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  #1  
Old 05-30-2013, 10:49 AM
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rustythe4x4 rustythe4x4 is offline
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Default Case 446 repower

I posted this on another forum, but wanted to share on this forum as well.

I picked up a 446 with a blown up front clutch and the tiller for a good price, but the engine was hurting. I used it for the season, limping it along, but this spring something had to be done.
I had a 15 horse "princess auto" engine sitting in the garage for another project, but the engine wasnt right for the other project, so the repower was born.
My son and I pulled the tins and the old engine in an evening. A little elbow grease cleaned things up enough to make it nicer to work around, then the following saturday I put it back together.
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Old 05-30-2013, 10:54 AM
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With the teardown complete, I had to re-fab the pump bracket. I didnt want to monkey around trying to pull the love joy from the pump, so it got moded to fit.
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Living the country life


Learning boils down to "Repetition or the avoidance of pain", some people learn by doing, some by watching and some have to pee on the electric fence. - Norm W.

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Old 05-30-2013, 11:00 AM
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Drilled new mounting holes and expanded 2 existing holes to mount the engine. Fits like it was meant to be there!
I only had to cut the heat shield above the rad cradle (from behind the old muffler) and grind a small corner to clear the muffler completely.
I will remote the key to the dash, and modify the air cleaner and muffler so I can fit the hood back on. Best part is the tractor is useable again, since it runs like brand new! the 15 horse single doesnt even grunt under load of tilling.
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Living the country life


Learning boils down to "Repetition or the avoidance of pain", some people learn by doing, some by watching and some have to pee on the electric fence. - Norm W.

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-Ironman quoting the Bible
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Old 05-30-2013, 11:39 AM
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That appears to be the same Predator engine I used on Ol' Yaller last year.
The air filter box and muffler were too bulky for my use.

The Case sure looks like a good & stout little tractor.
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  #5  
Old 05-30-2013, 11:46 AM
BillR BillR is offline
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Nice job on the refit. Looks like a handy machine.

Bill
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Old 05-30-2013, 12:00 PM
BillR BillR is offline
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Double post, my bad.

Bill
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  #7  
Old 05-30-2013, 01:32 PM
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It is a handy machine. Have to build a ballast box for the front, for now we have a piece of rail-tie (about 80lbs) zip tied to the front so it doesnt wheelie.

Cutter, how did you modify your exhaust and air cleaner? I was thinking of using a piece of 2" square tubing to make a manifold off the manifold, then boxing the ends and re-installing the stock muffler back on where it is out of the way, beside the hood. Or... maybe just putting on a mini stack with a rain cap.


Nevermind - I did a search and saw your solutions. I like the intake, but sadly in this climate, I cant use it.
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Living the country life


Learning boils down to "Repetition or the avoidance of pain", some people learn by doing, some by watching and some have to pee on the electric fence. - Norm W.

Mathew 10:36
And a man's foes shall be they of his own household
-Ironman quoting the Bible

Last edited by rustythe4x4; 05-30-2013 at 01:54 PM.
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  #8  
Old 05-30-2013, 06:26 PM
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How do those powerfist engine last?
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Old 05-30-2013, 07:56 PM
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We will find out how long they last!

A friend has had one in service on his vac truck with no issues, going on about 3000 hours now...

I have one on a 2" pump, same thing, no issues after about 3 dozen tanks of fuel.
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Living the country life


Learning boils down to "Repetition or the avoidance of pain", some people learn by doing, some by watching and some have to pee on the electric fence. - Norm W.

Mathew 10:36
And a man's foes shall be they of his own household
-Ironman quoting the Bible
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  #10  
Old 05-30-2013, 07:58 PM
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I also want to thank everyone on SFT. I got a lot of good jobs so far, no condemning me for doing a "bastard conversion" or "removing a perfectly good engine"

If it was perfectly good, I would not have replaced it. Simple economics. The Onan rebuild would have far exceeded the cost of the replacement engine, that I already had, for a tractor I didnt even pay what a rebuild kit would cost!

It just has to till - thats it!

so, thumb to the nose to TBN...
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Living the country life


Learning boils down to "Repetition or the avoidance of pain", some people learn by doing, some by watching and some have to pee on the electric fence. - Norm W.

Mathew 10:36
And a man's foes shall be they of his own household
-Ironman quoting the Bible
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