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I don't have the right tools or know how (yet) to do this all myself. Took it to my regular diesel mechanic. And Yes, the engine out of the truck and being worked upon.
A few questions regarding the things you are planning to replace ....
Are glow plugs and glow plug harnesses on your list to replace?
Is a new OEM IPR on your list?
How about cam and crank sensors?
I realize that they may not be bad, but then you have some spare parts!
Also, I gave always wanted to have a return coolant flow from the back of the heads to the degas bottle. Doesn't need to be much, and it can even have a valve on it! Others may have strong feelings on this either way, but I just can get it out of my head that it could help a bit in cooling.
A few questions regarding the things you are planning to replace ....
Are glow plugs and glow plug harnesses on your list to replace?
Is a new OEM IPR on your list?
How about cam and crank sensors?
I realize that they may not be bad, but then you have some spare parts!
Also, I gave always wanted to have a return coolant flow from the back of the heads to the degas bottle. Doesn't need to be much, and it can even have a valve on it! Others may have strong feelings on this either way, but I just can get it out of my head that it could help a bit in cooling.
Glow plugs - Yes. New Motorcraft parts bought from Rockauto. Will retain old ones as spares
Glow Plug harnesses - Yes. Motorcraft harnesses bought from Tasca parts. Will retain old ones as spares
OEM IPR - On order from Riffraff. Hope to receive it early next week. Will retain the old one as spare.
Cam & Crank Sensors - On order from Rockauto. Hope to receive it early next week. Will retain the old one as spare.
Coolant return from the back of the head - I had not planned on this. will have to look into it.
A lot of this is preventive maintenance. Since the engine is coming out for work, I am having almost all of the potential problematic parts replaced. I am praying that this is a pay once, cry once situation, and that I get many years of reliable service from this vehicle.
Probably most people will tell you not to bother with the coolant lines at the back of the heads (the heads have to be drilled to add the ports). That is just an interest I have always had, and I regret not doing it when the heads were off. If you do take time to research it, I would love to see you post your thoughts on it.
Probably most people will tell you not to bother with the coolant lines at the back of the heads (the heads have to be drilled to add the ports). That is just an interest I have always had, and I regret not doing it when the heads were off. If you do take time to research it, I would love to see you post your thoughts on it.
A few questions regarding the things you are planning to replace ....
Are glow plugs and glow plug harnesses on your list to replace?
Is a new OEM IPR on your list?
How about cam and crank sensors?
I realize that they may not be bad, but then you have some spare parts!
Also, I gave always wanted to have a return coolant flow from the back of the heads to the degas bottle. Doesn't need to be much, and it can even have a valve on it! Others may have strong feelings on this either way, but I just can get it out of my head that it could help a bit in cooling.
Wouldn't this just reduce the amount of cooling to the front of the cylinder head?
I'm not looking at much flow, just enough flow to ensure that no vapor bubbles form in the back of the head.
Is that a known common thing? I would think with all the turbulence of the coolant making the turn coming out of the block that would be the last place for bubbles.
What I think and what i know are sometimes two very different things.
This has been discussed a bit on other forums. I'm not really the one to ask. I will say that the concept is probably more about mass flow than laminar or turbulent flow. We do know that "skin temperatures" can get high in those coolant passageways. Some heads were (maybe still are) available with the ports already installed. If I can find some of the old discussions, I'll post the links.
This has been discussed a bit on other forums. I'm not really the one to ask. I will say that the concept is probably more about mass flow than laminar or turbulent flow. We do know that "skin temperatures" can get high in those coolant passageways. Some heads were (maybe still are) available with the ports already installed. If I can find some of the old discussions, I'll post the links.
I thought Jack did this along with the ton of other things he did on his engine? Jack doesn't do things (IMO) without some reasoning behind it - perhaps he'll see this and weigh in...
Yep, I did. When my second Mac's hard drive went out like the first, it messed up another set of videos I was working on. I'm starting to think God doesn't want me to make videos anymore....
That video included a lot of information, including my theory, nucleate boiling, etc. My objective was to remove the air bubbles that can collect at the back of the head, even if the system is vacuum-filled. the tubing was minimized not to compromise coolant flow through the heads. I need to have time to fill in the blanks from an earlier version. Several long videos were corrupted.
Anyway, here is the early version that I shared with only a few people. No narration either. I just changed it from private to unlisted, but it will go dark, maybe in a day.
This version is from July, 22. It takes me a long time to complete a video, even without hard drive failures.
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.
