Removal & Installation: Diagnosis Jeep Cherokee III

Inspection

1. Inspect cylinder head for cracks and damage. Using straightedge, check cylinder head for warpage across bolt holes and diagonals. Repair or replace cylinder head if warpage exceeds specification or damage exists. See «CYLINDER HEAD»(ref-98248-S37815619182001051800000) table under ENGINE SPECIFICATIONS.
2. Cylinder head bolts may only be reused once. If this is first time cylinder head has been removed, mark each bolt head with paint. If bolts are already marked or if it is unknown whether head bolts have been used before, discard and replace with NEW head bolts.

Inspect lobes, journals, bearings and distributor drive gear for wear. Inspect valve lifters for abnormal wear. If camshaft sprocket or chain rubs against engine front cover, examine oil pressure relief holes in rear camshaft journal and ensure they are free of debris. Replace components as necessary. If camshaft requires replacement, valve lifters must also be replaced.