Images of 10A Apex Seals

Theses 10A apex seals back in the day were almost indestructible. Look how thick they are, instead of the normal FD 2mm, they were a massive 6mm. Normally when you find 10A Rotors, and Housings the housings are generally in good condition with the apex seals.  Because of the large apex surface it is easy on the housings, and that's why the earlier engines seem to last longer. Notice the springs as well, they are very skinny springs. Also on the apex spring, the newer engines have a couple of apex springs. We have came along way. We also have pictures of the interesting 12A rotors with 2 side seal grooves.