Inspection Procedure

1. Remove the engine assembly.

Refer to the applicable model and model year Repair Manual section(s) on the Technical Information System (TIS).

2. Disassemble the engine assembly to gain access to the cylinder block deck cylinder head and manifold mounting surfaces.

Refer to the applicable model and model year Repair Manual section(s) on TIS.

NOTE
If the following specifications are not met, replace the short block assembly.

3. Inspect the cylinder block for flatness.





Using a precision straight edge and feeler gauge measure the surface contacting the cylinder head for warpage.

Maximum Warpage: 0.05 mm (0.002 in.)

4. Inspect the depth of counter bore in head bolt hole.





Using a rule or vernier caliper measure the depth of counter bore.

Maximum Depth: 79.0 mm (3.11 in.)

NOTICE

Replace the cylinder block if the depth of any head bolt hole exceeds the standard.

5. Inspect the cylinder head for flatness.





Using a precision straight edge and a feeler gauge measure the surface contacting the cylinder block and the manifolds for warpage.

Maximum Warpage:
Cylinder Block Side: 0.05 mm (0.002 in.)
Exhaust Manifold Side: 0.08 mm (0.003 in.)

6. Inspect the cylinder head set bolt.





A. Check that the thread of cylinder head set bolt is free of debris or other foreign materials. Clean the head bolt if necessary.

B. Using a vernier caliper measure the length of the head bolts from the seat to the end.

Specified Bolt Length: 161.3 - 164.2 mm
(6.35 - 6.46 in.)