Simply judging by your dedication to this 6.4…you would have to be about the best kinda friend a guy could ask for . If you haven’t given up on that old girl with all of the problems you have had you surely wouldn’t give up on a friend!! God bless!!
Very nice to see a Godly man on RU-vid. I run a 6.0 and really like it. My engine is stock. I did put a power board in my FICM other then a ICP sensor I have don nothing but service it. Praise God 😇🙏
I HAD AN EXPERIENCE WITH A 3116 CAT IN A CHEVY 1 1/2 TON ROLLBACK WRECKER! A FRIEND WAS WANTING TO BUY IT AND HAD ME CHECK IT OVER! WE HAD TO PUT A PRIMARY AND SECONDARY FUEL FILTERS ON AND THEN IT STARTED AND AFTER RUNNING ABOUT 30 SECONDS, TRIED TO OVERSPEED! FORTUNATELY I WAS CLOSE TO THE KEY AND SHUT IT DOWN! CHECKING FURTHER WE FOUND THAT IT HAD VERY HEAVY BLOW-BY, AND THEY ROUTED THE BLOW BY INTO THE AIR FILTER BOX! ONCE STARTED THE BLOW BY CAUSED THE OVER SPEED!! MY FRIEND WISELY DECLINED TO BUY THE TRUCK!!
Wise choice! You were lucky the key shut it off. I have heard of people being fast enough to throw a board over the intake. I have also heard of people being seriously injured from not getting away. Mine happened so fast the truck was still rolling when the engine blew.
For what its worth I believe another thing that can cause the seals to have issues is if there is substantial pressurization of the crankcase, or there is a restriction in the oil return. If there's a bunch of pressure being built up there it can cause oil to start bypassing the seals since the dynamic seals are just there to keep the oil in, and not hold back any sort of substantial pressure. Edit: Seeing the instability in the head gaskets leads me to suspect that it may have been the compression leaking into the crankcase that pushed it over the edge. I would say the outright torching of the block happened during the runaway, but the head gasket could have been compromised there to begin with. Looks like you have put studs in it, but maybe the gaskets were still having sealing issues.
Pretty sure mine was oil and diesel from PCV condensed in the intercooler. My air filter was so bad the engine had nowhere else to get air from. Fortunately, I got it running and I have 1-2k miles on it now.
@@barntech2291 Good to hear its going again. Surprising about the PCV as there is usually a one-way valve in there to prevent excess airflow. This would also be moot if there are substantial air leaks in the crankcase since the fresh air side is generally not restricted. But diesels may be quite different. Still maybe a good reason to have an external catch-can and restriction to stop it from being a source of air for the engine?
@@barntech2291 Although having a diesel under substantial manifold vacuum brings up some interesting questions since they are not normally made to have the pressure go the other way. In cars usually the intake valves need to have substantially better guide seals to stop it from pulling oil in under vacuum.
@mysock361C I am going back and re-reading your comment with the latest edits and I like your theory! The first time I torqued the head studs as much as my torque wrench would go. I figured that was well over the factory spec so it should be ok. After the engine blew I called ARP and they said that won’t put enough preload on the gasket due to the hardness of the studs. Looking back at the video, I had evidence of leaking on all of the outboard cylinders. If one of the cylinders was leaking into the crankcase the excess pressure could have pushed a bunch of oil past the turbo seals and caused the runaway. Then came the hydro lock, catastrophic head gasket failure and burning antifreeze. The next time I rented a bigger torque wrench and torqued the studs per ARP specs. Still running strong after about a year of daily driving!
@@barntech2291 Yeah I don't know how much they can tolerate pressure-wise, but I don't think its much since the bearing is basically just needs an oil bath to stay lubricated, and thereafter it drains back to the crankcase. And yeah some of those studs take insane amounts of torque, esp. since they have a fine thread if I recall, and there are only four per cylinder, which is not a lot for a diesel. I think it was something like 200 ft-lbs. or even a bit more. Anyhow glad to hear its still running well! 🙂
Static lock blew the head gasket. But where did the engine get excess oil to run away on and static lock, blowing the head gasket? The turbos are the only source. Pressure test them, I bet you find one of them blowing oil into the intake.
At first I thought the same thing. I couldn’t find anything wrong with the turbos though. I am convinced it was sucking oil through the low pressure turbo due to a clogged air filter. I finished rebuilding it (again) and I have been driving it for two weeks now with a new K&N air filter. There isn’t a drop of oil in the lower charge pipe. So far so good…
It was really old. The guy I bought the truck from sold his cold air intake. I found the original intake in the back and figured I could run it for a few days until I could get a new filter. BAD IDEA!!!
Don't forget the crank case decompression system, which directs engine blow by back into the air intake. Oil mist can carry over from the crank case breather to the air intake. If it's NOT the turbochargers, that's the only other possibility.
The anti-freeze getting into the cylinder could explain the run-away, but, it does NOT explain how oil can get into the intercooler. The only possibility is carry over, from the crank case decompression line into the intake. Other than that, the turbo center bearing seal is the only explanation. I had it happen in my Volkswagen diesel Rabbit, which was normally aspirated. I made a separator for my crank case decompression system out of an old anti-freeze jug, to separate the oil mist out of the blow by gasses, and never had the problem again. (no turbo, no intercooler)
I think the runaway was burning oil but after the head gasket blew it burned some antifreeze. I like your “catch can” idea, that would have proven whether the oil was from the crankcase or from the turbo, but since I rebuilt the engine and replaced the air filter it is running great so I guess we will never know.
Yes. If the turbos are not building boost they will spew oil into the intake. My turbos were in perfect condition but the dirty air filter created a vacuum in the low pressure turbo. That’s my theory, anyway. Same turbos with a new K&N filter have been running for two weeks now without a drop of oil in the intake.
You realize that Ford designed a self destruct style emission system, right? To clean the soot from the DPF , Ford , in all there brilliance, thought that dumping vast amounts of fuel in the rear 2 cylinders every so often, would get the DPF glowing hot & burn off the soot... Never mind what it does to the cylinders and oil... ya don't need oil in the cross hash, and diluting the engine oil with diesel is great for a long engine life... interesting fact>> the military used the 6.4 successfully. the only difference was, THEY DIDN'T RUN THE >DPF< EMISSION DESTRUCTION SYSTEM. (NO SMOG)... imagine that, without the super soaker smog system, no issues.. They make a ecu add on that stops the diesel hose down from happening.. I guess after 100k miles, the rear cylinders are glazed and burning oil with low compression.. Did God allow Ford to be used as a tool to test our patience and resolve??? Q: does your windshield leak water into your fuse box like mine and thousands of other super duty's ?? It's only a issue with trucks from 1999 to 2015 or something. after 20 years of leaking, they probably thought about bringing it up to cooperate to see about a fix.
Regarding the flammability of antifreeze, on its own it does burn. I've tossed old, contaminated bottles of antifreeze concentrate into the outdoor stove and it burns quite nicely. But in an engine with 50% water, it will be self-quenching to a good degree. Also, if the exhaust smoke during the runaway was thick, grey, and ashy looking than that's going to certainly be oil. Edit: And the combustion temps during a runaway on lube oil will easily melt components since the engine is consuming fuel in an uncontrolled manner. Just a peek over at the adjacent YT feed shows this old video of a runaway where it ate thru the head gasket a short way in. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-MZOdHMKo8Cc.html Lots of cylinder pressure and heat during a runaway situation.
Fortunately, mine stopped when cylinder #1 hydro locked on oil from the intercooler after about 10 seconds. At least that left it rebuildable. That other guy's engine was toast.
I am still plugging away at a bunch of things on my truck, but after driving it for a year I am convinced I made a good investment. Much better than spending $100k on a new truck!
