Engine Assembly
1GR-FE ENGINE MECHANICAL: ENGINE ASSEMBLY: INSPECTION
INSPECTION
1. INSPECT INTAKE MANIFOLD FOR WARPAGE
(a) Using a precision straight edge and feeler gauge, measure the warpage of the contact surfaces of the cylinder head and intake air surge tank.
Maximum warpage:
Intake air surge tank side
0.8 mm (0.031 in.)
Cylinder head side
0.2 mm (0.008 in.)
If the warpage is greater than the maximum, replace the intake manifold.