Coyote Oil Leak

[Railroad]

Well, it could be worse. I think I got my best and maybe last tune put in the Coyote. I had time to drive it and see how things felt, by a seat of pants test.
I had previously gotten a whiff of oil burning, but thought it was power steering fluid from my previous over fill.
After getting home and inspecting I saw wet valve cover bolts on the passenger side and the outside edge, 2 middle bolts. I followed the oil up to spark plugs coils on cyl 2 & 3. After removing the COP, both spark plug holes were full of oil. The top of the plug boot has a tapered rubber seal that should go inside the spark plug tube, both were deformed. I can see them preventing water getting into the plug tube, but should not be for oil control. I pulled the #4 plug and could see the seal in the valve cover, around the plug tube was more concentric and did not have oil on it.
Seems like I will be pulling the valve cover on a new hand build Coyote engine. I did not bother seeing who signed off as the mechanic building the engine.
I happened to have a new in the box valve cover with new plug tube seals already installed. Hopefully, I will be able to pull the valve cover and swap it.
I googled youtube looking for tips to avoid what occurred on my engine, no luck.
The only thing I can think of, is to lube the seals and make sure they are aligned as I push the valve cover down. I may post on a Ford site and see what comes up.
Ford help line is down, but their chat line is open, that was a waste of time.
A little shocked this occurred, but hopefully it will be an easy fix.
Will post the results later.

[Ducky2009]

Sorry to hear Joe. Good luck with the fix. Hopefully it will be an easy fix.

[Railroad]

I pulled the valve cover today and found the #1 cylinder plug tube also had oil in it. Not too much to pull the valve cover, unsnap some wiring harness and back out the captured bolts. Fortunately the passenger side valve cover is not too confined and it set out pretty easily.
I found 3 of the seals that press into the bottom of the valve cover unseated and loose or on the spark plug tube.
These seals can be bought separate from the valve cover, so they can be pressed into a seat on the bottom of the valve cover. The 3 leaking seals either did not get pressed into the cover or the cover was dropped and they became unseated.
The builder might have put the seals on the plug tubes and put the valve cover over them hoping it would not be an issue.
They do need to be pressed into the cover.
As previously stated, I had a new passenger side cover in stock. The only thing I had to do was transfer the PCV tube connector from the old cover to the new. It installs like an oil fill cap, turns to a notch.
I lubed the spark plug tube seals and the 2 cam sensor pickup seals with some syn oil. I put a dab of silicone on the timing cover/head mating joint on the gasket. The cover set on with no issues and all the bolts started without issue.
I included some pictures that should be easy to relate to what I did. The one thing, I did not mention today, the COP boot has a seal on the bottom, that keeps outside water from entering. The rubber as deformed, but I was able to get it inside the plug tube. The pics will explain a lot of what I am saying.

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[Ducky2009]

So, wasn't too painful. Good work fixing, and sharing.

[dbo_texas]

Just found this older thread. I need to do some investigating on my Gen2 Coyote as I seem to have an oil leak from somewhere on the passenger side but I'm not 100% sure where it's coming from yet. Only happens when I build up oil pressure, then I can see some small oil spray on the PS footbox panel. Has only happened twice (so far). I will remove the coil cover and see if I can see any wet spots like you indicate. Hoping it's not coming from underneath the actual valve cover. This gives me a place to start looking...

https://thefactoryfiveforum.com/attachment.php?attachmentid=216482&d=1752793339

[Railroad]

Could be A/C compressor oil?

[dbo_texas]

Could be A/C compressor oil?

No A/C in my setup but I do have the FFR heater. Now that you mention the coolant hoses to the heater core are right above where I found residue. I'll double check those connections on the heater but I'm pretty sure it's engine oil and not coolant.

[Blitzboy54]

That's pretty weird. It looks like a splatter pattern but lines up with the bellhousing? Unless it's squirting out the back of one of the heads I'm at a loss.

[dbo_texas]

Yeah squirting out the back of the valve cover was my first assumption. I'm going to remove the coil cover and see if I see any obvious wet spots. I may need to have a friend watch it while I hit the gas and see if they can identify exactly where its coming from. Not the easiest spot to get a visual with the heater + plumbing in the way.

[nuhale]

These covers are plastic with a built-in seals. Pretty easy fix. Re-seating the cover is not a big deal and seal kits are not expensive. Maybe consider using some UV dye and locate the source a little easier. I'm guessing could be the cover but could also be a leak in the CMCV or other pluming back there with the PCV pulling in some oil mist. I have a gen2 service manual and happy to share the pages on replacing the seals if you need.

[dbo_texas]

These covers are plastic with a built-in seals. Pretty easy fix. Re-seating the cover is not a big deal and seal kits are not expensive. Maybe consider using some UV dye and locate the source a little easier. I'm guessing could be the cover but could also be a leak in the CMCV or other pluming back there with the PCV pulling in some oil mist. I have a gen2 service manual and happy to share the pages on replacing the seals if you need.

Yeah that would be great if you could share the service manual pages for this. I'll shoot you my email via PM.