Best way to loosen cylinders?

John from NH · Jul 3, 2014

I haven't been able to break the cylinders loose from the crankcase on a 206L-4 engine. It has two stuck pistons so I'm trying to remove the cylinders. The heads have been removed and all the connecting rods have been disconnected from the crankshaft. The three bolts on the manifold side of each cylinder have been removed. I've tried prying them off and firm blows with a block of wood and a five pound hammer with no luck. The engine is in a Big Mo 500 so the loader is in the way which makes it a little hard to get at things.

I'm thinking of rigging a tripod with a come-a-along to pull straight up on the cylinders. Would a little heat applied to the base of the cylinders help loosen things up?

Any suggestions or tips would be most appreciated!

Thanks!
John

brian(MN) · Jul 3, 2014

WAIT WAIT! There is more bolts holding that block down, there are the 3 that you removed and and if my mind serves me correctly, there is 2 on the opposite side, you get them from the bottom. I wish I was at the other place and be sure about this. Don't ask me how I know about this. If it does not come apart with a little prying (just to break the gasket loose) something else is holding it.

John from NH · Jul 3, 2014

Now I feel kind of goofy...I even checked the parts manual looking for attaching hardware.

I just looked with a mirror and flashlight and sure enough I found the bolts you mentioned. There are actually three for each cylinder.

Thanks for the help!

(quoted from post at 21:09:17 07/03/14) WAIT WAIT! There is more bolts holding that block down, there are the 3 that you removed and and if my mind serves me correctly, there is 2 on the opposite side, you get them from the bottom. I wish I was at the other place and be sure about this. Don't ask me how I know about this. If it does not come apart with a little prying (just to break the gasket loose) something else is holding it.

mmfan55 · Jul 4, 2014

WHEN ALL ELSE FAILS; READ THE INSTRUCTIONS!!! (been there; done that)

Anonymous-0 · Jul 10, 2014

I can't understand why anyone would try to work on any tractor without first getting a service manual.The I&T ones are very good and dirt cheap, if you place any value on your time or the parts you can destroy. There is a paragraph on removal of the blocks, clearly tells to remove bolts on right side, remove the cam shaft, remove the bolts on left side then lift the blocks.

John from NH · Jul 10, 2014

Who said I didn't have manuals? I have the parts manual, general maintenance manual and the I&T shop manual which I had read several times. For whatever reason (bad eyesight, bad weather, my real job, frustration, life events, etc.) I missed the required details until Brian's reply snapped me back to reality. I guess you've never run into a roadblock like that. Like I said, I felt pretty goofy once I saw the light.

Best way to loosen cylinders?

John from NH

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brian(MN)

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John from NH

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mmfan55

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Anonymous-0

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John from NH

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