– Remove timing gear cover. (See Remove and Install Timing Gear Cover in this Group.)
 – Remove the eight screws (A) from oil pump cover (B) and remove cover.
 – Remove inner rotor (C) and outer rotor (D) and check for wear or damage. Check inside
of cover for wear or deep scratches. Replace any worn or damaged parts.
 – Inspect inside of oil pump cover for grooves or deep scratches. Replace cover if worn or damaged.
 – Remove relief valve cap (E), spring (F), and valve (G). Inspect all parts for wear or damage. Replace any worn or damaged parts.
 – Measure clearance between outer rotor (H) and timing cover (I) with a feeler gauge (J).
If clearance exceeds wear limit, replace timing cover and both rotors.
 – Measure between high spots of inner and outer rotors with a feeler gage. If clearance exceeds specification replace rotors.
 – Place a straight edge (K) across timing gear cover bosses. Measure gap between edge of timing gear cover and the rotors with a feeler gauge (L). If clearance exceeds wear limit replace timing gear cover and rotors.
 – Assemble in the reverse order of disassembly.
 – Apply medium strength thread locking compound to oil pump cover screws and relief valve cap when installing.