valves on 1991 BMW 325i

have a slight valve tap not sure if these are adjustable or not. are the hydrolic

Asked by for the 1991 BMW 325i
They are adjustable clearance intake and exhaust are both .010" cold. For adjustment procedures Autozone have some popular workshop manuals for free on line once you register (for free) on their website There is a company that independent auto repair shops get their information from, this same information is available inexpensively for people that work on their own cars.. The information is year make and model specific, covering repair procedures, torque specifications, fluid capacities and specifications, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate