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Pistons Stuck in Sleeves

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Rod

12-28-1999 09:44:06

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We are in the process of restoring a D2 Cat with the engine stuck for years due to rust.

We managed to get the sleeves with the pistons out of the block. Wondering if anyone has any suggestions for a removing the stuck pistons from the sleeves other than the traditional method of various lubricants that does'nt seem to work.

Any suggestions would be appreciated.

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Clay Story

08-18-2000 21:22:32

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Re: Pistons Stuck in Sleeves in reply to Rod, 12-28-1999 09:44:06

I have used Kroil to free up stuck pistons. This product is available from Kano Labs in Nashville, Tn. Kroil actually does what the other oils claim.
I have also used it on stuck exhaust valves on a Wisconson VE-4 aircooled engine. This stuff is great.
I have also used Kreen on an old J.D. Combine which had stuck oil rings. This machine was burning oil very badly. After using the Kreen the oil consumption dropped and it stopped smoking. Kreen disolves the carbon, rust, and other deposits in the engine. This allowed the rings to expand and the power kept getting stronger.
Kreen does a good job cleaning up the inside of an old dirty engine. It is also from Kano Labs.
I sell Belzona products and learned about Kroil from one of my customers. I see Kroil in lots of plants and heavy equipment shops.
Good Luck

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Neal

01-01-2000 19:13:34

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Re: Pistons Stuck in Sleeves in reply to Rod, 12-28-1999 09:44:06

Please tell us how you do it I am very curious!!

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Jerry

12-28-1999 18:42:35

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Re: Pistons Stuck in Sleeves in reply to Rod, 12-28-1999 09:44:06

Heat the sleeves up all around, as evenly as possible, then be prepared to pound out the piston (assuming that the sleeves will be trash and you are really trying to salvage the pistons). You could also stick the hot sleeve/piston into a press and apply some real (controlled) pressure.

Good luck.

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Frank Carey

01-29-2001 05:48:26

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Re: Re: Pistons Stuck in Sleeves in reply to Jerry, 12-28-1999 18:42:35

Soak them in a product called Fluid Film get it from ford new holland dealers, best stuff i've found for eating rust and grime then beat them out

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Einstein

12-28-1999 17:38:38

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Re: Pistons Stuck in Sleeves in reply to Rod, 12-28-1999 09:44:06

Put small fire cracker under and sit on grond...
retreat

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Pops

12-28-1999 17:12:05

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Re: Pistons Stuck in Sleeves in reply to Rod, 12-28-1999 09:44:06

When I was a kid (before wd-40 and such) my ole man used to pour vinegar down the cylinders, I remember him saying the acetic acid would eat the rust out. It always seemed to work but I don't think it helped the engine much.

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AlanK

12-28-1999 17:11:45

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Re: Pistons Stuck in Sleeves in reply to Rod, 12-28-1999 09:44:06

You said ANY suggestions. The first thing that comes to my mind is to use heat. Somebody on this forum mentioned that if metal is not heated over 600 deg. there is no risk of changing the metal- to buy a 575 deg. heat stick at a welding supply and go easy. Next problem is how to heat it. Remember you said ANY suggestions, keeping that in mind I'm thinking possibly use three propane torches around the cylinder in the vicinity of the piston. Bring it up to heat a couple of times then more liqiuid penetrant and some easy tapping. One final suggestion-don't rush this, try to get more advice - something real. Good luck Alan

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Ernie

12-28-1999 17:09:58

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Re: Pistons Stuck in Sleeves in reply to Rod, 12-28-1999 09:44:06

I have never done this, you are on your own..
MF 1100 cylinders were installed this way..

Get 50-75# of dry ice, coup0le of gallons of rubbing alcohol and mix in a plastic not stryofoam cooler. Add the stuck cylinders/pistons and chill. They will be at equilibrium when the squealing and bubbling stop.

Next warm the sleeves and try tapping pistons.

Dont drop cold sleeves, they will shatter. I know.

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N D

12-28-1999 17:07:15

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Re: Pistons Stuck in Sleeves in reply to Rod, 12-28-1999 09:44:06

First soak it for about a week with some sort of penatrating fluid. Then clean most of the solvent off and GENTLY heat the sleeve to about 500 F. With the sleeve upside down drop dry ice into the piston then lightly tapp the piston out. Be careful and TAKE YOUR TIME! Good luck!

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CLOONEY

12-28-1999 18:45:38

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Re: Re: Pistons Stuck in Sleeves in reply to N D, 12-28-1999 17:07:15

ND This sounds like a real good way to remove the stuck pistons.

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TMAC

12-28-1999 16:36:20

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Re: Pistons Stuck in Sleeves in reply to Rod, 12-28-1999 09:44:06

I can tell you what NOT to do: place it on the ground, insert a block of wood, grab sledge hammer, and then do a golf club swing. Mine came out but not before breaking the lip of the sleeve.

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Dusty

01-01-2000 08:08:45

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Re: Re: Pistons Stuck in Sleeves in reply to TMAC, 12-28-1999 16:36:20

If they did not break loose with heat put some paraffin in them while they are still hot enough to melt the paraffin, it will coat everything and act as a lubricant.

Good Luck, Dusty - MI

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