrong is a good thing, just for a cleaning up  after 36 years.

 

Ps: eb, if i drilled a hole in dad's Iron workbench, i think the garage is suddenly to small form my horses and me.  But the vise did good to (no pressure just sitting)

[Maxwell-8 4,277]

What do i have to inspect before reassembly?

[ebinmaine 67,621]

Every bearing and every bearing contact surface for sure.

Where you have a worn gear double check to make sure there aren't any burrs. 

 

Keep all four of the seals out until final assembly and put them in from the outside. 

 

 

Others will chime in with more....

[Maxwell-8 4,277]

2 hours ago, ebinmaine said:

any burrs.

Thank you sir for your help.

I think i have a bit on one. what do i do then?

Edited January 29, 2021 by Maxwell-8

[ebinmaine 67,621]

3 minutes ago, Maxwell-8 said:

Thank you sir for your help.

I think i have a bit on one. what do i do then?

I'd have to defer to the More Experienced on that one..

 

@stevasaurus

@pfrederi

@953 nut

@Racinbob

[stevasaurus 22,764]

File any burrs, either with a good file or a 4" grinder.  Touch up with emery cloth if needed.  Check fit of hubs, input pulley and brake drum while apart.  Just easier to fix.  Your gears look great, if the bearings are good, just clean out the sludge.  Nice job Max!!!  

[Maxwell-8 4,277]

So the 314 trans is done, all new seals, the snap ring didn't break when the axle got hammered out.

 

But the next problem is on the 312, no bearings, pics tomorrow, but my questions is: how do the outer axle bearings come out thru the inside or the outside? thanks. Can't really see as there is not much left of the bearings

[ebinmaine 67,621]

Just now, Maxwell-8 said:

So the 314 trans is done, all new seals, the snap ring didn't break when the axle got hammered out.

 

But the next problem is on the 312, no bearings, pics tomorrow, but my questions is: how do the outer axle bearings come out thru the inside or the outside? thanks. Can't really see as there is not much left of the bearings

You disassemble the case and push them from the outside in

 

It's best to use a bearing installer if you can to put them back in place because the tapping of a hammer can damage the sides.

[Maxwell-8 4,277]

1 minute ago, ebinmaine said:

You disassemble the case and push them from the outside in

 

It's best to use a bearing installer if you can to put them back in place because the tapping of a hammer can damage the sides.

thanks, found an old bearing pullerset and the inner bearings came out with ease.

[pfrederi 17,741]

Are you installing or removing the needle bearings.  If you are removing them you drive from the inside pushing them out. 

Edited February 16, 2021 by pfrederi

[Maxwell-8 4,277]

This is what's left of the needles bearings, when they broke, they took at the ball bearings with them.

[stevasaurus 22,764]

With that picture, you will want to take apart the differential...might have a needle or 2 inside.  

 

Outer axle bearings tap out from the inside.  New ones tap in from the outside.

[Maxwell-8 4,277]

Assembly is tomorrow, new inner and outer axle bearings. (the Japanese and USA made).  the diff is already apart, because the axle will need to be smooth out. Apart from that everything looks great!. 

[Maxwell-8 4,277]

they are coming out!

[Maxwell-8 4,277]

so i got the final bearing out and installed some fresh new bearings. inspected everything and cleaned up the rust that these transmissions all have around the dipstick area.