Location of the CAS on a 1.6 miata

Back of valve cover, on the intake side of the engine (passenger side on US cars)



Not hard to reach with an ordinary wrench.

Some flex-head sockets wrenches even fit, if you want more leverage.


I'm neither a certifed auto mechanic nor a trained Mazda technician. The information on this page is my own interpretation and may be flat-ass wrong. Use at your own discretion and risk.