Oil lubricates the pistons so they can move within the cylinders. It doesn't matter how you go about it. I had to disassemble a 440 for friend a few years ago that was stuck. I generally coat the cylinders each day and try to turn engine. Seizing of the engine is when a major component stops moving, stopping the entire engine. I have used in the past brake fluid and ATF mixture. Generally after a few days I can usually free up a stuck or seized engine. One thing that can happen is that the engine can seize. This is the method we use in the Junk yard. Generally, the engines are seized due to the lack of proper oiling. Switch your transmission to neutral and get to a safe spot if you are not already. Without it, metal would scrape against metal and create a lot of heat. If you're talking a common SBC, that's one thing, but a 428CJ is another. Re: Breaking loose a seized engine Trying to free up an engine by turning the crank is a bad idea. Two things you can't have too much of in freeing a seized engine. Technical Buying a seized-up engine Do's & Don'ts. Engine Release is a new releasing agent, the first of its kind, specially formulated to destroy corrosion, lubricate cylinder walls and free up seized pistons. Reason For A Lawnmower Engine Seized Up. Just try to turn the engine over one or two times. It wouldn't budge. The most common cause of a seized engine is a lack of oil. We have access to free lubricants. An engine, however, does not just get up and start over. 1) Patience and 2) penetrating oil. How to Unlock a Seized Engine. Resources. If your engine decides to lock-up on you, then you’ve got a real problem on your hands. Let’s see the actual reason for the engine to seize. The failure or damage of engine parts can be another probable reason, but it is very rare for this problem to create a seized up engine. If you don’t use your lawnmower for a longer period of time, then the engine becomes seized. An engine seized due to lack of lubrication, such as you describe, means that the crankshaft bearings, main bearings and camshaft bearings have all probably seized - seizing in this situation means serious surface damage to the bearing surfaces in contact - in fact the surfaces can actually get welded together. Basically there are a few reasons that are responsible for engine seize. Joined: Oct 12, 2013 Posts: 25. 0. You may get lucky and be able to fix it yourself right away. Profile Page. WilliD. from Illinois. Discussion in 'The Hokey Ass Message Board' started by WilliD, Oct 3, 2020. Member. If the oil is not adequate for the engines to work properly, there are chances of small to major damages to the engine. It's too easy to damage something. What causes an engine to seize? If your engine seized up and you diagnosed the seized engine symptoms, it is time to learn how to free a seized engine. 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