Re: Seized up Farmall Super W-6

Posted by Loren on May 16, 2003 at 11:30:08 from (64.65.174.118):

In Reply to: Seized up Farmall Super W-6 posted by Mitchell Pool on May 15, 2003 at 18:28:55:

Martin Seynour paints makes a metal cleaner called Iron Etch, which is a phosphoric acid solution used for metal prep. It's sold by NAPA. This stuff works every time.

Take the head off the engine and pour about 1/2" of Iron Etch on top of the stuck piston, and let it sit overnight. The next day, put a block of wood on top of the piston and pound it down. You can have someone else put a bar on the flywheel ring gear to help move it. The solution will leave a slightly rough finish where it contacted the cylinder, but it can be honed out. After you get the piston moving downward, you can then use a long piece of wood to tap it up and out of the cylinder.

You would want to drop the oil pan and remove the rod bearing caps to find out which pistons are stuck, as well as to find out which way the flywheel should be turned as the stuck piston is moved down. With the caps off, try tapping the pistons up using a long piece of wood. If some of them are not stuck, then you can drive them up and out. If you have two pistons stuck, disconnect the rod bearing on one of them and keep it out of the way using a rag to keep from scratching the crank. This way your not trying to move both at the same time.

I used this method to remove stuck pistons in a 10-20, M, and A, and it has worked very well. My uncle has also done this with F12 and F20 engines. I just bought a W9 with a stuck motor, so I'm going to do the same thing with that.

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• Re: Re: Seized up Farmall Super W-6 Loren 11:39:30 05/16/03 (0)

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