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Farmall & IHC Tractors Discussion Forum
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Seized H engine

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L Collins

04-05-2006 15:54:07




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I have done all of the things pointed to as working, have rotated the wheel on the left side after blocking, to no avail. Please give me a step by step from the beginning as to what to use, how to proceed and full instructions to free this seized engine and what to look for (possibly in wrong gear but do not know the positions) or whatr??? Please could you help me? I know nothing about this unit as I bought it with the place.

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Thomas Windsor

04-06-2006 20:38:43




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 Re: Seized H engine in reply to L Collins, 04-05-2006 15:54:07  
You can soak these cylinders till the cows come home if it is really frozen up. Ths rust bond is stronger than any weld. If it is like this, you can bet your last cent that the rings are gone and that the walls of the cylinder are pitted. If you have not taken the head off and you can remove the plugs...my suggestions is, if after rocking the tractor it will not break loose, is to forget the tranny fluid and all the other conconcoctions that can be dreamed up and pour the holes full of muratic acid and put the plugs back in the holes and tighten. That acid will give off gasses and for the cylinders with the valves closed, it will build up pressure...leave it in there a day or two...then carefully get it out with a suction device other than your lips. Then again rock the tractor...if it does not then come lose, take the pan and head off...disconnect the rods from the crank...keep the caps in proper order to be put back on same rod...with a hard piece of 2x2 timber and a big hammer, jar the piston up from the bottom,putting the 2 x 2 on the cap end of the rod and not on the piston, then with short piece of 2 X 4 jar it down from the top...using a good size hammer. They will come out. Dont be too aggressive with the hammer. (I cannot remember whether these pistons come out the bottom or the top)

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gene bender

04-05-2006 18:00:41




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 Re: Seized H engine in reply to L Collins, 04-05-2006 15:54:07  
If its stuck it probably aint no good just take the head and pan off and tear it down and rebuild. You can soak and soak and end up with stuck rings and so forth so just tear it down then you will have a good engine.



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Janicholson

04-05-2006 17:24:04




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 Re: Seized H engine in reply to L Collins, 04-05-2006 15:54:07  
The pattern for shfting is:
R 2 4 N
1 3 5
Put it in 5th (right and toward you in the seat)
Rocking the wheel means violently moving the top of the tire forward and back against the point at which it stops. This bump loads the engine through the drive line.

Looking into the cylinders with a bore scope (gun tool) or other viewing method will also provide info that lets you know to pull it apart and fix what is stuck.

If one cylinder (or more) will not fill up with fluid (holding most of the fluid for at least an hour), there is no chance it can be freed, pull it apart.
Good luck. Tractor "diving" requires willingness to get really dirty. If it has been out in the rain/cold, for years, it will require a teardown.
JimN

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El Toro

04-05-2006 16:28:44




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 Re: Seized H engine in reply to L Collins, 04-05-2006 15:54:07  
You need to remove the sparkplugs and pour transmission fluid into each cylinder and let it soak. After a week of soaking see if the engine
can be moved. If the engine won't budge I would pull the head and oil pan. I would remove any thing flammable, gas tank. wires and then pour a small amount of diesel or kerosene into the cylinders and then set them on fire. You need the heat to free them. Make sure the tractor is away from any building and have a big fully charged fire extinguisher with you at the site.
Remove any sheet metal over the engine too. I think I would only do one cylinder at a time. Once it is hot I would try and drive out the piston. You may want to remove the rod caps on each piston prior to heating them. Use a piece of 2X2 oak and a hammer and don't hit the crankshaft. Hal

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James Williams

04-05-2006 16:16:44




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 Re: Seized H engine in reply to L Collins, 04-05-2006 15:54:07  
Mr. Collins
Thoes that talk about freeing a motor by just soaking or rocking the tractor,or using a block of wood are working on a tractor thats not stuck bad,I just broke a farmall c motor loose today that had been soaking with trany oil and brake fluid for a month,and we had to use a 3in shaft and a 20 lb sledge hammer,broke one sleeve and one piston



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abwdvm

04-05-2006 16:15:48




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 Re: Seized H engine in reply to L Collins, 04-05-2006 15:54:07  
My best advice. . . pull the pan, pull the head, and find out why it's stuck. I have done 10 tractors this way, and about half had nests or broken parts that would have required teardown anyway.

Have fun.



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