Unlike the questionable material in this post https://www.northamericanmotoring.co...on-chunks.html

I actually have teflon chunks (slabs) in my intercooler. Also I blew a yard blower through the J pipe/supercharger and slabs came off. (And interestingly, the scroll gears and pulley moved with the air from the blower) I can see the coating missing from the scroll gears. I blew backwards through the intercooler and it seemed to clean up.

same questions:
am I now on borrowed time with this supercharger, replace it ASAP (which I wont do since this is a low-budget R53 rebuild) or it will last a while longer maybe just not as efficiently. There is no noticeable noise coming from it

 

 

 

There was oil on both ends. Came out color of light molasses and viscocity of w30

 

YOWZA!

That is pretty scary looking.

Apparently the earlier M45's used an acrylic plastic coat?



Site where image came from:
http://www.thehighspeedlab.com/eaton-rotor-coating.html

Also shows later version M45 rotors with interference-fit abradable coating which is usually called teflon by most people.

I was alarmed by the severity of loss you posted and bounced around reading a few things,
lots of forum posts on the topic:
https://www.google.com/search?q=m45+..._AUoAHoECAEQAA

If I were in your situation of low-budget build, I'd just clean up the mess and possibly try to remove all the coating I could, then just run with it until I could find an 05-08 junkyard M45.

 

GREAT find! Thank you! I like your idea of cleaning them up tough that would require taking them out and 1) I don't know if what I couldn't get off would flake later anyway and 2) I'd likely disturb the gaskets/seals which I don;t want to buy..

I'm inclined to put a mesh screen on the intake side of the Intercooler to keep the flakes out of the intercooler and check the screen periodically.

 

wow never seen that on the early ones. yep, remove it and find another charger or get an upgraded charger aftermarket.