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1983 Case 448 Tractor

case 448 ingersoll onan

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#1 jadefox OFFLINE  

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Posted November 08, 2012 - 11:12 AM

Hello, All.

Thanks in part to help from people on this site, my wife and I just purchased a 1983 CASE 448 with a plow, mowing deck and MuleDrive. This is, we understand, the beginning of a long love affair with these machines. We've had it less than 24 hours, and we already adore it. Of course it's not perfect, and I'm sure we'll have lots of questions as we get to know the tractor, its behavior and what options we have to restore/improve it. Any advice, suggestions, etc. are very welcome. Here are two pictures from day one:
IMAG0623.jpg
IMAG0629-1.jpg
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#2 jadefox OFFLINE  

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Posted November 08, 2012 - 11:18 AM

First question: The seller suggested I buy a new carb kit. The engine in our tractor is a B48M. Is this 1) the correct kit, and 2) what we should expect to pay? It seems in the ballpark, but I've never purchased parts for an Onan before.

http://www.ebay.com/...=item19d641d293

#3 Moosetales OFFLINE  

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Posted November 08, 2012 - 11:18 AM

Congrats! Welcome to the "club".
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#4 marlboro180 OFFLINE  

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Posted November 08, 2012 - 12:03 PM

Welcome to the club, glad you found your way to the " Inside " forum.

I presume the reason you might be looking for a carb kit is due to the engine speed hunting that was in the youtube video? I tried to get to that video through the ad listing from CL you put up in the other post, but it has been deleted. If you could find it, and post it up, that would be great.

I think if you posted the reason specifically for the desire for carb kit, it would be beneficial to your wallet :thumbs: :wave:
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#5 Moosetales OFFLINE  

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Posted November 08, 2012 - 12:14 PM

Jadefox,

I think what marlbor is so nicely hinting at is that onans are expensive (but good) beasts to work on. That part of being in the club:) I'm in tbe midst of a snowblower rebuild so I know a thing or two about going over budget.
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#6 jadefox OFFLINE  

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Posted November 08, 2012 - 12:17 PM

I presume the reason you might be looking for a carb kit is due to the engine speed hunting that was in the youtube video?

Exactly. :-)
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#7 braxx OFFLINE  

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Posted November 08, 2012 - 12:21 PM

FYI engine oil level is VERY important on Onan engines. Keep it top'd up.

Sent from my Sprint MoPho


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#8 marlboro180 OFFLINE  

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Posted November 08, 2012 - 12:24 PM

If you haven't already, take a look around the carb base, and make sure it is tight, and sealed well. Also, perhaps take a look at the intake manifold where it mates to the motor. If the motor is sucking air from anywhere but through the carb, funky things happen.

Try shooting some carb cleaner in the areas mentioned above with the engine running, and see if the engine speed increases. Quick easy to find out if you may just need some gasket work before spending good money on a carb kit.

Oh,, if no carb cleaner on hand, use WD-40 instead, but it makes the engine speed decrease...
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#9 jadefox OFFLINE  

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Posted November 08, 2012 - 12:27 PM

Here's the video:

#10 jadefox OFFLINE  

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Posted November 08, 2012 - 12:30 PM

FYI engine oil level is VERY important on Onan engines. Keep it top'd up.

Sent from my Sprint MoPho

Off to get some 15W40 shortly :-)

#11 jadefox OFFLINE  

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Posted November 08, 2012 - 12:32 PM

Any tips on where to pick up a 448 owners manual?

#12 mjodrey OFFLINE  

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Posted November 08, 2012 - 02:03 PM

That's a pretty nice looking Case.

Edited by mjodrey, November 08, 2012 - 05:28 PM.

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#13 jadefox OFFLINE  

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Posted November 08, 2012 - 02:39 PM

Any tips on where to pick up a 448 owners manual?


In case anyone else is looking, this appears to be the correct 448 Operator's Manual for our tractor (our PIN # is 14044748):

LOOKS LIKE I CAN'T POST A CLEAN LINK. IF YOU'RE LOOKING, PM ME. :-)

Edited by jadefox, November 08, 2012 - 02:40 PM.


#14 Cat385B ONLINE  

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Posted November 08, 2012 - 07:52 PM

Is the second picture of where you got it from, or where it lives now? If that's your barn/shed, that has tons of potential. More pics of that too, please!

If you're hunting for more manuals or parts, Brian at Salem Power in Michigan is fantastic to work with. He is an Ingersoll dealer.

Edited by Cat385B, November 08, 2012 - 07:53 PM.

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#15 jadefox OFFLINE  

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Posted November 08, 2012 - 08:59 PM

Is the second picture of where you got it from, or where it lives now? If that's your barn/shed, that has tons of potential. More pics of that too, please!

If you're hunting for more manuals or parts, Brian at Salem Power in Michigan is fantastic to work with. He is an Ingersoll dealer.


That is our new barn! Honestly, the barn almost sold the house. More pics to come. Thanks for the heads up on Brian.





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