Trying to find in the Tech Files about it, maybe I over looked it....Would some one point me in the right direction..

 

I don't think there is anything in the tech folder on hydro-locking. Basically what happens is coolant gets sucked into a cylinder and when the compression stroke starts it can't compress, so the piston stops and this locks up the engine. Sometimes it also blows the head gasket, sometimes the head gasket blows first and is the source of the coolant that gets into the cylinder. More often, the EGR cooler fails and coolant gets into the intake manifold from the failed cooler.

One way to check is to pull out the EGR valve and look for traces of coolant in the passages. In your case, your engine is already not turning over, so step two is to pull the glow plugs as the easiest thing to do to let the fluid that may be in one cylinder compress.

Brian

 

What is course of action if is that is the problem....

 

You should keep one thread on your subject matter. You have three or so going on similar things, If you kept it in one thread people could follow your issue a lot better. Maybe this will help Check out this video on YouTube:



Sent from my iPad

 

If the engine was/is hydo-locked, your first step is to clear the lock - which is the take out the glow plugs, turn it over by hand to see if it turns, then spin it on the starter to blow out the liquid. Step two is determine what the cause was - blown EGR cooler or head gaskets. Step three is see if it runs even a little bit or if the engine is toast - hydro-locking at speed can easily break a crankshaft or bend a rod. Step four is fix what the root cause was, probably EGR, oil cooler, head gaskets anyway, and see what you got. But - it might not be hydro-locked at all, it's just a possibility. Usually I think they telegraph that they have a problem of some sort with overflowing degas bottle, using a lot of coolant, maybe overheating, before you get to the point where there is enough coolant coming into the combustion chambers to lock it up. You would have probably had a lot of white smoke from burning coolant before you got close to locking it, at 60 mph. I personally think it's a bottom end problem or something else mechanical, if it's really hard locked. Usually if it's hydo-locked you should be able to make the engine turn backwards with a wrench on the crank pulley.

Brian

 

Make sure once the glowplugs are out that you try to verify which cylinders have the coolant/fuel in them as this can help you narrow the problem down.

 

Some good advice above ............................

 

I think this may have been my problem....No what do I do?

 

If the engine isn't locked then empty the cylinders, rering the injectors (replace if necessary) and go again.

 

Everybody says turn by hand to see.....exactly how you do that????

 

If you have the Glow Plug's/injectors out, put a socket and ratchet on the harmonic balancer bolt and turn it.
From the look's of that injector, I would say you at least found the problem cylinder.

 

It turns by hand,,,,wuhoooooo

 

Spits diesel every where too.... It turned easy, though

 

This motor just shutdown while driving @ 60mph?

 

assuming nothing bent or broke inside, you still want to make sure the seat in the head for the injector is clean, undamaged, and you use a new copper seal