140
1212
Figure 10
Remove Gear Case
1. Remove three screws (A, Figure 11) and
camshaft retainer.
2. Remove remaining five screws (B).
Figure 11
3. Remove timing gear case and discard
gasket.
4. Inspect rotors for wear or damage.
NOTE: If pump rotors are worn or damaged,
replace the gear case.
5. Remove and check pressure relief valve
assembly (Figure 12).
• Make sure plunger has no nicks or burrs.
• Check pressure relief valve spring length.
• Spring free length: 35.5 +/- 1.0 mm (1.4 +/-
.040 in.)
Figure 12
Assemble Timing Gear Case and Gears
1. Clean and lubricate oil pump rotor (A, Figure
13) with engine oil and install in cylinder
block.
NOTE: ID mark (B) on rotor must face cylinder
block.
Figure 13
2. Install timing gear case with new gasket.
Install camshaft retainer (Figure 14).
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