2012 f150 3.5 platinum 4x4
I might hear piston slap but on an engine that new, I would think the noise would basically disappear when it got warm as clearances get tighter unless there were something broken. It's tough to diagnose when it's right in front of you but audio clips are really hard for me.
I am going to to pick up some proper sound equipment.
(( I have always been one to diagnose via sound, and this gives me a reason to invest in one the the audio kits that have multi location components.
I agree with you on sound clips being tough to hear what you are looking for.
I'm currently @ 431 miles. When I get home tonight I'm gonna be close enough to 500 that I'm gonna change the oil and see what we have to see.
( now from checking the dip sickle I've not seen a single spec of shiny, BUTTT💁♂️ we'll see)
As for the flywheel theory.
What type of damage would you expect to see that would allow this to make the deep hollow clatter sound @ only these very specific events/conditions?
This is the deal,
It feels, sounds, drives fantastic, the mileage is getting better each day.
And with only 10lbs, and no timing it feels stronger than my previous all out tune under the same driving conditions.
I'm on my 4th revision already and everything is spot on.
I've yet to go over 50% throttle and 4k rpm. Ok ok, I did push it to 4500rpm.once..., but in my defense , have you seen the parts list for this thing? It is begging me to flog it!!🤦🏻♂️😆🤣.
I also agree that this should be heard cold,
And then not so much once heated up,
And that's not the case.
This is just interesting.
Sometimes just collecting your thoughts in one place while getting the input from others really helps us to move forward.