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Stuck PTO for 8n

D

DonTheNewby

Member
Yes its stuck... old posts talk about cutting it out. But is there another way?

Currently the rear housing is drained and separated from the center housing (assume I have those terms correct). Both side panels have been removed so have plenty of access (the whole back of the machine is a big rusty mess and all gaskets are leaking including the PTO.

So I might as well go all in and update the PTO while I'm at it.

I've got it about an 1 1/4 out the back and now it won't go in and it won't come out.

Is there something I can remove so it comes out or do I still need to cut it out?
 
Sounds like you'd be money and time ahead to pick up another tractor if it's that rusty.....

My guess tho is that you need to get a bigger hammer and knock it back in....

Don't try to drive it all the way out.... knock it back and forth w plenty of lube trying to move 1/4" further out each time

This post was edited by Smokeonthewater on 06/20/2021 at 03:05 pm.
 
(quoted from post at 15:04:31 06/20/21) Sounds like you'd be money and time ahead to pick up another tractor if it's that rusty.....

My guess tho is that you need to get a bigger hammer and knock it back in....

Don't try to drive it all the way out.... knock it back and forth w plenty of lube trying to move 1/4" further out each time

This post was edited by Smokeonthewater on 06/20/2021 at 03:05 pm.
Click to expand...

I can give that a shot. I was exaggerating a little on rust, most of the rear is rusted from lack of paint but not bad. Just the top plate under the seat.

But thank you!!
 
I normally don't jump in and give advice unless I have had the same issue and fixed it myself. I have pulled several PTO shafts and replaced bearings and seals and have also swapped one out for the newer 3/8 shaft but, all mine have come out easy and gone in the same. What I have read here is the PTO shaft is prone to get twisted at the splines on the pump end when a PTO driven attachment hits something hard like a rock stopping it abruptly. The bad news is the suggested remedy is to cut the shaft before and after the pump and then drop the pump out the bottom. Like I said I never had that problem just read about it here, so hopefully someone with more knowledge will jump in.
 
(quoted from post at 05:19:05 06/21/21) I normally don't jump in and give advice unless I have had the same issue and fixed it myself. I have pulled several PTO shafts and replaced bearings and seals and have also swapped one out for the newer 3/8 shaft but, all mine have come out easy and gone in the same. What I have read here is the PTO shaft is prone to get twisted at the splines on the pump end when a PTO driven attachment hits something hard like a rock stopping it abruptly. The bad news is the suggested remedy is to cut the shaft before and after the pump and then drop the pump out the bottom. Like I said I never had that problem just read about it here, so hopefully someone with more knowledge will jump in.
Click to expand...

I think I read the same past post... was hoping to avoid cutting it but fear you are correct. I'll try the previous suggestion to work it back and forth while lubing it up... if that doesn't work... bringing out the reciprocal.
 
Just did a little research on it.... apparantly it's also possible for the front to be mushroomed.... if it were me, and I couldn't tap it out, I'd split the tractor.... not nearly as bad of a job as it sounds like....

Then grind down the mushroom, or torch off the twist....
 
I had draining the oil and split the tractor over the weekend, so I could go ahead and sand it down, paint it and replace the gaskets.

Because the rear exterior was pretty rusted, I figured it'd be easier to clean it up really good and... if I had to cut the PTO out, the whole thing would be open.

In the end, I decided to get a little aggressive...

I took a smallish mallet and worked the PTO back and forth several times and finally went at it - being as careful as I could.

With some work and second mallet so I could keep the head flat and not flatten the end of the PTO... it finally popped out the back.

I really didn't want to cut it and make a big mess.

My biggest fear always, is breaking something that I can't fix or find a replacement part. This is all completely new to me.

Thanks for all the help!!!
 
I had a similar issue this past Sunday. Here's a picture of how I got it out yesterday evening.

(If the picture doesn't work, I took four 3/8"x 6" carriage bolts, stuck them through the flange, and put two nuts on the end toward the housing. Left one nut at the end of the bolt against the housing, and backed the other nut out against the flange. Then I just went around in a circle, backing each nut out a turn or so at a time until it just dropped out. Very low impact, didn't have to crank on the nuts that hard.)
 
https://photos.yesterdaystractors.com/gallery/pieces/c51500.jpg

This post was edited by walt83SC on 06/30/2021 at 05:18 am.
 
(quoted from post at 05:17:34 06/30/21) https://photos.yesterdaystractors.com/gallery/pieces/c51500.jpg

This post was edited by walt83SC on 06/30/2021 at 05:18 am.
Click to expand...

Certainly a lot more thoughtful then my hammer!
 
What a great idea from Walt83SC! I've never encountered a stuck PTO but if I do, I hope I remember that one.
 
(quoted from post at 09:40:50 06/30/21) What a great idea from Walt83SC! I've never encountered a stuck PTO but if I do, I hope I remember that one.
Click to expand...

AGREED Jim!

No matter how smart or clever I think I am, there are always many, many more that are way smarter and/or far more clever.
 
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