Looks like its had trash running through it.
3.5 Ecoboost cam lobe wear?
- Thread starter Soliyou
- Start date
What oil and mainly what viscosity?
OVERKILL
$100 Site Donor 2021
What does the other head look like?
That's doesn't look good. Do all of them on the intake side look like the one in the picture or only that one?
If it's only one and the bearing diameter is within spec, perhaps it could be polished up?
If it's only one and the bearing diameter is within spec, perhaps it could be polished up?
Amsoil signature series 5w-30 since new.... However, I don't think it has anything to do with oil quality.
It looks like a design defect that was corrected on later designs.
Yeah, that sucks. Likely out of warranty. Is it worth contacting Ford?
Yeah, that grooving looks bad. But no trash... always clean oil and good filter @5K miles.
I am have not checked yet, but last night when I removed the caps and saw the discoloration (heat generated) and grooving on the intake cam compared to the exhaust, I got depressed, took some pictures, and left it alone.
I am sure the other intake cam will be similar or worse since the phaser on the other head is completely destroyed.
Not public, that I know of
Yes and No.
They released a software patch to address the issue (at least that's what I thought). The letter said they will void the warranty if you don't get the software update.
Then they offered a pro-rated warranty but restricted the time frame till 2023.
Thank you for the suggestion. If the damage is due to maintenance issue, this may work. However, I am pretty convinced it is head design issue. This will happen again soon if I don't change the head.
OVERKILL
$100 Site Donor 2021
Any oil pressure issues with it? That cam is trashed, and the bearings have definitely eaten material, but you mentioned discoloration, which points to a lack of lubrication. This is all very concerning and requires some root cause analysis IMHO, which of course involves taking a peek at the other head to see if it's equally trashed.
Thank s for the suggestion. That is what I will probably do.
Do you mean lower end bearings or cam towers? I am hoping the bottom end is OK. The engine was still running fine except for the cam phaser rattle and some lifter noise.
OVERKILL
$100 Site Donor 2021
The cam bearings are pretty marked up (eaten stuff). Since the engine doesn't really have "lifters", just HLA's to keep the slack out of the roller followers, I'd again be concerned about oil pressure (and delivery). What was the oil pressure like? If the cam bearings are chewed up, it's likely the rod and main bearings may be as well, this is a bit of a Pandora's box here.
I wouldn't put any parts in that until the cause of the oil starvation has been found.
Have you pulled the valve timing solenoids? no debris in there?
here's a teardown of a 2nd gen 3.5 ecoboost. similar, but less extreme damage on this one. had water in it were oil should be.
Have you pulled the valve timing solenoids? no debris in there?
here's a teardown of a 2nd gen 3.5 ecoboost. similar, but less extreme damage on this one. had water in it were oil should be.
I've never heard of excessive cam wear on a 3.5. this is a new one for me. I've seen some of the first gens in older vehicle with hundreds of thousands of miles that were having phasers and timing done. They were maintained the exact same way and the cams and journals looked brand new.
More pictures would be great, but it does sound like a lack of lubrication/starvation issue. In which case, even changing the whole head may not help.
