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Second: These trucks have the biggest radiator I have ever seen on a pickup. If there was a problem it was that the radiator was not restricting flow enough, hence adding a flow restriction.
I didnt know radiators where supposed to restrict flow???
Who said water pump failure???? Dude read what I wrote...
It doesnt matter to me either way. I figured I would throw this info out there incase the gentlmen with the broken engine didnt know, is all
A bit of cavitation would not lead to massive over heating problems - especially in a closed system. Any bubbles would just go upto the top of the radiator and into the degas bottle. Cavitation will however lead to water pump failure, in the form if seals, bearings, and impeller blades.
Originally Posted by Mustang6147
I didnt know radiators where supposed to restrict flow???
He is saying that the radiator is so massive, its hard to believe it could restrict the flow in anyway.
I didnt know radiators where supposed to restrict flow???
Not saying they should...just saying in any case the statement made by the tech makes no mechanical sense either way.
Originally Posted by Mustang6147
It was supposed to be a great engine. I think it will ultimatly lead to the divorce of Ford and Navistar.
Bold prediction to make considering Ford already ended the relationship prior to the 6.4 coming out and have been designing their own in house engine scheduled to come out in the next year or two.
As far as I can tell it is a great engine. The story is right there in the way the 'issues' stories come out. The great majority of the 'problems' brought to light on the forum are by people who heard from a tech or a tow truck driver or some guy how bad they are...very few are from people who actually have the problem themselves. Now there have been issues for sure, but if you come on to a forum and make posts about a "well known" problem that causes overheating and dropped valves that no one has ever heard of be ready to back it up with some sort of evidence other than 'a tech showed me a part' that was the fix to the problem.
One thing that ford needs is an inline 6 dohc diesel. or at least a sohc. years ago when they had dealings with yamaha and the SHO motor, everyone thought it was going to be that way 4ever. Ford buys motors, learns what it needs to, then builds them their way. kind of like microsoft if you think about it.
I took 2 cylinders out of my 7.3 in SD and ended up buying a 6.4 in order to get home with toyhauler and family that truck gave me real problems so bad ford took the truck back and paid me everything back including interest. A quick list of problems bucking while towing, regen every 150 miles towing or not great for mileage as you all no, exhaust leaks, DPF cloging and taking out primary turbo, what a shame the truck looked great.
In the last picture it looks like two valves were hitting the piston on the back cylinder. Is that the one that dropped the valve? Did they put in a new engine yet?
I took 2 cylinders out of my 7.3 in SD and ended up buying a 6.4 in order to get home with toyhauler and family that truck gave me real problems so bad ford took the truck back and paid me everything back including interest. A quick list of problems bucking while towing, regen every 150 miles towing or not great for mileage as you all no, exhaust leaks, DPF cloging and taking out primary turbo, what a shame the truck looked great.
Maybe I am just from a different school of thought. Nothing in life is perfect. I bought a brand new Craftsman drill that died the first time I used it. Sears replaced it and I just look at it as "I was unlucky and got the one bad one of the batch". Now if every craftsman tool I bought was bad then sure I would declare it a bad product and switch brands.
I had a 6.0 that blew both HG's, lost 5 injectors, EGR cooler, CAC tubes, and more which all happened in 7k miles. However I dont declare that all 6.0's are bad because LOTS of them dont have problems.
Statistically speaking its easy to compare. Check out NHTSA and BBB complaints for cold hard facts. Last I checked it the 6.4 has less complaints than the new cummins and not even a tenth of what the 6.0 had.
These trucks are a complex piece of machinery and just like TV's, computers, electric drills, and cartons of eggs, its impossible to hit perfection. To me it boils down to how common a problem is (if 50% of the trucks have the same issue then its more than occassional glitch in the system) and how the problem is handled. So long as the manufacturer owns up to their responsibility Im not sure what else you can expect from them.
BTW, my point is not aimed at the person I quoted, I just used his quote because of the problems mentioned.
Maybe I am just from a different school of thought. Nothing in life is perfect. I bought a brand new Craftsman drill that died the first time I used it. Sears replaced it and I just look at it as "I was unlucky and got the one bad one of the batch". Now if every craftsman tool I bought was bad then sure I would declare it a bad product and switch brands.
I had a 6.0 that blew both HG's, lost 5 injectors, EGR cooler, CAC tubes, and more which all happened in 7k miles. However I dont declare that all 6.0's are bad because LOTS of them dont have problems.
Statistically speaking its easy to compare. Check out NHTSA and BBB complaints for cold hard facts. Last I checked it the 6.4 has less complaints than the new cummins and not even a tenth of what the 6.0 had.
These trucks are a complex piece of machinery and just like TV's, computers, electric drills, and cartons of eggs, its impossible to hit perfection. To me it boils down to how common a problem is (if 50% of the trucks have the same issue then its more than occassional glitch in the system) and how the problem is handled. So long as the manufacturer owns up to their responsibility Im not sure what else you can expect from them.
BTW, my point is not aimed at the person I quoted, I just used his quote because of the problems mentioned.
Cap: how do I use the NHTSA and BBB to compare 6.4 complaints against other brands and vintages? Can you send me directions or a URL?
Well sorry it took me so long to finally tell you the ending but I have just been swamped with stuff. So from the beginning. As we were pulling our 15 K trailer up a long grade in Oregon headding to Riffraff Diesel Tech day we pulled over at the top to cool off and one of our friends noticed that we ripped off the tread on one of our trailer tires when I got out we heard this loud tick tick tick tick. WTF we thought but we just went on so fast forward about 4 hours and were going down the road and in the display center it says to pull over at a safe place so we were like what? Pulled off the free way came to a stop and it turned off So after an hour it decited to start and we moved off the road. So we decided to dump the trailer and had to wait for a 6.0 to come pick it up. So we drove it the rest of the 3 hours to the farm just fine. In the morning we took it to the dealer ship and then they were playing with it for about an hour and came in and said the we had a major motor problem Great about 600 miles from home and its dead. So they settle on a valve that dropped and was smacking pistons. So it takes them a month so in the mean time we have the 7.3 come up and we take a perfect to Tennessee with Riffraff Diesel performance. Come back to a new short block so i asked what caused 2,000 EGT's and they said well ummmmm we don't know so that kinda ticked me off they have no idea. So I get it back and I am looking for leaks and that night I was sitting idling for about an hour get out and look and I see this massive puddle of fuel So in the Am I take it back. They fix it and I get it back again and then I find 2 more oil leaks and take it back the next day. So on Friday I go to get it and while I am driving away the a/c goes out and it starts smoking like a freight train so I bring it right back and they say that it's just carbon burn off? What its a brand new engine where is there carbon. So I make him look harder and we find oil coming out of there the down pipe and the DPF meet. So he then finds a big oil leak comming out of one of the turbos and oil is just pouring down the pipe into the DPF and cat. It filled the DPF and CAT up to the point where he poked a whole into the DPF and oil came out. So what they finally said that caused the whole thing was the oil coming from the oil leak plugged the DPF and cause High heat and back pressure witch cause the valve to drop. So ya that's it in a nut shell lol.
All I can say is wow. But, where does that amount of oil get into the exhaust? Seems like it would burn up if it want through the cylinders. So I guess in through the turbo some way after compression. That's just amazing. I take it you're OK with the final results from Ford. Sounds like they had the truck for a long time though.