Mazda MX-5 1.8 mk1 cam rocker cover gasket and angle sensor CAS O-ring set MX5
Note the 1.8 has the CAS on the rear of the exhaust camshaft. Cam cover gasket & CAS o-ring set, Mazda MX-5 mk1 1.8 1989-98. Remove the CAS, carefully cut off the old o-ring. Cam angle sensor o-ring.