12HT, water in my cylinders? !?

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Vossie

Vossie

#thecrazycruiserman
10 Year
Joined
Sep 9, 2013
Threads
60
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1,496
Location
Harare, Zimbabwe
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Hi all

So I bought a 12HT that sat for years under a bonet not hooked up to anything. Tested it when bough, ran strong. Didn't have a radiator hooked up and only ran for about 45 sec at a time.

So I finally have it installed and I hooked up the rad and put in water ready to run it properly for firay time ever. Went to start it and nothing. Starter kicks in but can't turn over engine.

Then we see water leaking out by turbo pipes and out of the exhaust.

So I'm thinking water got into the cylinders some where . Any one have any ideas where or how the water might have got in. Checked the dip stick and can't see signs of water in the sump.
 
cracked head, or failed head gasket. worst case, maybe cracked block.

don't try to start it or run it until you have solved the problem. Turning it over with water in the cylinders could hydraulic the engine, bend conrods, damage pistons etc.
 
77cruiser77 said:
Cracked head maybe?

Did you try a compression test?
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78fj40mg said:
Comprised head gasket...period.
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mudgudgeon said:
cracked head, or failed head gasket. worst case, maybe cracked block.

don't try to start it or run it until you have solved the problem. Turning it over with water in the cylinders could hydraulic the engine, bend conrods, damage pistons etc.
Click to expand...

OK, I have all the injectors out and hand turned out all the water as well as getting some wd40 down the cylinders to stop any rust.

Where I think the problem might be is the turbo. When we filled the radiator, we had a leak by the one line at the turbo. Didn't think too much of it not knowing that it was in fact an oil line. I have since taken the turbo off and it does indeed look like water and oil are mizing in the turbo.

The reason I don't think it's the head is bc the engine ran fine before filling rad. All we did was fill the rad and from the very first attempt to crank the engine the cylinders were full of water. Which means they filled up slowly as we were filling the rad. Which explains why we felt it was taking a lot of water. So there was no opportunity for water to be forced through the head which is what would have have to happen in order to get that much water in cylinders 2, 3 and 4.

As a matter of precaution, I will of course pull the head and check. But I do believe the culprit to be the turbo.

Thoughts?
 
mudgudgeon said:
Are you saying you hooked up a water line to an oil line on the turbo?

If yes, it doesn't explain water in the cylinders
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No, I'm saying at the turbo where the oil and water lines come close together, I think the wall of the journAl dividing the 2 has been compromised and is allowing water into the oil system.

But areally you saying that this couldn't be the culprit?
 
Well, it is the head...

20161127_134531.webp

20161127_134917.webp

20161127_143416.webp

20161127_143416.webp

All water journals are badly blocked and looks like that caused the head gasket to fail

20161127_143535.webp
 
Yikes! What a bunk way to start your landcruiser adventures:( Keep your chin up and keep on wrenching.
 
whats the other side of that gasket look like?
in my experience, if the gasket has failed, you'll see some sort of stain between the water passage and the cylinder wall on the top surface of the block, or on the head.
I cant see any clear sign of staining there.
Maybe you need to keep an open mind and keep looking for other causes?
what condition are cylinder walls in?
was water in every cylinder?
 
roma042987 said:
make sure you replace the steel tubes as they can corrode through and cause a leak
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which steel tubes exactly?

mudgudgeon said:
whats the other side of that gasket look like?
in my experience, if the gasket has failed, you'll see some sort of stain between the water passage and the cylinder wall on the top surface of the block, or on the head.
I cant see any clear sign of staining there.
Maybe you need to keep an open mind and keep looking for other causes?
what condition are cylinder walls in?
was water in every cylinder?
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yes, everything is going to be checked just to be sure. the cylinder walls are in great condition. no rust, no staining, not even a ridge or any pitting. so thats a relief.
only cylinders 2 3 and 4 had water in and this only happened after filling the radiator.

mudgudgeon said:
is the first pic the intake ports?
if its failed head gasket, how did that get full of water?
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not too sure on this, but thinking at the moment is that this engine, against what the seller said, spent some time out in the elements and some how got water in the intakes. the exhaust ports are all free of any signs of rust or water damage.

one thing we noticed is that pretty much all the water jackets were blocked with crud, which may have contributed to forcing water where it wasnt supposed to go.

what im really hoping is that the cylinder head gasket is the culprit and since the cylinders and tops of the pistons look good, we just need to clean up the head, clear out all the water jackets, replace cylinder head gasket and hopefully we will have won.
 
sadam_husain said:
sorry to hear that mate I know you've been putting a lot of work into that engine swap
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yeah, its a bit of a bummer, tripped up at the finish line yet again. however, im actually glad it happened. bc now i can address the problem and then have an engine i can count and rely on
 
mudgudgeon said:
its a really good sign that cylinder walls aren't rusty
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yup, cant tell you how happy and relieved i was when we pulled the head and the cylinders looked clean

20161127_143530[1].webp
 
The cylinders are looking good but from the rocker gear you have water inside that engine pull the sump and check the big ends and mains as water will have been sitting in that engine.
 
ozcrusier said:
The cylinders are looking good but from the rocker gear you have water inside that engine pull the sump and check the big ends and mains as water will have been sitting in that engine.
Click to expand...

ok thanks. the dip stick shows no signs of water tho..?
 
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