Hydrolocked

[smokeonthewater]

Hydrolocked or hydrauliced is when the cylinder gets liquid in it.
Liquid does not compress and thus it locks the engine...
Fixing it can be as simple as removing spark plugs and cranking OR it can require major repairs... If water was ingested by a running engine it can do extensive damage to rods, pistons, rings, even crank...

Example my 7.3 Powerstroke had an injector fail and was allowing way too much fuel to enter #7 cylinder.... All the rings on that piston got shattered and the cylinder and piston got scored... That rod bearing was also damaged... I replaced the motor....

A buddy drove through high water and killed his chevy 305... The rod on one cylinder got bent.

I sank a jetski after hitting a rock at high speed but I killed it as soon as the engine was a out to go under... Pulled the plugs and cranked it over with throttle held open till water was expelled.... Replaced plugs and fired it up with no damage.