Intake Manifold: Inspection: Inspection

INSPECT INTAKE MANIFOLD SUB-ASSEMBLY UPPER
1. Using a precision straightedge and feeler gauge, measure the surface contacting the intake manifold upper for warpage.
  
  Fig 1: Inspecting Intake Manifold Sub-Assembly Upper
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Maximum warpage
  
  0.10 mm (0.0039 in.)
  
  If the warpage is greater than the maximum, replace the intake manifold sub-assembly upper.
INSPECT INTAKE MANIFOLD SUB-ASSEMBLY LOWER
1. Using a precision straightedge and feeler gauge, measure the surface contacting the cylinder head and intake manifold for warpage.
  
  Fig 2: Inspecting Intake Manifold Sub-Assembly Lower
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Maximum warpage
  
  0.15 mm (0.0059 in.)
  
  If the warpage is greater than the maximum, replace the intake manifold sub-assembly lower.