Mazda CX-7 2007 Workshop Manual page 425

OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION[L3 WITH TC]
1. Disconnect the negative battery cable.
2. Remove the charge air cooler. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
3. Remove the ignition coils. (See01-18-2 IGNITION COIL REMOVAL/INSTALLATION[L3 WITH TC].)
4. Disconnect the wiring harness.
5. Remove the ventilation hose.
6. Remove the cylinder head cover. (See01-10-10 TIMING CHAIN REMOVAL/INSTALLATION[L3 WITH TC].)
7. Remove in the order indicated in the table.
8. Install in the reverse order of removal.
1 OCV
Tightening torque
8.0— 11.5 N·m {82— 117 kgf·cm, 71— 101
in·lbf}
End Of Sie
OIL CONTROL VALVE (OCV) INSPECTION[L3 WITH TC]
Coil Resistance Inspection
1. Disconnect the negative battery cable.
2. Disconnect the OCV connector.
3. Measure the coil resistance between terminals A
and B using a tester.
• If it is not within the specification, replace the
OCV.
OCV resistance
6.9— 7.9 ohms [20°C {68°F}]
4. Connect the OCV connector.
5. Connect the negative battery cable.
Spool Valve Operation Inspection
1. Disconnect the negative battery cable.
2. Disconnect the OCV connector.
3. Remove the OCV. (See01-10-29 OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION[L3 WITH TC].)
4. Verify that the spool valve in the OCV is in the
maximum valve timing retard position as indicated
in the figure.
• If not as specified, replace the OCV.
5. Verify that the battery is fully charged.
• If not as specified, recharge the battery.
MECHANICAL [L3 WITH TC]
8.0—11.5 {82—117,
71—101}
A B
SPOOL VALVE
(MAXIMUM VALVE TIMING RETARD POSITION
id011039801300
01-10
N·m {kgf·cm, in·lbf}
acxuuw00000138
id011039801400
acxuuw00000139
acxuuw00000140
01-10–29