Lower Intake Manifold Cleaning Procedure - Suzuki XL7 2007 Service Manual

4. Inspect the upper intake manifold sealing surface for
warpage.
a. Locate a straight edge across the upper-to-lower
intake manifold sealing surface.
b. Insert a feeler gage between the upper intake
manifold and the straight edge. An upper intake
manifold with warpage in excess of 0.05 mm
(0.020 in) must be replaced.
5. Repair or replace the upper intake manifold as
necessary.

Lower Intake Manifold Cleaning Procedure

1. Remove any remaining gasket and/or gasket
material from the following:
– Upper-to-lower intake manifold sealing surface
– Cylinder head-to-lower intake manifold sealing
surface
2. Clean the following intake manifold areas in solvent.
– Intake manifold gasket sealing surfaces
– Intake manifold passages
WARNING
!
Refer to "Safety Glasses Caution: ".
3. Dry the intake manifold with compressed air.
Inspection Procedure
1. Inspect the lower intake manifold for the following
conditions:
– Damage, debris or restrictions to the lower intake
manifold ports
– Damage to the fuel rail mounting bolt holes
– Damage to the fuel rail
2. Inspect the lower intake manifold for the following
conditions:
– Gouges or damage to the intake manifold sealing
surfaces
– Damage to the lower intake manifold bolt bosses
– Damage to the fuel injector ports
Engine Mechanical: 1D-217