This may belong under technical but posting here first. Moderator feel free to move. Want to display my restored fan and give a "shout out" to Mark Motshagen who did the work. Fan is from my '67 911S which can be seen elsewhere on this registry.

First two pics are of the fan as removed by RS Werks who are doing the engine rebuild:

Name:  002.jpg
Views: 1473
Size:  89.8 KBName:  003.jpg
Views: 1484
Size:  106.2 KB

I initially had the fan bead blasted which actually revealed how bad the condition was. You can see the condition after blasting in the picture below. This also shows the chip repair that mark did to one of the blades.

Name:  Tom Doig 011.JPG
Views: 1660
Size:  119.4 KB

The last three show the finished product. Picture makes it look like medtal flake finish but in person its not. Third picture below much closer to the finish. Sorry about my photography mark.

Name:  012.jpg
Views: 1446
Size:  52.1 KBName:  013.jpg
Views: 1461
Size:  68.0 KB