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head gasked or

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Old Nov 7, 2010 | 01:39 AM
  #1  
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head gasked or

Had a bad day yesterday, truck was empty cruising down the highway at 55-60 when I heard what I thought was radio interfearance , turned down the radio and it was still there, kind of a squeak. Sounded like it was coming from the dash when i then heard a metal type clunk. white smoke and now the motor is locked up.

Would there be a sound as I mentioned as the gasket lets go or am I screwed?
 
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Old Nov 7, 2010 | 02:58 AM
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pull some glow plugs and crank it over and see if anything comes out
 
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Old Nov 7, 2010 | 08:09 AM
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How many miles on the engine....... Do you use SCA's supplimental cooling additives in the anti freeze and check them with test strips regularly.

It could be cavitation or a head gasket..........
 
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Old Nov 7, 2010 | 02:41 PM
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It is very hard to diagnose a sqeak on the net, but sqeeak, clunk and locked up at highway speeds sounds way deaper than just a headgasket to me.
 
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Old Nov 7, 2010 | 07:36 PM
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Originally Posted by starmilt
It is very hard to diagnose a sqeak on the net, but sqeeak, clunk and locked up at highway speeds sounds way deaper than just a headgasket to me.
X2. Sounds more like bearing failure with the description.
 
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Old Nov 7, 2010 | 08:18 PM
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uh oh.
i guess first thing to do is inspect the coolant and oil.
i wounder if she pumped her base full of fuel and spun the mains.
the best course of action is to simply stop and shut her down.then inspect things before continuing on.
 
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Old Nov 9, 2010 | 08:58 PM
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unsure of the miles, could be 330K 440k etc......

Pulled the glow plugs tried to crank er over by hand and was unable to get a budge with a 18" breaker bar.

Put an add out looking for a replacement engine and might have a 6.9 for $450. ?????
 
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Old Nov 11, 2010 | 05:39 PM
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So I found a 6.9 with unknow miles for $450 an I think Im going to grab it and do the swap.

Winter months I work where I can get a steep discount or should I say cost plus a small % on auto parts so while the engine is out and Im replacing all the gaskets, should I also pull the heads and replace the head gasket or should I leave well enough alone?

Now if I could only find a zf5.......
 
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Old Nov 11, 2010 | 05:54 PM
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From: Mi'kma'ki
grams did you find anything in the oil of the blown engine?
do you mind answering PLC7.3's question about coolant additives?
could you pull the fuel pump and inspect it for a ruptured diaphragm?
how many miles were on this engine? edit.oh sorry.i see 330-440k miles ( i guess that's hard to complain about. )
thanks for answering these questions,if you don't mind.

when buying a used engine with high miles,the first thing you want to do is check for compression before buying.
 
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Old Nov 11, 2010 | 06:20 PM
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When I pulled the dipstick it was way over full and not from me overfilling the oil, I was strange that the oil was thick and didnt smell like fuel.

Ive only had the truck for one year, have not done anything with the cooling additives nor have I ever checked them.

I have a rental spot for my truck and trailer a mile from my house and had the truck towed there as I didnt want her in the driveway until I knew what I was going to do with it, My assumption is that its locked up since I was unable to turn it over with a breaker bar.
Maybe I should take some time pulling this block out/apart first.

The engine in question was pulled because the owner found a wrecked truck with 30000 miles on a jasper rebuild. Stated that all was good with the engine but........
 
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Old Nov 20, 2010 | 07:46 PM
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Finally got around to pulling my engine,

Pulled the drain plug out came antifreeze, Dropped the oil pan and had metal chunks and half of a rod.

So How the hell am I going to get the TC of of the flywell if Im unable to turn the crank? Will I have to drop the Crankshaft?

anyone with a low mile 6.9 or 7.3 within in 250 miles of Fargo ND
 
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Old Nov 20, 2010 | 08:40 PM
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Someone correct me if i'm wrong, but i don't see why you can't pull the motor with the torque converter still attached to the flex plate. Just pull it off after and put it back on the trans. It'll make a mess though...

When you put the TC back on the trans, make sure you're turning it to be absolutely sure it's fully seated. Once the splines/tabs line up it should slide all the way back and stop.


Just my $.02
 
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Old Nov 21, 2010 | 12:09 AM
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I pulled the motor and trans as one, removed the trans from the tc which is "bolted" to the flex plate. I think that you can only access the tc bolts when they are positioned on the bottom or down side, or is there enough room for a socket between the block and flex plate???
 
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Old Nov 21, 2010 | 01:51 AM
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Originally Posted by grams72
I pulled the motor and trans as one, removed the trans from the tc which is "bolted" to the flex plate. I think that you can only access the tc bolts when they are positioned on the bottom or down side, or is there enough room for a socket between the block and flex plate???
With the dust shield removed, you will be able to access the nuts one at a time to the left side of the engine. Once one is removed you turn the engine over to align the next nut for removal.
 
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Old Nov 21, 2010 | 07:40 AM
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Crew, he said it's locked up...

grams, looks like you might have to drop the crank... Just don't drop it on your foot.
 
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