Re: Farmall H siezed Engine 1 cyclinder full of w

Posted by Chris Vangel on February 20, 2004 at 17:14:42 from (66.136.184.142):

In Reply to: Farmall H siezed Engine 1 cyclinder full of water posted by Mike Linderman on February 20, 2004 at 14:44:01:

Howdy. I am a 14 year plus auto mechanic. I learned a new trick (new to me, anyway)I thought of it myself and have told a few others to try it. I have had locked engines before on tractors and outboards that were stored in poor manner. I filled the cylinders as you did with penetrating oil or motor oil or whatever lube I had. Then let it soak awhile. Here's what I did different that worked for me. I took the end of my compression tester and screwed it into each spark plug hole, I then hooked up pressurized shop air to the hose. Adding 125 psi of pressure to the oil in the cylinder forces the oil around the rings. This helps quite alot. Consider it to be 'speed soaking'. After soaking and pressurizing, try to turn the engine by hand first. Sometimes the air pressure itself will turn the engine as it forces the piston down. Of course this only works for cylinders which have their valves closed. Turn the crank both directions by breaker bar and see it it breaks loose. If it turns, make sure that it turns 360 degrees. If is possible to have a valve stuck wide open and you don't want to bend it with a piston using the starter. If you hit it while turning by hand, you won't be able to turn 360 degrees and shouldn't bent a valve. I don't like to use the starter because if something is stuck badly, you can bend a connecting rod or damage the starter drive. I have used this method a few times and been successful. Good luck

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