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Go Back   Only Cub Cadets > Cub Cadets > CCC/MTD Cub Cadet built Tractors (GT)

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  #1  
Old 05-04-2015, 11:06 PM
neilh419 neilh419 is offline
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Default Another bout with the 1641

Alright folks,

I plowed all winter with the 1641, and for the most part she ran pretty well. Wanted to hunt up and down a little while at lower power. I stripped most of the deck and prepped and painted it. New deck belt. Removed, and cleaned that pesky solenoid in the carburetor. Took the steering apart, tightened it all up(got it a little too tight, may need to readjust). I put her all back together tonight, and take a few laps. Runs ok. Fire the PTO, and she smokes. I let it run for a while, to see if it's just burning stuff off. I mowed for a little while, but kept losing power, and getting smoke. Engine would hunt up and down while PTO engaged, also. I did spot some fresh oil under the air filter housing, right near the hose that goes into air filter area.

Last year, she ran well with PTO engaged, and would hunt more without a load. I'll check around tomorrow, but thought I'd check back here also. Ideas?
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  #2  
Old 05-04-2015, 11:13 PM
J-Mech J-Mech is offline
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Sooo...... what's your question?

You want to know where the smoke is coming from? Or the oil... or why the engine "hunts"? Your post reads more like a story than a question.
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  #3  
Old 05-05-2015, 07:41 AM
neilh419 neilh419 is offline
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Sorry about that. I can't seem to figure out why it's losing power. I'm not sure if the smoke is related at all. When running the PTO, sometimes it will sound as if the motor is about to shut off.
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  #4  
Old 05-05-2015, 08:20 AM
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Sam Mac Sam Mac is offline
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I'd do a compression test on it. Just went through the same issue on a Vanguard that had a blown head gasket. Here is the thread.
http://www.onlycubcadets.net/forum/s...ad.php?t=37590
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  #5  
Old 05-05-2015, 03:12 PM
Mike McKown Mike McKown is offline
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Ditto to the head gasket.
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  #6  
Old 05-05-2015, 11:04 PM
neilh419 neilh419 is offline
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Well, I was attempting to get down to the head, and it took me a little while to get all the metal free, after finding all the bolts. I opened up the carb again, and there was some more crud in it, so I cleaned it back up. It was pretty filthy under that metal, I've never had it all the way off, so I know I've never cleaned under there. I suspect that as oil has spewed all over, it really caused it to gunk up, and trap all that crap.

A few things I found... Some oil under the air filter (pic. attached). It also appeared that the choke had been bent down, and I don't think it could actually open up all the way. It would hit the metal bracket where the air filter mounts. I also picked up a fuel filter today, because mine didn't look too great.

I've put in a few pics just so you can see where I'm at.
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Cub Cadet is a premium line of outdoor power equipment, established in 1961 as part of International Harvester. During the 1960s, IH initiated an entirely new line of lawn and garden equipment aimed at the owners rural homes with large yards and private gardens. There were a wide variety of Cub Cadet branded and after-market attachments available; including mowers, blades, snow blowers, front loaders, plows, carts, etc. Cub Cadet advertising at that time harped on their thorough testing by "boys - acknowledged by many as the world's worst destructive force!". Cub Cadets became known for their dependability and rugged construction.

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