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Restoration & Repair Tips Board

Re: IH utility 300 motor stuck??

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El Toro

03-23-2012 04:14:53

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Use ATF in the cylinders and let it soak. Don't pull the tractor as you can damage the drive train. Hal

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03-23-2012 04:45:31

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 Re: IH utility 300 motor stuck?? in reply to El Toro, 03-23-2012 04:14:53  
Thanks Hal, Lots of people telling me not to pull it, so I hope i did not bend anything. I'm through soaking untill I get the head off. The diesel fuel sitting in the cylinders for a week, along with the Marvel;s mystery oil should have done somthing if it were going to work. I think with the head off I could use a wood block to bang on the crowns of the pistons. I'll keep the thread updated, and add a link to video I'll be uploading.

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03-23-2012 12:50:10

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 Re: IH utility 300 motor stuck?? in reply to Stevewatr, 03-23-2012 04:45:31  
Diesel fuel and MMO do not work well for unlocking and engine. Was the exhaust ever uncapped so rain water could get into the engine?? If it was you might as well open it up because all the oil etc you can pour in will be a waste of time. Oil floats on water so as I said a waste of time since the oil will never get where it needs to be. If the cylinders where dry wick the stuff you have in out then fill with ATF and let sit a week or 2. Then set a good 12 volt battery in and use short fast taps of the starter to pop it free. BTDT more then 25 times now and 99% of them freed up for me

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d beatty

03-23-2012 05:54:21

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 Re: IH utility 300 motor stuck?? in reply to Stevewatr, 03-23-2012 04:45:31  
Steve give the oil time to work. I have had engines set for a month before they started to move and then move it a little each day till free. Don't pull it you could end up doing more than just the engine.

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03-23-2012 19:38:54

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 Re: IH utility 300 motor stuck?? in reply to d beatty, 03-23-2012 05:54:21  
I tried a trick suggested by another person. I removed the starter, and used a pry bar on the ring gear. With a little force, i was able to start it turning, then it got easier. Rotated a quarter turn that way! Got excited and remounted the starter, but it only spun slightly,maybe 15 degrees, then seemed stuck again. Pulled the starter again, and found i could not budge it any further. Pulled the valve cover and found 3 exhaust valves stuck open. Squirted some MMO on them, and gave them a few taps. One popped free, but the other two are stuck good, I can tap them down further, but they just stay that way, so I started pulling the head. Should have it off by tommorow afternoon.

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