Fig. 7 Oil Pump Components

Fig. 8 Inner Rotor to Case

(5) Replace if out of limits.

Fig. 9 Checking Clearance-Between Outer Rotor and

Case

OIL RELIEF PLUNGER

(1) Check that the oil relief plunger slides smoothly.

Fig. 10 Checking Rotor End Clearance

(2) Check for broken relief spring.

INSTALLATION

(1)Clean block and pump surfaces.

(2)Install new gasket (Fig. 7) make sure correct length bolts are used (Fig. 6).

(3)Torque bolts to 13 Nzm (120 in. lbs.).

CHECKING ENGINE OIL PRESSURE

Check oil pressure using gauge at oil pressure switch location. Oil pressure should be 41 kPa (6 psi.) at idle or 241 to 517 kPa (35 to 75 psi.) at 3000 RPM.

(1) Remove pressure sending unit and install oil pressure gauge. (Fig. 11)

CAUTION: If oil pressure is 0 at idle, Do Not Run engine at 3000 RPM.

(2) Warm engine at high idle until thermostat opens.

Fig. 11 Checking Oil Pump Pressure