Lil smoker had a failure

Oak · #1 04-25-2022, 10:46 PM

Had some fun on the 882 plowing one of the gardens on Sunday.
DJI_0974 - Copy.jpg
I plowed about half of it and figured I'd go hook up the 1572 and finish. I raised the plow and headed towards the shop and all of a sudden I hear a horrible noise that scared the crap out of me from under the tunnel cover.

I do the walk of shame up to the shop, get some tools, a tow strap and the 1572. I pulled the tunnel cover off and look what I find.

I picked this 882 up about 11 years ago and the rear input shaft was wollered out so bad that a roll pin wouldn't stay in so I put in a grade 5 bolt. I also made a new driveshaft, replaced the rear coupler with new, replaced all rag joints and replaced the ball bushing on the front coupler. In the 11 years that I have owned it I put less than 100 hours on it because it is mainly used for plowing.

The rear coupler broke both tabs where the bolts go, destroyed one hydro line and oil filter. I put one of my cat 0 pins in the hydro pump and tried to turn it but it feels like it is locked up. I need to recheck that again with a longer screwdriver or something. The rag joints look fine, the grade 5 bolt was nowhere to be found but I did find the plastic fan in about 6 pieces.

What would cause the rear coupler to fail like that?

Sam Mac · #2 04-26-2022, 06:07 AM

Todd if the pump took a dump, I have a complete rear and pump out of an 1862 so you could convert that to the CV drive line.

Oak · #3 04-26-2022, 07:36 AM

Thanks Sam, I'll try and get a look at it soon and let you know.

1711Cub · #4 04-26-2022, 07:44 AM

Man, that's some carnage. That failure appears to be the result of the pump locking up. Glad you are ok.

finsruskw · #5 04-26-2022, 08:08 AM

Ah yes, the old grade 5 bolt trick!
Better to shear a spirol pin than what happened here.
I have to replace the pin in my 882 about once a year.
The diesels really hammer the drivelines in these Cubs.

Billy-O · #6 04-26-2022, 08:55 AM

Ouch!

Oak · #7 04-26-2022, 10:40 AM

Quote:

Originally Posted by finsruskw

Ah yes, the old grade 5 bolt trick!
Better to shear a spirol pin than what happened here.
I have to replace the pin in my 882 about once a year.
The diesels really hammer the drivelines in these Cubs.

And the grade 5 has broke before too. Probably because the hole in the pump was worn out. I would have thought that the bolt would have snapped before it broke the coupler but I guess not.

I hammer this thing pretty hard plowing but I still have never seen a pump lock up yet(if that is what happened).

West Valley G · #8 04-26-2022, 10:48 AM

I can just imagine how that would make the old heart beat 3 times as
fast instantly. The garden looks nice however.

Ken

1711Cub · #9 04-26-2022, 02:22 PM

Quote:

Originally Posted by finsruskw

Ah yes, the old grade 5 bolt trick!
Better to shear a spirol pin than what happened here.
I have to replace the pin in my 882 about once a year.
The diesels really hammer the drivelines in these Cubs.

Mine had bolts in it when I purchased it. It now has the correct spirols. I will be upgrading to a CV shaft to make it more reliable and smoother.

Oak · #10 04-26-2022, 10:44 PM

Something is busted in the pump. It is hard to turn with a screwdriver stuck through the input shaft. Well, I don't run much HyTran in my stuff but I'm thinking that is what I used when I did this one years ago.......Don't give me that "You didn't use the proper oil"

1711, CV joints are probably better but looks at the rag joints on this one. They are 10 years old with about 100 hours on them. I bet they would be good for another 10 years or 100 hours. I think the rubber rags cushion the hammering of the engine on the driveline too. Maybe not but it sounds good.

West Valley, yes it did scare me. That busted shaft was hammering the tunnel cover and making one hell of a racket. I was like

what the hell is that!

David, I'm still trying to figure out what happened. If the pump locked up, I would think the bolt would have sheared causing the pump not to spin. I'm thinking that the 2 spirol pins on the driveshaft are larger and stronger than the bolt I used so they didn't break.
I knew when I rebuilt this 10 years ago that the input shaft was toast because of the way the hole was wallered out but i figured I didn't have any other options. Did I?

I still wanna try that 3k series driveshaft in a diesel......I know, a few have tried and they failed but I think Matt G. is running that setup in one of his. Oh well, I have a few projects ahead of this one so hopefully I can get to it sometime soon.