Pulling out Trackhawk's blower, any info/things I outta know would be greatly appreciated

[ThawkDwN_UnDEr]

G'day fellas, first time posting but been copiously reading this here forum which has been great.
I'm looking at/pulling off my Hawk's blower next day or so via engine hoist. Reason being upon few very concerning factors I went ahead and swapped out the spark plugs for ngk lfr7aix iridium and didn't exactly like the state/condition of all piston tops and cylinder walls utilizing my borescope camera.

Oil and shredded teflon coating from the rotors inside the blower also....remove the lid and yep traces of blow by plus sections of actual wet oil around the kid's gasket.
Really don't think there's much point in me doing a compression/leak down test as with a heavy heart I've come to realize I've unknowingly been recently sold a Trackhawk with the motor on it's way out and I just wanna see for myself how bad I've been screwed over 🫤

I would greatly appreciate it if you guys could chime in on amy pointers/things to look out for and be aware of when removing the blower.
And importantly whilst viewing the blower attached to the motor from above with the lid off of it I gently can wiggle the right blower rotor through the opening and it has a tiny bit of movement.....thats not meant to happen is it and what could be the reason behind it.
Thank u

 

[2ndgen]

When you say "blower making contact with the case" are you talking about in the rear--as in the rotors have been pushed rearward?
If so, this is usually caused by an overheating event on the front bearings--they get hot, expand, and the only way for them to move is rearward pushing the rotors back.
If you haven't torn up the rotors or casing too badly it can probably be repaired/rebuilt--but probably need to replace all 6 rotor bearings.

 

[ThawkDwN_UnDEr]

H

When you say "blower making contact with the case" are you talking about in the rear--as in the rotors have been pushed rearward?
If so, this is usually caused by an overheating event on the front bearings--they get hot, expand, and the only way for them to move is rearward pushing the rotors back.
If you haven't torn up the rotors or casing too badly it can probably be repaired/rebuilt--but probably need to replace all 6 rotor bearings.

Hey mate, I replied to your post with heaps of photos just awaiting "moderator approval" for it to come out online....

 

[ThawkDwN_UnDEr]

Here's a couple of pics of what came out in my wetcvac amongst the unburnt fuel/gunk/oil on top of piston heads through spark plug hole....😳
And a photo of one fresh outta cnc machined type looking engine cylinder....NOT smh 😫

 

[2ndgen]

Are you saying the rotor touched the /side/ of the case, near the front plate?
I think the only way that can happen is if one of the front bearings broke its cage--or the plate stretched from thermal expansion a lot in just one direction (far less likely--maybe not even possible?). If the bearing broke its cage and the rotor scraped the side of the case, I'd think there'd be a /lot/ of damage.
If the rotors touched each other, sometimes the damage isn't so bad--might get away with just a fresh teflon coating and new bearings, maybe some minor repairs to the case.

Opinion @16GoManGoHC2 ?