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H3 149 engine froze
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badtrack View Drop Down
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Joined: 02 Oct 2015
Location: United States
Points: 39 		Post Options Post Options   Thanks (0) Thanks(0)   Quote badtrack Quote  Post ReplyReply Direct Link To This Post Topic: H3 149 engine froze
    Posted: 10 Feb 2016 at 9:20am
Fly wheel locks up when freezing temps out. Runs OK when not freezing out. Cap on exhaust pipe. Where could water be getting in?
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DMiller View Drop Down
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Joined: 14 Sep 2009
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Points: 33716 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DMiller Quote  Post ReplyReply Direct Link To This Post Posted: 10 Feb 2016 at 10:18am
I would more suspect a valve hanging in a guide or a rocker arm trying to seize in the cold, will stop one solid.   These are torque converter tractors?  Could also be water in the converter housing if is.

Edited by DMiller - 10 Feb 2016 at 10:19am
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badtrack View Drop Down
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Joined: 02 Oct 2015
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Points: 39 		Post Options Post Options   Thanks (0) Thanks(0)   Quote badtrack Quote  Post ReplyReply Direct Link To This Post Posted: 10 Feb 2016 at 11:38am
Thanks for the tip. Next week is going to get above freezing so I may see if it unlocks by itself again before I inspect the valves.
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orangeman View Drop Down
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Joined: 12 Sep 2009
Points: 1847 		Post Options Post Options   Thanks (0) Thanks(0)   Quote orangeman Quote  Post ReplyReply Direct Link To This Post Posted: 10 Feb 2016 at 4:05pm
Pull the plugs and see if the engine rolls.   

Potential head gasket leak into cylinder(s)?  What color is the exhaust when it is running?

Internal combustion engine compresses and ignites vapor - cannot compress liquid or watering entering combustion chamber.   

Before tinkering with Valves, pull the valve cover, observe the rockers while the engine is rolled over by hand.  See if any of the valves are hanging in the valve guide.

Good Luck...Orangeman
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Lee Bradley View Drop Down
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Joined: 13 Oct 2009
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Points: 120 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Lee Bradley Quote  Post ReplyReply Direct Link To This Post Posted: 10 Feb 2016 at 6:10pm
Water in the bottom of the bellhousing?
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badtrack View Drop Down
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Points: 39 		Post Options Post Options   Thanks (0) Thanks(0)   Quote badtrack Quote  Post ReplyReply Direct Link To This Post Posted: 16 Feb 2016 at 1:17pm
Yesterday was a high of +31. Warmed the block above freezing. Took tappet cover off and could move all the valves a little. ( none stuck) still could only move the flywheel 1\8 back and forward. Bumped it with the starter and it came free. Ran it for 45 minutes pushing snow.carb has issues. This morning the engine is stuck again???.
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DMiller View Drop Down
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Joined: 14 Sep 2009
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Points: 33716 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DMiller Quote  Post ReplyReply Direct Link To This Post Posted: 16 Feb 2016 at 2:16pm
Engines generally do not freeze then unfreeze, I am leaning to water inside somewhere rocking up when cold.
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Points: 34283 		Post Options Post Options   Thanks (0) Thanks(0)   Quote JC-WI Quote  Post ReplyReply Direct Link To This Post Posted: 16 Feb 2016 at 7:03pm
Water in the clutch housing.. or some where else???  water in the hydraulics/ pump?
He who says there is no evil has already deceived himself
The truth is the truth, sugar coated or not. Trawler II says, "Remember that."
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badtrack View Drop Down
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Points: 39 		Post Options Post Options   Thanks (0) Thanks(0)   Quote badtrack Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 2016 at 7:52am
After pushing snow I drove it up on planks and blocked the clutch disingauged. I will drop the belly skid plate and get a look in the clutch adjusting port. When I got this unit it had sat for years and mice filled the flywheel housing with all of what they do in their nests. Took days to free the clutch plate from the spline. I'll report what I may find. Don't have a heated place to work so l'll pick warm days.( +20's F)
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Points: 39 		Post Options Post Options   Thanks (0) Thanks(0)   Quote badtrack Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 2016 at 1:55pm
Got the skid plate down and removed the clutch adjusting plug. About 3/8inch of ice in the bottom. Took a propane torch to it and it freed right up. I had parked it with the nose down a little which didn't help any. Now I have the nose up about 5 degrees got most of the water out. Thanks so much for all the great tips. Now I can use it and work on the carburetor problem. Acts like the float hangs up at times.
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