Case 311b split

[ESFdad]

Hi guys! Any tips for getting a tractor to split that doesn't want to?
It was my great grandfather's and down through the years landed in my hands.
A mouse decided to make it's home in the bell housing, and and a enormous amount of dirt and nut shells in the housing and I suspect, moisture and urine rusted the splines together.
I tried so far using a come along and wedges and pry bars, 5 hours later I got it to separate about 3 inches.
Thanks in advance

This post was edited by ESFdad on 07/14/2023 at 06:16 pm.

 

[Tgrasher]

Try spraying the splines with penetrant or
diesel fuel and work it back and forth.
With caution, you can pull the housing and
motor back towards each other by using
longer bolts.

 

[used red MN]

Hello ESF welcome to YT! Should be able to get to the pressure plate bolts, I
believe I see one right below the tip of the pry, below the round deal on the pressure plate I call a spring cup. Take all those out, may be a little tough if some are rusted from the mouse nest. Once apart the shaft can be buffed off to
help release the clutch plate to be removed.

This post was edited by used red MN on 07/14/2023 at 10:47 pm.

 

[ESFdad]

Thanks for the reply, I thought this too but after looking at the shop manual, I think it's the oild seal flange that's visible.
The pressure plate has yet to make an appearance because it's on the opposite side of the flywheel still in the housing

This post was edited by ESFdad on 07/15/2023 at 07:21 am.

 

[ESFdad]

This post was edited by ESFdad on 07/15/2023 at 07:33 am.

 

[used red MN]

I think you are confused about how it is assembled.
What you are showing is the flywheel connection to
the crankshaft. What I am suggesting will keep the flywheel
connected to the engine. The pressure plate is what
pinches the clutch disc with the lining on it between it
and the flywheel. If this link will post what I am
suggesting is to remove the 6 bolts around the outside
of the pressure plate. This will allow the tractor to split.
Well the link will not post as I figured because they are a competitor. Search Case 311 clutch.. then look at the one offered by Steiner, you will then see what you are looking at.

 

[used red MN]

Sorry, after looking again I think you are correct. Is there a hole in the bottom to get to the pressure plate bolts? Does the starter come in from the back? If so maybe remove that and that may allow access to the bolts.

 

[Joe (Wa)]

What you see in the gap is the bracket & hub on the rear side of the pressure plate, removing the 6 bolts you can see in the gap won't get you anything as the pressure plate hub splines are already off the hydraulic pump drive shaft splines. The main drive shaft splines are still engaged in the friction plate and the end of the shaft in the pilot bushing. That is all that can be rusted.

Did you remove the half moon cover bolted to the bell housing at the bottom rear of the block in front of the flywheel?

 

[Joe (Wa)]

This is the part of the pressure plate bracket with hub that you can see at this point. With this much gap the splines in the hub are already off the hydraulic pump drive shaft. Unless there is a ball of rust on the front of the pressure plate and forward to the flywheel the only thing I can think of that can hold it now is the friction disc splines to main drive shaft splines, the crank pilot bushing and/ or the dirt cover at the rear bottom of the block.

This post was edited by Joe (Wa) on 07/15/2023 at 10:19 am.

 

[ESFdad]

(quoted from post at 13:40:54 07/15/23) What you see in the gap is the bracket & hub on the rear side of the pressure plate, removing the 6 bolts you can see in the gap won't get you anything as the pressure plate hub splines are already off the hydraulic pump drive shaft splines. The main drive shaft splines are still engaged in the friction plate and the end of the shaft in the pilot bushing. That is all that can be rusted.

Did you remove the half moon cover bolted to the bell housing at the bottom rear of the block in front of the flywheel?

<img src=https://www.yesterdaystractors.com/cvphotos/cvphoto158677.jpg>

<img src=https://www.yesterdaystractors.com/cvphotos/cvphoto158678.jpg>

Yes sir I did remove the dust cover at the bottom

 

[ESFdad]

I don't think I've even gotten to the pressure plate yet, all I can see is the back of the flywheel that faces the engine block


This post was edited by ESFdad on 07/15/2023 at 10:40 am.

 

[Joe (Wa)]

Just in case I am wrong and you have a wider gap than I see, the pressure plate bracket has 6 bolts to the flywheel.

 

[ESFdad]

(quoted from post at 14:41:07 07/15/23) Just in case I am wrong and you have a wider gap than I see, the pressure plate bracket has 6 bolts to the flywheel.
<img src=https://www.yesterdaystractors.com/cvphotos/cvphoto158680.jpg>

Your correct I just haven't gotten that far yet to reach them, the teeth on the flywheel are yet to come out

 

[Joe (Wa)]

At least, the presurre plate hub splines are off the the end of the hydraulic pump drive shaft splines.

The only thing I can think of is that friction plates often rust to the pressure plate and the flywheel. The rust may have extended down to the friction plate hub and drive shaft splines. The crank pilot bushing is non-ferrous so unlikely the problem.

Tgrasher probably has the best answer with penetrant and time and some very light force.

This post was edited by Joe (Wa) on 07/15/2023 at 11:31 am.

 

[Joe (Wa)]

Your correct I just haven't gotten that far yet to reach them, the teeth on the flywheel are yet to come out[/quote]

In rereading your initial comment noted that you indicate the gap is about 3 inch, if so, you are off the splines and out of the pilot bushing. Something else is inferring with the split.

Can you post a pic of the gap on the other side similar to this side and wider pics of each side of the tractor?

This post was edited by Joe (Wa) on 07/17/2023 at 12:00 pm.

 

[ESFdad]

(quoted from post at 15:35:04 07/17/23) Your correct I just haven't gotten that far yet to reach them, the teeth on the flywheel are yet to come out

In rereading your initial comment noted that you indicate the gap is about 3 inch, if so, you are off the splines and out of the pilot bushing. Something else is inferring with the split.

Can you post a pic of the gap on the other side similar to this side and wider pics of each side of the tractor?

[/quote]

I did say 3 inches but it was kind of a guess, I went and took more pictures and measured it's about a inch and half gap. The two bolts are not threaded in, they're sitting in clearenced holes I keep trying to upload pictures but for whatever reason they wont upload



This post was edited by ESFdad on 07/17/2023 at 03:21 pm.

 

[Joe (Wa)]

The pressure plate hub splines should still be off the hyd pump drive shaft but friction discs have a flexible center, some more than others, so with 1 to 1-1/2 gap fully rusted up friction disc to the flywheel/pressure plate & hub splines could still be frozen up on the main drive shaft.

Try to get a close flash pic in that gap.

Why are you replacing the clutch? Any symptoms might help figure this out.

Did the clutch foot pedal feel like it was depressing the pressure plate levers when you push down on it?

When you finally get it split take some pics of the pressure plate still on the engine and looking aft at the throw out bearing. I can't find any of my pressure plate pics, probably gone with computer crash and replacement. Still have many pics the other way. Your aft shots will look like this. I can't think of anything there that is a problem with splitting.

There is a newer rule that sometimes keeps new posters from up loading pics, it may have caught up with you even though you have been able to post a couple. I think you need 5 individual posts or something like that. This is a link to YT's test site forum. Go there and try 5 or 6 posts, short text & one pic, until you get one to stick. If that doesn't work, you may not be allowing enough time for the pic to fully up load. Note above the top pic you are up loading there is a status that will read Begin Uploads while uploading and Total Files Uploaded: # when pic is fully loaded. Don't start another pic up load until the previous pic is fully loaded.
https://www.yesterdaystractors.com/dbtest/wwwboard1.html

 

[ESFdad]

The two bolts not threaded in those are just clearance holes

I'm splitting it because when my dad had the tractor he stopped using the foot clutch and only used the hand clutch because it seemed like the throw out bearing was seized is what I was told, so I'm trying to get the foot clutch operational again and there's no tension on the pedal, it's completely dead


This post was edited by ESFdad on 07/18/2023 at 07:51 am.

 

[ESFdad]

[/img]

Thanks for the posting top, I just wasn't waiting for them to be totally uploaded

This post was edited by ESFdad on 07/18/2023 at 08:10 am.

 

[ESFdad]

Well I ended up buying 5/8's threaded rod and some nuts and made jack screws on both sides to seperate the two halves and it worked

I/8th at a time

It finally came apart a couple hours later

So obviously ill be in the market for the pressure plate, clutch disc, throw out bearing and the yoke for the throw out bearing