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Working on Stuck Engine

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Flewster

07-15-2007 18:20:07




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Ok I have pulled the head off of my DC and found the number 2 cylinder is stuck. All the rest I don't hink are stuck because the PB Blaster just runs out of them when I fill the cylinder. the number 2 does not drain it just sits in there so that I why I think #2 is the stuck cylinder. And it also had rust in it which the other 3 did not..... ..... ..QUESTION>>>>>I can not get it to budge with the hand crank..... letting it sit again over night but thought I would try pulling it tomorrow..... would that be a bad thing or not?

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mowr

07-16-2007 19:08:34




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 Re: Working on Stuck Engine in reply to Flewster, 07-15-2007 18:20:07  
With the tractor in high gear, grab a rear tire and rock the tractor back and forth. The weight and momentum of the tractor moving plus the changing of direction of force on the piston often helps to free it. Finesse often succeeds where force would bend or break things.



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Jerry Thomas

07-16-2007 16:14:44




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 Re: Working on Stuck Engine in reply to Flewster, 07-15-2007 18:20:07  
I broke one loose by putting two long bolts in the hub for the belt pully put along bar through them and give it a tug took a can of deep creep and two days .



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JGarner

07-16-2007 09:36:30




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 Re: Working on Stuck Engine in reply to Flewster, 07-15-2007 18:20:07  
Hopefully Tom will read these, there are 2 right together here in the Case forum on the same subject. If not try addressing the question to him here by putting his name in the subject line. Tom seems to be very good at answering questions and help us solve problems, would that one day I be able to met him and shake his hand. He's a downright helpful and christian fellow, need more like him in this old world

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Flewster

07-16-2007 09:13:48




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 Re: Working on Stuck Engine in reply to Flewster, 07-15-2007 18:20:07  
I think I am too impatient..... I just need to let the PB Blaster sit for a few days then try again later..... .I took off the inspections covers and tehre is no rust or anything on the connecting rods as far as I can tell..... so hopefully it is just the #2 cylinder..... .I wish I had access to a welder because I sure would have tried Toms way first as it sounds like it would do the trick..... I tried the gasoline but to no avail.....this piston is near the top of its stroke so probably not enough room for the heat to work..... I put it in all the cylinders just to try..... .I put on new battery cables and starter cable and gave it shot quick bumps..... it moved a fraction but then would not budge any more so hopefully I am on the right track..... ..till later..... ..Wayne..... ....BTW thank you for all the great advice..... .sure wish I could search in the modern forums but can't always have to search in the classic which makes it toughr but doeable..... .

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caseman-d

07-16-2007 20:45:22




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 Re: Working on Stuck Engine in reply to Flewster, 07-16-2007 09:13:48  
remember it didn't get stuck over night. If you have the head off clean as good as you can between pston and sleeve. Spray it with what ever slightly. Take a block of wood about same size as piston and tap, causing viberation for the fluid to work down. Another solution is that the engine has wet sleeves so you could pull sleeve and piston together. It all takes time,

caseman-d



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old

07-15-2007 21:11:03




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 Re: Working on Stuck Engine in reply to Flewster, 07-15-2007 18:20:07  
Don't pull it. If you do it can brake a rod. My self I never use PB to loosen up a stuck engine. I use tranny fluid. I also use the started not the hand crank. A starter will produce more torque then 5 men can if all of them could grab the hand crank. Set a 12 volt battery in it and hit the starter button with short fast taps. Most of the time doing that will pop one free. Also since you have the head off you can put in a table spoon of gas and light it up. That heats up the block/sleeve but not the piston and some times that helps to pop one free. I do a lot of stuck engines. Shoot out of the 30 or so tractor I have 50% where stuck when I got them and all but 2 came free with the tranny fluid

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JGarner

07-16-2007 07:03:19




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 Re: Working on Stuck Engine in reply to old, 07-15-2007 21:11:03  
I know "old" says this works for him, but there is no way I am going to lite up gasoline in my work shop or garage. Gas and its resulting fumes are highly explosive and you run a big risk of burning yourself or catching all of the things around you on fire. If you use "old's" procedure do so with much caution.



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old

07-16-2007 07:49:24




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 Re: Working on Stuck Engine in reply to JGarner, 07-16-2007 07:03:19  
Very true best done out side if you can but I have done it in my shop a few times. I just make sure all doors are open and have safety equipment right at hand to be on the safe side



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caseman-d

07-15-2007 20:44:30




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 Re: Working on Stuck Engine in reply to Flewster, 07-15-2007 18:20:07  
Try pulling the starter and try prying on the flywheel wit a big bar, Got my 900B free that way. I was just about ready to sell it as a parts tractor when I went and tried it once more. Advatage of pryng on flywheel is you can work it both directions and more torque.
caseman-d



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l gehring

07-15-2007 19:16:58




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 Re: Working on Stuck Engine in reply to Flewster, 07-15-2007 18:20:07  
i have an sc that had water enter thru the exhuast. i didn't pull the head. i used pb-blaster and trans fluid. put it in 3rd gear and rocked it every night for a week. i would rock it with my hand on the crank pulley, when i felt it move, i put a pipewrench on it and it turned over fairly easy. had 1 piston stuck. took everything apart, cleaned it, ground the valves, replaced 1 valve, head gasket, and straightened 4 push rods. it runs very well! good luck and paitence to ya.

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Mathias NY

07-15-2007 19:16:25




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 Re: Working on Stuck Engine in reply to Flewster, 07-15-2007 18:20:07  
Time is the best method. Try using a bottle jack under the hand crank, and let it set. Sometimes the constant pressure will force things free. Also using the weight of the tractor will give you a lot more force than just a guy pulling on the crank handle. I'm not sure but you may need to come up with something to keep the sleeve from pushing out.



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Dutchman

07-15-2007 18:40:27




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 Re: Working on Stuck Engine in reply to Flewster, 07-15-2007 18:20:07  
I have heard if you jack up one back wheel and put it gear [ a higher one ]and rock the wheel back and forth you can get it loose that way.. never try it myself..... yet hope this helps....mv



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