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what exactly is hydrolock

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Old 02-23-2006 | 05:30 PM
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google is your friend. note "can damage engine"

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In automotive terminology, a hydrolock is the immobilization of an engine's pistons by a liquid (usually water, hence the prefix "hydro-"). Hydrolocking occurs when liquid fills a cylinder on the intake stroke and, due to the incompressibility of a liquid, makes the compression stroke impossible. This, in turn, prevents the entire engine from turning, and can cause significant engine damage if one attempts to forcibly turn over or start the engine.
Old 02-23-2006 | 05:35 PM
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Originally Posted by SweART,Feb 23 2006, 09:29 AM
What? You park in a lake? And then you try to START the car there?
The placement of the filter on the aem intake allows water to drop on it from a hole in the rain rail. During a hard storm it can totally saturate it plus the angle of the pipe if it's low can hold water.
Old 02-23-2006 | 06:40 PM
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Originally Posted by 1a-race,Feb 23 2006, 08:30 PM
Hydrolocking occurs when liquid fills a cylinder on the intake stroke and, due to the incompressibility of a liquid, makes the compression stroke impossible. This, in turn, prevents the entire engine from turning, and can cause significant engine damage if one attempts to forcibly turn over or start the engine.
You found the answer yourself and proved exactly what I was trying to say.

You didn't hydrolock your engine. why? you didn't have to go into your engine to remove the water that was in there. the engine was able to struggle by on it's own. see this part from your own definition:

makes the compression stroke impossible. see that? IMPOSSIBLE. the ONLY way to fix a hydrolocked engine is to take it apart and remove the water and dry it out. you didn't do that. removing the intake from the TB didn't remove the water from the engine. what you suffered was just a temporary sputter from the engine not being able to start due to water being taken in.

hydroLOCKING is exactly that. it LOCKS the engine in place because the compression stroke CANNOT continue until the water is removed by either A. you taking the engine apart and removing it, or B. the engine throws a rod, or becomes damaged in some way, at which point you're F'ed.

people HAVE hydrolocked their cars before with no damage. they immediately realized what had happened and took the block apart and let everything dry. put it together, and fortunately it worked.

all you did was get a little water in your engine, which was not enough to actually hydrolock it, but enough to cause the engine to sputter or fail to start momentarily.


I know this may seem like a nit picky thing, but people throw around the word hydrolock way too much without truly understanding what's going on.
Old 02-23-2006 | 06:55 PM
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Originally Posted by Emil St-Hilaire,Feb 22 2006, 07:09 PM
It's when your engine swallows water.!!!
Old 02-23-2006 | 08:20 PM
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[QUOTE=Wisconsin S2k,Feb 24 2006, 03:40 AM] people HAVE hydrolocked their cars before with no damage.
Old 02-23-2006 | 10:49 PM
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Originally Posted by SeattleJason,Feb 22 2006, 06:43 PM
If you're lucky you can remove the plugs and turn the engine push the water out.

If you're unlucky you're going to bend or break a piston rod, then you're screwed =\
You can sometimes remove the spark plugs, break the engine loose with a breaker bar, then crank the engine so it spits the water out the spark plug holes (it shoots high too).

Same thing happend to me, new years eve, the rain, aem, puddle.

Luckly I was able to do as stated above.
Old 02-24-2006 | 12:15 AM
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Originally Posted by chairmnofthboard,Feb 24 2006, 07:49 AM
You can sometimes remove the spark plugs, break the engine loose with a breaker bar, then crank the engine so it spits the water out the spark plug holes (it shoots high too).

Same thing happend to me, new years eve, the rain, aem, puddle.

Luckly I was able to do as stated above.
your engine was locked by hydro and you didn't have to rebuild your engine?
Old 02-24-2006 | 12:48 AM
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Originally Posted by chairmnofthboard,Feb 23 2006, 11:49 PM
You can sometimes remove the spark plugs, break the engine loose with a breaker bar, then crank the engine so it spits the water out the spark plug holes (it shoots high too).
If your car is parked in a heavy rain storm, it will collect water in the intake pipe ala AEM. It will shut off immediatley after being started. This is possibly why your engine didn't expire.

If your engine is spinning fast enough while it sucks in a substantial amount of water, (like driving through a puddle) there is a very high possibility that it will be damaged significantly.
Old 02-24-2006 | 06:47 AM
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Originally Posted by 1a-race,Feb 23 2006, 11:20 PM
You are correct and thanks for reaffirming my hydrolock situation. A sputter was not what I encountered. After a long rain(hydro) I immediatedly knew that after the engine cranked for not even a second it would not budge for 3 hours.
Evaporation dear Watson! The only reason for removing the intake was too avoid sucking up more water.

Interpretation of the english language must be different in Wisconsin.
you left out the part where you let the car sit for several hours with the intake off to try and allow the water to evaporate. do you think I'm like xviper and I have a crystal ball that tells me when someone leaves out details that completely changes their story?

my english is just fine thank you, but when you omit an important detail, it can completely change what you're saying. next time don't leave out important details of your story, and then get all worked up about it because someone takes it exactly the way you portray it.
Old 02-24-2006 | 06:48 AM
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Originally Posted by 1a-race,Feb 24 2006, 03:15 AM
your engine was locked by hydro and you didn't have to rebuild your engine?
now you're just being an ass. grow up.


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