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Old 10-02-2013, 03:21 PM   #1
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Hydrolocked Engine

So i have an Hydrolocked engine, and i was wondering, can it be undone? IT tries to turn over and almost catches BUT stops. Also i now have to replace the oil. AND repay to remove and install.
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Old 10-02-2013, 04:04 PM   #2
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Hydrolocked engine; how do you know its hydrolocked? Remove the spark plugs and turn the motor over, that will clear the cylinders then reinstall the plugs and change the oil and try again. Usually when an engine gets hydrolocked its a high compression race engine and stuff gets broke when it hydrolocked. If it wont turn over with the plugs removed theres a prolly a bigger problem.
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Old 10-02-2013, 04:40 PM   #3
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The Engine Is hydrolocked because water is in the cylinders. BUT after removing the plugs and removing it via cranking it it came back, which leads me to think the INTAKE ias bad and i need to get a new gasket and intake, which My older one was good. My old engine has had head work done on 5-7-13 with the K&K stamp here in jax fl. Im thinking i will start at the intake and work my way up to diagnosing. The old engine was headed. Not new one
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Old 10-02-2013, 04:52 PM   #4
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Water in the cylinders, thats not good. I woudl bet its head gaskets or a cracked head or block, a leaking intake gasket shouldnt fill the cylinders with water.
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Old 10-02-2013, 05:00 PM   #5
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Quote:
Originally Posted by sschreiner5 View Post
Water in the cylinders, thats not good. I woudl bet its head gaskets or a cracked head or block, a leaking intake gasket shouldnt fill the cylinders with water.
not filling full, but has enough to not allow start.

NOTE ONLY 70k on engine
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Old 10-02-2013, 05:35 PM   #6
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It doesnt matter if its not getting full, you need to find out how the water is getting in there. Water should never get into the cylinders. All cylinders get water in them? What engine is this? If its SBC its not from a bad intake manifold gasket. Has the motor been overheated ever?
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Old 10-02-2013, 06:15 PM   #7
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It doesnt matter if its not getting full, you need to find out how the water is getting in there. Water should never get into the cylinders. All cylinders get water in them? What engine is this? If its SBC its not from a bad intake manifold gasket. Has the motor been overheated ever?
I dont think its all of them, and sbc? 3800 series 2
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Old 10-02-2013, 07:05 PM   #8
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The engine turns a fwe times then Stops completely until its rotated in reverse.
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Old 10-02-2013, 07:15 PM   #9
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Quote:
Originally Posted by Leo72793 View Post
The engine turns a fwe times then Stops completely until its rotated in reverse.
Good way to crack a piston, been there done that.
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Old 10-02-2013, 07:25 PM   #10
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Good way to crack a piston, been there done that.
Your thoughts?
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Old 10-02-2013, 07:44 PM   #11
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Things that were kept from my 98 and placed on the 97 engine were the starter. Ac comp. Battery. Tb cable. Maf. Water pump. Mine was new. Just wanted to use the one on it to ensure it worked. Oil cap. Serpentine belt. One tensioner. And the flywheel. Mine was in better condition. The vehicle will crank 6 to 7 times then stop and sound like a bad battery but make a louder noise. Same type. Thought the starter was bad. It's not. It spins in reverse by hand with bar has some resistance. But going forward it goes and stops. Only spins reverse. Has new oil and oil filter. Thought it was hydrolocked and water did come out. Which made it turn more. It originally turned 2 to 3 now it's 6-7. I'm thinking the intake is leaking into the cylinder. Only one was checked.
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Old 10-02-2013, 07:58 PM   #12
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Could be intake, cracked head or bad head gasket.
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96 T/A, Black/Graphite Leather, T-Tops, 6 speed, 10 speaker Delco/Bose "Monsoon"
Original owner, 191k miles and counting.
Total engine rebuild at 187,020 miles.
AIR delete. Bored .030 over.
Comp cams Xtreme Energy LT1 266HR-14 street cam and springs..
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Old 10-02-2013, 07:59 PM   #13
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That would cause the engine to turn then stop as if it were to lock
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Old 10-02-2013, 08:03 PM   #14
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Quote:
Originally Posted by Leo72793 View Post
That would cause the engine to turn then stop as if it were to lock
absolutely
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96 T/A, Black/Graphite Leather, T-Tops, 6 speed, 10 speaker Delco/Bose "Monsoon"
Original owner, 191k miles and counting.
Total engine rebuild at 187,020 miles.
AIR delete. Bored .030 over.
Comp cams Xtreme Energy LT1 266HR-14 street cam and springs..
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Old 10-02-2013, 08:23 PM   #15
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absolutely
Im going to take it back and either get my money back or ill have to get my attourney
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Old 10-02-2013, 11:27 PM   #16
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Is it possible to move the bearings from one engine to another if they are good in one engine and the others are not I do not know if the crankshaft or camshaft whichever one its called is damaged beyond repair it does not cost more than about $150 to get it machine which I can't afford is it possible to do this? I have a 1998 which is the original engine, and a 1997 which is the same type of engine everything is the same. The only thing that would change would be the lower intake I believe as far as gasket because it has to be replaced

OR

If my heads cracked on the new one, can my old one with new gasket be applied to the new engine?
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Old 10-03-2013, 10:35 AM   #17
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Quote:
Is it possible to move the bearings from one engine to another if they are good in one engine
No it is not
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96 T/A, Black/Graphite Leather, T-Tops, 6 speed, 10 speaker Delco/Bose "Monsoon"
Original owner, 191k miles and counting.
Total engine rebuild at 187,020 miles.
AIR delete. Bored .030 over.
Comp cams Xtreme Energy LT1 266HR-14 street cam and springs..
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Old 10-03-2013, 10:37 AM   #18
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Man it sucks
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Old 10-03-2013, 11:30 AM   #19
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This 3.8 might have been hydrolocked, the prior owner had said it had head gasket issues, motor was pulled from car. Block split in half and broken rod.





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Old 10-04-2013, 11:09 AM   #20
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If it went into hydrostatic lock in then you have a problem. Chances are something in it is broken and it may turn over with the fluid out but it will not run right. Bent or broken connecting rods are common, I've also seen engine where it destroyed the valves and even destroyed the piston. Block damage is another problem that can occur depending on how bad it was. Either way chances are you are going to need to rebuild just to find out if anything is bent or broken and it's worth saving. I mean there is a chance nothing is broken but I wouldn't be surprised if you're gonna have compression issues if you can start it
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