Engine 911 Carrera (996) · Differences

Engine 911 Carrera (996) Differences Item 4 Valves Dependingon the time of assembly,the engines of the X51 are equippedwith two different valve versions. 59o_98 further to Item 4 Valves [::] [:] Version 1: Q Inlet valve (standard)and exhaustvalve (standard)are additionallyequippedwith valve caps. 17_99 further to Item 4 Valves Version 2: (Introducedin December '98) Inlet and exhaustvalves lengthenedby 1.5 mm. Valve caps were omitted after introduction of the valves (version 2). The valve caps will remain in stock as replacementparts for the shorter standard valves of the 911 Carrera(996). Identification of inlet valve: Yellow dot on the valve disc Identification of exhaust valve: Black dot on valve disc 18_99 1-14 1 3.4 I engine performance kit / X51 9961_7 Printed in Germany -21, 1999