2004 forester service manual quick reference index engine section 1
Contents
1. 1 RHSIDE Install in the reverse order of removal Tightening torque Spark plug 21 N m 2 1 kgf m 15 2 ft Ib 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 2 LH SIDE Install in the reverse order of removal Tightening torque Spark plug 21 N m 2 1 kgf m 15 2 ft Ib 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 C INSPECTION Check the electrodes and inner and ceramic insu lator of plugs noting the type of deposits and the degree of electrode erosion l Hima E IG 00023 gt Electrode gap B Carbon accumulation or wear C Cracks D Damage E Damaged gasket 1 Normal Brown to grayish tan deposits and slight electrode wear indicates correct spark plug heat range 1G 00024 2 Carbon fouled Dry fluffy carbon deposits on insulator and elec trode are mostly caused by slow speed driving in city weak ignition too rich fuel mixture dirty air cleaner etc It is advisable to replace with plugs having hotter heat range 1G 00025 IG H4SO 6 Spark Plug IGNI2. 3 Disconnect the connector from ignition coil amp ig nitor assembly 4 Remove the ignition coil amp ignitor assembly IG 00044 B INSTALLATION Install in the reverse order of removal Tightening torque 6 4 N m 0 65 kgf m 4 7 ft lb 1G 00044 C INSPECTION Using the accurate tester inspect the secondary coil resistance and replace if defective CAUTION e If the resistance is extremely low this indi cates the presence of a short circuit e ignitor is integrated in coil Therefore prima ry coil resistance can not be measured Specified resistance Secondary side Between A and B 12 8 k2 15 Between C and D 12 8 k2 15 1G 00045 Insulation between primary terminal and case 100 MQ or more IG H4SO 8 Spark Plug Cord 4 Spark Plug Cord A INSPECTION Check for 1 Damage to cords deformation burning or rust formation of terminals 2 Resistance values of cords Resistance value 1 cord 5 6 10 6 kQ 2 cord 7 3 13 7 kQ 3 cord 5 9 11 1 kQ 4 cord 7 3 13 7 kQ ol 1G 00031 IG H4SO 9 IGNITION Spark Plug Cord IGNITION IG H4SO 10
3. sure to tighten fasteners including bolts and nuts to the specified torque e Place shop jacks or rigid racks at the specified points e Before disconnecting electrical connectors of sensors or units be sure to disconnect the ground cable from battery IG H4SO 4 Spark Plug 2 Spark Plug A REMOVAL CAUTION AII spark plugs installed on an engine must be of the same heat range Spark plug CHAMPION RC10YC4 NGK BKR5E 11 Alternate 1 RHSIDE 1 Disconnect the ground cable from battery FU 00009 2 Remove the air cleaner case lt Ref to IN H4SO 8 REMOVAL Resonator Chamber gt 3 Remove the spark plug cords by pulling boot not the cord itself Re Jet CR 4 Remove the spark plugs with spark plug sock ets IG 00018 IGNITION 2 LH SIDE 1 Disconnect the ground cable from battery FU 00009 2 Disconnect the washer motor connector IG 00019 3 Disconnect the rear window glass washer hose from washer motor then plug connection with a suitable cap 4 Remove the two bolts which hold washer tank then take the tank away from the working area IG 00020 5 Remove the spark plugs cord by pulling boot not the cord itself 1G 00021 IG H4SO 5 Spark Plug IGNITION 6 Remove the spark plugs with spark plug sock ets 1G 00022 B INSTALLATION
4. 2004 FORESTER SERVICE MANUAL QUICK REFERENCE INDEX ENGINE SECTION 1 FUEL INJECTION FUEL SYSTEM FU H4SO EMISSION CONTROL EC H4S0 AUX EMISSION CONTROL DEVICE INTAKE INDUCTION INT alito MECHANICAL ME H4SO This service manual has been prepared to provide SUBARU service personnel with the necessary information and data for the correct maintenance and repair of SUBARU vehicles This manual includes the procedures for maintenance disassembling reas sembling inspection and adjustment of components and diagnostics for guid ance of experienced mechanics Please peruse and utilize this manual fully to ensure complete repair work for satisfying our customers by keeping their vehicle in optimum condition When replacement of parts during repair work is needed be sure to use SUBARU genuine parts EXHAUST EX H4S0 COOLING CO H4S0 LUBRICATION LU H4SO SPEED CONTROL SYSTEM SP H4SO IGNITION IG H4S0 STARTING CHARGING SYSTEM SC H4S0 ENGINE DIAGNOSTIC EN H4SO All information illustration and specifi cations contained in this manual are based on the latest product information available at the time of publication approval FUJI HEAVY INDUSTRIES LTD G8080GE2 EbET T m m i jp iI 2 S A SSO SSS Soe IGNITION IG H4SO Page 1 General Description 2 25 SDA Kh AG sete eine dallo di risa 5 3 Ignition Coil amp Ignitor Assembly cc ceeeeeeeeeeeeeee
5. TION 3 Oil fouled Wet black deposits show excessive oil entrance into combustion chamber through worn rings and pistons or excessive clearance between valve guides and stems If the same condition remains after repair use a hotter plug 1G 00026 4 Overheating White or light gray insulator with black or gray brown spots and bluish burnt electrodes indicates engine overheating Moreover the appearance re sults from incorrect ignition timing loose spark plugs wrong selection of fuel hotter range plug etc It is advisable to replace with plugs having colder heat range 1G 00027 D CLEANING Clean the spark plugs in a sand blast type cleaner Avoid excessive blasting Clean and remove the carbon or oxide deposits but do not wear away ce ramic insulator If deposits are too stubborn replace the spark plugs E ADJUSTMENT Correct it if the spark plug gap is measured with a gap gauge and it is necessary Spark plug gap L 1 0 1 1 mm 0 039 0 043 in 1G 00028 NOTE Replace with a new spark plug if this area A is worn to ball shape IG H4SO 7 Ignition Coil amp Ignitor Assembly IGNITION 3 Ignition Coil amp Ignitor Assem bly A REMOVAL 1 Disconnect the ground cable from battery FU 00009 2 Disconnect the spark plug cords from ignition coil amp ignitor assembly 1G 00043
6. eeeeeeeeeeeeeeeeeeeeeeteaeeeeeneaas 8 4 Spark Plug Cordier 9 General Description IGNITION 1 General Description A SPECIFICATION Designation Model FH0137 Manufacturer DIAMOND Ignition coil igni Primary coil resistance 0 73 Q410 tor assembly Secondary coil resistance 12 8 kQ 15 ce resistance between primary terminal and More than 100 MQ Type and manufacturer CPAMPIONSAC 10 rG4 yp NGK BKR5E 11 Alternate Spark plug Thread size 14 P 1 25 Spark plug gap i 1 0 1 1 0 039 0 043 IG H4S0 2 General Description IGNITION B COMPONENT 2 1 TI 4 1G 00042 1 Spark plug 4 Spark plug cord 2 4 Tightening torque N m kgf m ft Ib 2 Spark plug cord 1 3 T1 21 2 1 15 2 3 Ignition coil amp ignitor ASSY T2 6 4 0 65 4 7 IG H4SO 3 General Description IGNITION C CAUTION e Wear working clothing including a cap protec tive goggles and protective shoes during opera tion e Remove contamination including dirt and corro sion before removal installation or disassembly e Keep the disassembled parts in order and pro tect them from dust or dirt e Before removal installation or disassembly be sure to clarify the failure Avoid unnecessary re moval installation disassembly and replacement e Be careful not to burn yourself because each part on the vehicle is hot after running e Be
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