Engine Assembly: Inspection

INSPECT EXHAUST MANIFOLD SUB-ASSEMBLY LH
1. Using a precision straightedge and feeler gauge, measure the warpage on the contact surface of the cylinder head.
  Maximum warpage: 0.7 mm (0.028 in.)
  
  HINT:
  
  The maximum allowable warpage of each installation surface is 0.3 mm (0.012 in.). If the warpage is greater than the maximum, replace the manifold.
  
  Fig 1: Inspecting Exhaust Manifold Sub-Assembly LH
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT EXHAUST MANIFOLD SUB-ASSEMBLY RH
1. Using a precision straightedge and feeler gauge, measure the warpage on the contact surface of the cylinder head.
  Maximum warpage: 0.7 mm (0.028 in.)
  
  HINT:
  
  The maximum allowable warpage of each installation surface is 0.3 mm (0.012 in.). If the warpage is greater than the maximum, replace the manifold.
  
  Fig 2: Inspecting Exhaust Manifold Sub-Assembly RH
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT INTAKE AIR SURGE TANK ASSEMBLY
1. Using a precision straightedge and feeler gauge, measure the warpage on the contact surface of the intake manifold.
  Maximum warpage:
  
  2.5 mm (0.098 in.)
  
  If the warpage is greater than the maximum, replace the surge tank.
  
  Fig 3: Inspecting Intake Air Surge Tank Assembly
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT INTAKE MANIFOLD
1. Cylinder head side:
  1. Using a precision straightedge and feeler gauge, measure the surface contacting the cylinder head for warpage.
    Maximum warpage:
    
    0.1 mm (0.003 in.)
    
    If the warpage is greater than the maximum, replace the intake manifold.
2. Surge tank side:
  1. Using a precision straightedge and feeler gauge, measure the surface contacting the surge tank for warpage.
    Maximum warpage:
    
    0.1 mm (0.003 in.)
    
    If the warpage is greater than the maximum, replace the intake manifold.
    
    Fig 4: Inspecting Intake Manifold
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002