Mercruiser outdrive. Chevy 350 engine.
Rings stuck from sitting...Needs Mystery Oil in Cylinders
GOOD WINTER PROJECT
Gimbal bearing in outdrive should be replaced.
Drainplug should be replaced.
Ezloader Trailer may need tires
Check brakes
Title for boat but not trailer.
Piston rings can rust and lock an engine in place when moisture enters the cylinders and sits for a long time. How Rusted Rings Seize an EngineMoisture exposure: Rainwater, humidity, or coolant leaks get inside the cylinder bore when an engine sits unused.Metal-on-metal contact: Oil drains away from the cylinder walls, exposing the iron or steel piston rings to air and water.Rust expansion: Rust forms between the piston ring, the piston groove, and the cylinder wall. Because rust takes up more space than solid metal, it wedges the ring tightly against the cylinder bore and locks the piston in place. Fixing a Seized Rusted EnginePenetrating fluids: Pouring penetrating oil, diesel fuel, or automatic transmission fluid down the spark plug holes can help dissolve the rust over days or weeks. Gentle pressure: Mechanics use a breaker bar on the crankshaft pulley to gently rock the engine back and forth once the fluid has time to soak.Potential damage: Forcing a rusted engine can snap piston rings or score the cylinder walls, sometimes requiring a full rebuild or boring. If you are dealing with a seized engine, tell me:What kind of engine it is (car, tractor, small lawnmower)?How long has it been sitting?I can share the best steps to safely unseize it.