D6 9u

I he read lots of past posts on here about those who soak things for a year sometimes and frequently have success. I soaked a clutch compartment for a couple of months and every couple days spun the clutch 1/4 turn ( I used diesel) . Eventually the levers broke free, clutch now works fine.

Good luck !

Going thru the same thing on my D6 9U. I poured diesel and marvel mystery oil down it for over a year no luck. I pulled the head off about a month ago shop vac'd all the crud out. still soaking with different cocktails. have 3 out of 6 that are stuck the other 3 are loose. #3 and #4 center and #1 are the stuck ones. diesel drains past the rings on the loose ones after a day. I will probably end up re sleeve it but I want to get it turning over so I don't have to pull the oil Pan.

On the other hand I had a stuck John Deere d tractor and used the marvel and diesel trick and it was up in running in less than a week. But that's 2 cyl not 6. You just never know. patience is key.

Good luck!

josh

take a couple layers of cardboard put it around the cylinder wall and fill the center with dry ice leave it sit about 5-10 minutes it should shrink the piston some it might come loose.
I had a cat 28 with stuck pistons and took the jugs off and turned them upside down and filled them with dry ice this and it worked

Brilliant Idea!
I'll have to remember that one!
I have a Ten Block that I want to save and will try this, when it gets higher on the list of things to do!
Right now, they are soaking in Diesel Fuel.

Thanks Caterpillar13! I will sure try that idea! Iv already tried the fire trick in the cylinders. so ice is next on my to do list.

Thanks,

Josh

should work , I was filling the inside of the piston. when I did it I also took a wood 4x4 block and slid it in the bore and used a hammer and tapped it after it sat with the ice in it for the 10 minutes or so.. ( your mileage may very)
good luck