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Unsticking Old Rusty H With Hydraulic Jacks??

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The Red

05-25-2001 11:28:18

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I have been toying with this idea. I thought about sticking blocks in the two higher pistons, placing a jack on top, and wrapping a log chain around the engine. When you work the jack handle, it will force those two pistons down. I would also have two jacks underneath to push up the lower pistons at the base of the connecting rods on the crankshaft.

Has anybody tried this idea? Or am I looking at breaking four connecting rods???? Any thoughts on this idea would be appreciated!

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Redfan

05-26-2001 04:29:52

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Re: Unsticking Old Rusty H With Hydraulic Jacks?? in reply to The Red, 05-25-2001 11:28:18

I had a similiar problem with a 15-30 Red. The pistons came out but the sleeves were well stuck. I placed a heavy beam under the tractor, tied a high tensile chain around the beam and secured it to the tub of the 15-30. A 20 ton jack was used between the beam and the sleeve. They all come loose, but two of them took all twenty tons and all my nerve to crack them loose. Went off like a 12 gauge. Perhaps you could use a similiar setup on the bottom of your pistons. Regards, Redfan.

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The Red

05-26-2001 04:34:38

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Re: Re: Unsticking Old Rusty H With Hydraulic Jacks?? in reply to Redfan, 05-26-2001 04:29:52

Thanks RF. This engine had a rebuild and then got stuck not too long afterwards. Now that might have been 10 years ago. If I can get the pistons out, I will probably just hone the sleeves. They have little to no wear.

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Bob in Southwest Iowa

05-25-2001 15:01:37

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Re: Unsticking Old Rusty H With Hydraulic Jacks?? in reply to The Red, 05-25-2001 11:28:18

Red,

For the two tractor projects I have done, I unbolted the rods and then placed an oak 2X2 at the end of the rod that was then exposed and on top of a hydraulic jack. Upward pressure was applied until the front of the tractor started to come off the ground. By doing this and then removing the jack and bashing downward on the piston top with another 2X2, I was able to slowly get the piston to move first down then up. I found it very useful to measure between the piston top and the top of the block to keep track of any movement. I used PB Blaster too but don't know if it helped or if it was just ready to come out anyway. I hope this helps. Good luck!

Bob

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Matt

05-25-2001 11:45:46

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Re: Unsticking Old Rusty H With Hydraulic Jacks?? in reply to The Red, 05-25-2001 11:28:18

Red, You're probably going to bend the crank, I wouldn't do it. If you're already that far along, why not disconnect the rods and push all the sleeves out from the bottom. Probably only one or two are really stuck, you can tell after you disconnect the rods. I had a 350 that was stuck, only one cylinder was really stuck the rest were ok. If you're careful, you may have to only replace one or two sleeves and reuse the pistons. Good Luck!

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Red Raider

05-25-2001 13:59:20

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Re: Re: Unsticking Old Rusty H With Hydraulic Jacks?? in reply to Matt, 05-25-2001 11:45:46

But if you can't get to both of the rod cap screws , you're out of luck. I have cylinder 2 & 3 in the 450 on a jack right now, and to protect the rods and crank, just a little upward pressure from the jack is resting on the crank. Pistons 1,2, & 3 are stuck. PB Blaster is everywhere.

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The Red

05-25-2001 14:03:37

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Re: Re: Re: Unsticking Old Rusty H With Hydraulic Jacks?? in reply to Red Raider, 05-25-2001 13:59:20

I can get to two of them very easily. I think I can get the wrench on the other two. They are not that far from being at the half way point in the cylinders.

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Red Raider

05-25-2001 14:24:50

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Re: Re: Re: Re: Unsticking Old Rusty H With Hydraulic Jacks?? in reply to The Red, 05-25-2001 14:03:37

Red, you're lucky to reach all of them. I've tried everyting except adding one inch of diesel in the cylinders, then lighting the diesel. May try that too this weekend. Don't forget to wear the lucky shirt and mumble an ancient chant while working on the ol' girl.

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The Red

05-25-2001 11:51:34

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Re: Re: Unsticking Old Rusty H With Hydraulic Jacks?? in reply to Matt, 05-25-2001 11:45:46

Thanks Matt. Where did you exactly push on the pistons? Did you run a rod up underneath so you were pushing on the casting that holds the piston pin?

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Matt

05-25-2001 12:07:20

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Re: Re: Re: Unsticking Old Rusty H With Hydraulic Jacks?? in reply to The Red, 05-25-2001 11:51:34

Red, I used a sledge hammer handle, put a hydraulic jack under the tractor and jacked the sledge handle up until it reached the piston, then continued jacking until it came loose. The one that was really stuck almost lifted the tractor off the ground before it broke loose. I then broke the cylinder sleeve apart to get the piston out, glass beaded it, replaced the rings and used a good used sleeve(honed). Still have 125 psi compression after 4 years of occasional use.

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The Red

05-25-2001 12:13:28

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Re: Re: Re: Re: Unsticking Old Rusty H With Hydraulic Jacks?? in reply to Matt, 05-25-2001 12:07:20

Matt thanks for the instructions! When we get a dry spell, I'll unhook the rods from the crank and give that a try. I'll use a log splitter handle. I have a 12 ton jack so that should be enough horsepower. Since someone left the head off this puppy for a few years, even though it was covered, I have a bad feeling all 4 will be very stuck. :(

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gene b

05-25-2001 17:51:28

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Re: Re: Re: Re: Re: Unsticking Old Rusty H With Hydraulic Jacks?? in reply to The Red, 05-25-2001 12:13:28

sounds like a good plan maybe you will get lucky and the sleeve will come also if they are stuck that bad they probably aint no good anyhow would be nice to get them free and maybe a hone job and new rings would work why cant you make a frame work on top of the block and push down on two and the same on the bottom and push up if they are over center aalways thought that would have to work have a motor of a 55w that is a C with starter and even a place for the hy pump that is the way i will try that one two cycls are loose you can feel when tapping just aint got to it yet

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The Red

05-26-2001 07:09:14

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Re: Re: Re: Re: Re: Re: Unsticking Old Rusty H With Hydraulic Jacks?? in reply to gene b, 05-25-2001 17:51:28

Gene I have a sleeve puller that I bought from Ron Jacobsen 2 years ago. Works quite well. I think I will unbolt the two rods that are easy to get to and try to push those pistons up and out. Then I'll decide what to do from there.

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