2005 Subaru Outback Limited Ignition (H4SO) Component (U5 Model)

Identifying Ignition (H4SO) Component (Except For U5 Model) CAUTION Wear work clothing, including a cap, protective goggles and protective shoes during operation. Remove contamination including dirt and corrosion before removal, installation or disassembly. Keep the disassembled parts in order and protect them from dust and dirt. Before removal, installation or disassembly, be sure to clarify the failure. Avoid unnecessary removal, installation, disassembly and replacement. Be careful not to burn yourself, because each part on the vehicle is hot after running. Be sure to tighten fasteners including bolts and nuts to the specified torque. Place shop jacks or rigid racks at the specified points. Before disconnecting electrical connectors of sensors or units, be sure to disconnect the ground cable
REMOVAL Spark plug: RH SIDE 1. Disconnect the ground cable from battery. 2. Remove the air cleaner case.Ref. to REMOVAL , Air Cleaner Case. 3. Remove the spark plug cords by pulling the boot. (Do not pull the cord itself.) 4. Remove the spark plug with a spark plug socket.
LH SIDE 1. Remove the battery. < Ref. to REMOVAL , Battery. > 2. Remove the spark plug cords by pulling the boot. (Do not pull the cord itself.) 3. Remove the spark plug with a spark plug socket.
INSTALLATION RH SIDE Install in the reverse order of removal. Tightening torque: 21 N.m (2.1 kgf-m, 15.2 ft-lb) NOTE: The above torque should be only applied to new spark plugs without oil on their threads. In case their threads are lubricated, the torque should be reduced by approx. 1/3 of the specified torque in order to avoid over-stressing.

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