Hydrolocked Motor?
#518424
11/07/09 07:20 PM
11/07/09 07:20 PM
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Joined: Jan 2003
Posts: 1,263
Southwestern Ontario Canada
racealittle
OP
pro stock
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OP
pro stock
Joined: Jan 2003
Posts: 1,263
Southwestern Ontario Canada
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A friend of mine added cold water too soon to his overheated 2000 Dodge Ram Van 5.9 engine.
I think he developed a crack somewhere. We eventually disassembled the motor in the engine bay to inspect it.
First he drained the water and oil from the crankcase. He did an optomistic oil change. Then he tried to run it. It ran like crap. He drained what was left in the block and rad. Then he removed the spark plugs and used a fixture to suck the water out of the cylinders through the spark plug holes with a shop vac.
The valve covers came off and evidence of water coming through the valve guides of cylinders 5, 2 and 4.
While removing the heads bolts I noticed a few bolts came off rather easily with no sound. We removed the heads and found 4 cylinders completely filled with water.
The fire ring on the head gasket was sucked in on cylinder #3 but it was a dry cylinder.
Cylinders 5, 2, 4, and 6 were really cleaned up well from water being in the cylinder. Cylinder #4 had ean extremely damaged rough ring around the top of the bore, just above the ringland. This damage was about 3/8 to 1/2 high and ran in a band around the cylinder. It was deep and protruding.
I think the motor is scrap.
Any theories of what else could be damaged?
Too many cars, too many parts, too little coin, too little space to work in, too little time left to make it all happen!
Update: down to one ride, still too many parts, a little more jingle in the pocket, gaining space, and it's going to happen this year!
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Re: Hydrolocked Motor?
[Re: racealittle]
#518426
11/07/09 08:42 PM
11/07/09 08:42 PM
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Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
dartman366
I Live Here
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I Live Here
Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
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Quote:
A friend of mine added cold water too soon to his overheated 2000 Dodge Ram Van 5.9 engine.
I think he developed a crack somewhere. We eventually disassembled the motor in the engine bay to inspect it.
First he drained the water and oil from the crankcase. He did an optomistic oil change. Then he tried to run it. It ran like crap. He drained what was left in the block and rad. Then he removed the spark plugs and used a fixture to suck the water out of the cylinders through the spark plug holes with a shop vac.
The valve covers came off and evidence of water coming through the valve guides of cylinders 5, 2 and 4.
While removing the heads bolts I noticed a few bolts came off rather easily with no sound. We removed the heads and found 4 cylinders completely filled with water.
The fire ring on the head gasket was sucked in on cylinder #3 but it was a dry cylinder.
Cylinders 5, 2, 4, and 6 were really cleaned up well from water being in the cylinder. Cylinder #4 had ean extremely damaged rough ring around the top of the bore, just above the ringland. This damage was about 3/8 to 1/2 high and ran in a band around the cylinder. It was deep and protruding.
I think the motor is scrap.
Any theories of what else could be damaged?
wouldn't it be easier to answer what might still be good?? sound's like you might have a boat anchor to me, sorry to hear that. 
Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.
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Re: Hydrolocked Motor?
[Re: emarine01]
#518428
11/07/09 11:16 PM
11/07/09 11:16 PM
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Joined: Jan 2003
Posts: 1,263
Southwestern Ontario Canada
racealittle
OP
pro stock
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OP
pro stock
Joined: Jan 2003
Posts: 1,263
Southwestern Ontario Canada
|
Quote:
The only way to figure out what you have is careful inspection & observation 
That's what I've been doing. I had to listen to his story, and make sense of it. I'm trying to help they guy since he needs the vehicle to work his construction/ home improvement business. He has helped me with my garage and other home related projects. He has even towed me to the track on occasion.
The heads show no outward signs of cracks. We used spot check by magnaflux. We also tried the spot check on that #4 cylinder wall.
It's so hard to get that motor out easy. I still have to check the deck surface of the block with the spot check. The internals of this engine are just cruddy, and coked. The truck worked hard daily. I also know the original owner of the truck and how it was taken care of. I'm surprised how bad this looks.
I'm certain the heads got lifted, but can't see any other signs of cracks other than that messed up #4 cylinder wall. The spot check is kind of useless on that section. At least I'm not sure how to interpret it with the blemished surface. It might hone out, but why if there is a crack in the block? The heads have to be warped, and perhaps the deck as well.
I wonder about bearings, bent rods, etc. The rotating assembly in the short block turns so easy. If the block is cracked I would like to have an idea where and just get on with it.
I know a reload with a good used 5.9 magnum would get him back in business. There is nothing on craigslist or kijiji locally. The worst part is we are working outside like shadetree mechanics with the leaves falling and colder weather coming.
Too many cars, too many parts, too little coin, too little space to work in, too little time left to make it all happen!
Update: down to one ride, still too many parts, a little more jingle in the pocket, gaining space, and it's going to happen this year!
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