Nope wasn't the flywheel, I pulled the motor, took off valve pans and oil pan and I've not seen anything out of order, except for a tiny pencil eraser size piece of metal stuck to the screen on the bottom the oil pick up tube.. Nothing seems to have any play in it, no signs of metal to metal contact anywhere.. I'm completely stumped..:/
I currently have the motor pulled, took off oil pan, and took off valve pans, I visually do not see anything out of the ordinary, no signs of metal to metal wear..
I've not taken the chain cover off, but looking down through on both sides, they too look fine.. Also before pulling engine, through data logging, and codes, I had no codes, and no misfires, engine ran smooth, aside from the noise..
I've got a borescope that I planned on taking a look with too, I've just been working a lot of hours lately, I've only been at it (pulling motor and such) for two days..:/ it's had this issue for the past year, and at first I was thinking flywheel, so I pulled the tranny, replaced everything from pilot bearing to throw out bearing and stuck tranny back in, and still had the problem..
Ya, even while manually turning the crank.. But I have the plugs out, so I'm wondering if I put the plugs back in on that bank from where I believe the noise is coming from, maybe with added compression I'll notice some play in the wrist pin.. I'll have to try that..
Nope, checked them, but I'm going to take my borescope and check the top of the pistons, it's easier than tearing it down and messing with timing.. Although I'd rather take off a head then the crank on this 4.6..
Ya I appreciate it, cause I think I'm just thinking way to hard about it.. Lol and when I do that, sometimes I over look the actual issue.. http://youtu.be/s-8JgJFLnZY
I didn't drive it like that, that last video done on the dark I recorded when I was first led onto the idea that it was the flywheel, I had it on jack stands ready to pull the tranny.. Lol and it wasn't as bad when it was in gear and at idle, hints why the wheels were turning..
Visually looking at the rods, pins, pistons, crank, etc, from the bottom end, looking up I to the cylinders, everything looks fine.. But there is definitely something going on with it..
Yeah . did you try to move all the rods by hand should be no play and make sure no play with piston either just sounds like its gonna be in that ball park
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