What does Hydrolock an engine mean and how?

thexav

Pro Tuner
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2002 Clio 172
What is Hydrolock? What does hydrolock do and how can you Hydrolock your engine?
 
It is where water gets into the cylinder. As you learned at school fluids cannot be compressed like air can so when the piston pushes up and tried to compress the fluid in the cylinder it will break something.

I've seen blocks split, pistons bent in 3 directions and broken con rods and cranks.

Driving through water, or spraying water or a fluid into the engine intake is just asking for trouble.

Strangely enough people do this to clean the engine without realising how much of a problem this can be.
 

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