Cylinder Head & Manifolds: Inspection
- Inspect cylinder head warpage at cylinder block and manifold areas. Replace cylinder head if warpage exceeds specification. See CYLINDER HEAD under ENGINE SPECIFICATIONS.
- Inspect air intake chamber-to-intake manifold surface and exhaust manifold for warpage. Inspect intake manifold-to-cylinder head and air intake chamber surfaces for warpage. Replace components if warpage exceeds specification. See WARPAGE SPECIFICATIONS .WARPAGE SPECIFICATIONS
Application In. (mm) Air Intake Chamber .0039 (.100) Exhaust Manifold .0196 (.500) Intake Manifold Air Intake Chamber Surface .0059 (.150) Cylinder Head Surface .0031 (.080) - Using caliper, measure 12-point cylinder head bolt diameter at the small diameter, just below the bolt head. Replace cylinder head bolt if diameter is less than .3445" (8.750 mm).
- Inspect cylinder block deck surface for warpage. Replace cylinder block if deck surface warpage exceeds specification. See CYLINDER BLOCK under ENGINE SPECIFICATIONS. Inspect camshaft and components. See CAMSHAFTS .
- Inspect valve lifter for damage. Measure valve lifter diameter and bore diameter. Ensure oil clearance is within specification. Replace components if not within specification. See VALVE LIFTERS under ENGINE SPECIFICATIONS.