[ErrorMargin]

Originally Posted by 88911coupe

Thanks, I'll just remove the whole thing as suggested and take a thorough look at the backside.

For your reference, I created this thread with sources for new fan housings:

https://forums.pelicanparts.com/porsche-911-technical-forum/1158384-replacement-fan-housings.html

And here is a picture of one of the cracks in my fan. There were two other much smaller cracks that could only be seen in the right light. This is from an 84 Targa.