Cleaning and Inspection Procedure - Conditional
WARNING:
Refer to Safety Glasses and Compressed Air Warning .
NOTE:
The following cleaning and inspection and/or overhaul steps are ONLY to be performed as determined necessary based on the condition of the part being removed with the intention of reinstallation. The labor time to perform any of these steps is not included in the base labor time and if required would need to be documented and submitted as Other Labor Hours for warranty claim reimbursement. A description of the repairs performed must be documented in the technician correction comments.
Clean all sealing surfaces.
- Dry the intake manifold with compressed air.
- Inspect the intake manifold cylinder head deck for warpage.
- Place a straight edge (1) across the intake manifold cylinder head deck surface.
- Inspect the intake manifold for the following conditions:
- Inspect for loose threaded inserts or studs.
- Inspect for damaged or broken vacuum fitting.
- Inspect the intake manifold assembly for cracks or other damage.
- Inspect for damaged intake manifold gasket sealing surfaces.
- Position the straight edge (1) across a minimum of two runner port openings and check for warpage using a feeler gage. Engine Mechanical Specifications (L84)
- Inspect the ventilation system passages for restrictions.
Clean the engine block valley cover in solvent.
- Dry with compressed air.
- Inspect for damaged threads (1) and damaged sealing surfaces (2).