Steps 81-120

Camshaft













Removal

NOTICE: During engine repair procedures, cleanliness is extremely important. Any foreign material, including any material created while cleaning gasket surfaces, that enters the oil passages, coolant passages or the oil pan may cause engine failure.

NOTE: The engine comes equipped with either a roller primary timing chain or an inverted tooth primary timing chain.

81. Disconnect the RH Variable Camshaft Timing (VCT) solenoid electrical connector.





82. Disconnect the 3 RH coil-on-plug electrical connectors.





83. Detach all of the wiring harness retainers from the RH valve cover and stud bolts.

84. Disconnect the LH VCT solenoid electrical connector.





85. Disconnect the 3 LH coil-on-plug electrical connectors.





86. Detach all of the wiring harness retainers from the LH valve cover and stud bolts.

87. NOTE: LH shown, RH similar.

Remove the 6 bolts and the 6 coil-on-plug assemblies.





88. Disconnect the PSP switch electrical connector.





89. Remove the PSP tube bracket-to-power steering pump bolt.





90. Remove the nut and the PSP tube bracket from the RH valve cover stud bolt.





91. Remove the 3 bolts and position aside the power steering pump.





92. Remove the 3 bolts and the accessory drive belt tensioner.





93. Loosen the 9 stud bolts and remove the LH valve cover.
- Discard the gasket.





94. Loosen the bolt, the 8 stud bolts and remove the RH valve cover.
- Discard the gasket.





95. NOTE: VCT solenoid seal removal shown, spark plug tube seal removal similar.

Inspect the VCT solenoid seals and the spark plug tube seals. Install new seals if damaged.
- Using the VCT Spark Plug Tube Seal Remover and Handle, remove the seal(s).





96. Using the Strap Wrench, remove the crankshaft pulley bolt and washer.
- Discard the bolt.





97. Using the 3 Jaw Puller, remove the crankshaft pulley.





98. Using the Oil Seal Remover, remove and discard the crankshaft front seal.





99. Remove the 2 bolts and the engine mount bracket.





100. NOTE: Only use hand tools to remove the studs.

Remove the 2 engine mount studs.





101. Remove the 3 bolts and the engine mount bracket.





102. Remove the 22 engine front cover bolts.





103. Install 6 of the engine front cover bolts (finger tight) into the 6 threaded holes in the engine front cover.
- Tighten the bolts one turn at a time in a crisscross pattern until the engine front cover-to-cylinder block seal is released.
- Remove the engine front cover.





104. NOTICE: Only use a 3M(TM) Roloc(R) Bristle Disk (2-in white, part number 07528) to clean the engine front cover. Do not use metal scrapers, wire brushes or any other power abrasive disk to clean the engine front cover. These tools cause scratches and gouges that make leak paths.

Clean the engine front cover using a 3M(TM) Roloc(R) Bristle Disk (2-in white, part number 07528) in a suitable tool turning at the recommended speed of 15,000 rpm.

- Thoroughly wash the engine front cover to remove any foreign material, including any abrasive particles created during the cleaning process.

105. NOTICE: Place clean, lint-free shop towels over exposed engine cavities. Carefully remove the towels so foreign material is not dropped into the engine. Any foreign material (including any material created while cleaning gasket surfaces) that enters the oil passages or the oil pan, may cause engine failure.

NOTICE: Do not use wire brushes, power abrasive discs or 3M(TM) Roloc(R) Bristle Disk (2-in white, part number 07528) to clean the sealing surfaces. These tools cause scratches and gouges that make leak paths. They also cause contamination that will cause premature engine failure. Remove all traces of sealant, including any sealant from the inner surface of the cylinder block and cylinder head.

Clean the sealing surfaces of the cylinder heads, the cylinder block and the oil pan in the following sequence.

1. Remove any large deposits of silicone or gasket material.

2. Apply silicone gasket remover and allow to set for several minutes.

3. Remove the silicone gasket remover. A second application of silicone gasket remover may be required if residual traces of silicone or gasket material remain.

4. Apply metal surface prep, to remove any remaining traces of oil or coolant and to prepare the surfaces to bond. Do not attempt to make the metal shiny. Some staining of the metal surfaces is normal.

5. Make sure the 2 locating dowel pins are seated correctly in the cylinder block.

106. NOTE: Engine equipped with roller timing chain and stamped steel RH timing chain guide shown, other applications similar.

Rotate the crankshaft clockwise and align the timing marks on the Variable Camshaft Timing (VCT) assemblies as shown.





107. NOTE: The Camshaft Holding Tool will hold the camshafts in the Top Dead Center (TDC) position.

Install the Camshaft Holding Tool onto the flats of the LH camshafts.





108. NOTE: The Camshaft Holding Tool will hold the camshafts in the TDC position.

Install the Camshaft Holding Tool onto the flats of the RH camshafts.





109. Remove the 3 bolts and the RH VCT housing.





110. Remove the 3 bolts and the LH VCT housing.





Engines equipped with a roller timing chain

NOTE: The following 3 steps are for primary timing chains when the colored links are not visible.

111. Mark the timing chain link that aligns with the timing mark on the RH intake VCT assembly as shown.





112. Mark the timing chain link that aligns with the timing mark on the LH intake VCT assembly as shown.





113. Mark the timing chain link that aligns with the timing mark on the crankshaft sprocket as shown.





114. Remove the 2 bolts and the primary timing chain tensioner.





115. Remove the primary timing chain tensioner arm.





116. Remove the 2 bolts and the lower LH primary timing chain guide.





117. Remove the primary timing chain.





Engines equipped with an inverted tooth timing chain

NOTE: The following 3 steps are for primary timing chains when the colored links are not visible.

118. Mark the timing chain link that aligns with the timing mark on the RH intake VCT assembly as shown.





119. Mark the timing chain link that aligns with the timing mark on the LH intake VCT assembly as shown.





120. NOTE: The crankshaft sprocket timing mark should be between the 2 colored links.

Mark the 2 timing chain links that align with the timing mark on the crankshaft sprocket as shown.