Camshaft: Removal and Installation: Installation

Fig 1: Installing Timing Chain Tensioners On Both Sides Of Cylinder Head

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• Install timing chain tensioner with its stopper pin attached.
• Install timing chain tensioner with sliding part facing downward on right-side cylinder head, and with sliding part facing upward on left-side cylinder head.
• Install new O-rings as shown.

• Install it in the original position.

• Install camshaft with dowel pin attached to its front end face on the exhaust side.
  Fig 2: Installing Camshaft With Dowel Pin

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• Follow your identification marks made during removal, or follow the identification marks that are present on new camshafts for proper placement and direction.
  Fig 3: Identifying Identification Marks On Camshafts

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  PAINT MARKS REFERENCE
  
  

  Bank	INT/EXH	Dowel pin	Paint marks		Identification mark
  			M1	M2
  RH	INT	No	Green	No	RE
  	EXH	Yes	No	White	RE
  LH	INT	No	Green	No	LH
  	EXH	Yes	No	White	LH

• Install camshaft so that dowel pin hole and dowel pin on front end face are positioned as shown. (No. 1 cylinder TDC on its compression stroke)
  Fig 4: Identifying Dowel Pin Hole And Dowel Pin Location

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  NOTE:

  • Large and small pin holes are located on front end face of camshaft (INT), at intervals of 180°. Face small dia. side pin hole upward (in cylinder head upper face direction).
  • Though camshaft does not stop at the portion as shown, for the placement of cam nose, it is generally accepted camshaft is placed for the same direction as shown.

Fig 5: Identifying Camshaft Brackets Components

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• Remove foreign material completely from camshaft bracket backside and from cylinder head installation face.
• Install camshaft bracket in original position and direction as shown.
• Install camshaft brackets (No. 2 to 4) aligning the stamp marks as shown.
  Fig 6: Aligning Stamp Marks On Camshaft Brackets

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  NOTE: There are no identification marks indicating left and right for camshaft bracket (No. 1).
• Apply liquid gasket to mating surface of camshaft bracket (No. 1) as shown on right and left banks.
  Fig 7: Applying Liquid Gasket To Mating Surface Of Camshaft Bracket (No. 1)

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  Use Genuine RTV Silicone Sealant or equivalent.  Refer to [RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS ].

Fig 8: Camshaft Bracket Tightening Sequence

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Camshaft bracket bolts 

Step 1 (bolts 7 - 10): 1.96 N.m (0.2 kg-m, 17 in-lb) 

Step 2 (bolts 1 - 6): 1.96 N.m (0.2 kg-m, 17 in-lb) 

Step 3: 5.88 N.m (0.6 kg-m, 52 in-lb) 

Step 4: 10.4 N.m (1.1 kg-m, 92 in-lb) 

Fig 9: Measuring Difference In Levels Between Front End Faces Of Camshaft Bracket And Cylinder Head

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Standard: -0.14 to 0.14 mm (-0.0055 to 0.0055 in) 

• Measure two positions (both intake and exhaust side) for a single bank.
• If the measured value is out of the standard, re-install camshaft bracket (No. 1).