Mazda CX 7. Manual — part 108

MECHANICAL [L3 WITH TC]

01-10–33

01-10

No.1 Engine Mount Removal Note

1. Remove the No.1 engine mount bracket from the

underside of the vehicle.

2. Remove the No.1 engine mount rubber and the

front crossmember as a single unit. (See02-13-10
FRONT CROSSMEMBER REMOVAL/
INSTALLATION.)

No.3 Engine Mount Rubber, No.4 Engine Mount Bracket Removal Note

1. Secure the engine and transaxle using an engine

jack and attachment.

Engine Mount Installation Note

1. Tighten the No. 3 engine mount stud bolt.

Tightening torque

7.0— 13 N·m {72— 132 kgf·cm, 62— 115

in·lbf}

No.1 ENGINE MOUNT BRACKET

FRONT

acxuuw00000186

No.1 ENGINE
MOUNT RUBBER

acxuuw00000187

ENGINE JACK

ATTACHMENT

ENGINE, TRANSAXLE

acxuuw00000188

No.3 ENGINE
MOUNT
BRACKET
STUD BOLT

acxuuw00000189

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MECHANICAL [L3 WITH TC]

01-10–34

2. Tighten the No.1 engine mount bracket in the

order shown in the figure.

Tightening torque

93.1— 116.6 N·m {9.5— 11.8 kgf·m, 68.7—

85.9 ft·lbf}

3. Secure the engine and transaxle using an engine

jack and attachment.

4. Temporarily tighten the No.3 engine mount nuts in

the order shown in the figure.

5. Tighten the No.3 engine mount nuts in the order

shown in the figure.

Tightening torque

74.5— 104.9 N·m {7.6— 10.6 kgf·m, 55.0—

77.3 ft·lbf}

6. Temporarily tighten the No.4 engine mount

bracket in the order shown in the figure.

1

2

FRONT

acxuuw00000190

ENGINE JACK

ATTACHMENT

ENGINE, TRANSAXLE

acxuuw00000188

2

1

FRONT

acxuuw00000191

2

1

FRONT

acxuuw00000191

4

3

1

2

FRONT

acxuuw00000192

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MECHANICAL [L3 WITH TC]

01-10–35

01-10

7. Tighten the No.4 engine mount bracket in the

order shown in the figure.

Tightening torque

8. Tighten the No.1 engine mount bolt A shown in

the figure

Tightening torque

85.3— 116.6 N·m {8.7— 11.8 kgf·m, 63.0—

85.9 ft·lbf}

End Of Sie

ENGINE DISASSEMBLY/ASSEMBLY[L3 WITH TC]

id011039800500

1. Remove the engine from the transaxle. (See05-17-29 AUTOMATIC TRANSAXLE REMOVAL/

INSTALLATION[AW6A-EL, AW6AX-EL].)

2. Remove the intake-air system. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
3. Remove the exhaust system. (See01-15-2 EXHAUST SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
4. Remove the generator. (See01-17-4 GENERATOR REMOVAL/INSTALLATION[L3 WITH TC].)
5. Remove the starter. (See01-19-2 STARTER REMOVAL/INSTALLATION[L3 WITH TC].)
6. Remove the crankshaft position (CKP) sensor. (See01-40-42 CRANKSHAFT POSITION (CKP) SENSOR

REMOVAL/INSTALLATION[L3 WITH TC].)

7. Install in the reverse order of removal.

End Of Sie

ENGINE TUNE-UP[L3 WITH TC]

id011039800600

Note

• If the accelerator pedal is depressed continuously for a specified time, the engine speed may decrease to

the idle speed. This is due to the fuel cut control operation, which prevents overheating, and it does not
indicate a malfunction.

Engine Tune-up Preparation

1. Verify that the selector lever is in P, N position.
2. Connect the M-MDS to the DLC-2.
3. Verify that no DTCs are available.
4. Warm up the engine (ECT is approx. 80°C {176

°F} or more).

5. Turn off the electrical loads.
6. Wait until the cooling fans stop.

Installation

Position

Tightening Torque

1

3

66.6— 93.1 N·m {6.8— 9.4 kgf·m, 50—

68 ft·lbf}

4

74.5— 104.9 N·m {7.6— 10.6 kgf·m,

55.0— 77.3 ft·lbf}

3

1

4

2

FRONT

acxuuw00000193

A

FRONT

acxuuw00000194

DLC-2

acxuuw00000150

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MECHANICAL [L3 WITH TC]

01-10–36

Ignition Timing Inspection

Note

• The ignition timing cannot be adjusted.

• The M-MDS is required to verify the ignition timing.

1. Verify the ignition timing (M-MDS: SPARKADV) using the PID/data monitor function of the M-MDS.

Ignition timing

Approx. BTDC 10

°

2. Verify that ignition timing advances when the engine speed increases gradually.

• If there is malfunction, refer to “ENGINE SYMPTOM TROUBLESHOOTING”. (See01-03-5 ENGINE

SYMPTOM TROUBLESHOOTING[L3 WITH TC].)

Idle Speed Inspection

Note

• Idle speed is not adjustable.

• Idle speed verification requires M-MDS.

1. Verify that the idle speed (M-MDS: RPM PID) is within the specification using M-MDS.

• If there is malfunction, refer to “ENGINE SYMPTOM TROUBLESHOOTING”. (See01-03-5 ENGINE

SYMPTOM TROUBLESHOOTING[L3 WITH TC].)

Idle speed (P, N position)

No load: 650— 750 rpm
Electrical load on

*1

: 650— 750 rpm

P/S operation: 650— 750 rpm
A/C operation: 650— 750 rpm

Idle speed (D position)

No load: 575— 675 rpm
Electrical load on

*1

: 600— 700 rpm

P/S operation: 650— 750 rpm
A/C operation: 650— 750 rpm

*1 : When the following electrical loads are on: Headlights, rear defroster, cooling fan No.1, cooling fan No.2, and

the blower motor (2-step or more.)

Idle Mixture Inspection

1. Verify that the idle speed and ignition timing are within the specification. (See01-10-36 Idle Speed Inspection.)

(See01-10-36 Ignition Timing Inspection.)

2. Insert an exhaust gas analyzer to the tailpipe.
3. Verify that the CO and HC concentrations are within the regulation.

Idle mixture

HC concentration: Within the regulation
CO concentration: Within the regulation

End Of Sie

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