Content .. 103 104 105 106 ..

Mazda CX 7. Manual - part 105

MECHANICAL [L3 WITH TC]

01-10–23

01-10

2007 Mazda CX-7 Workshop Manual (1871–1U–06B)

Revised 3/2007 (Ref. No. R051/07)

Camshaft Installation Note

1. Install the camshaft with No.3 cylinder cam aligned at TDC of compression stroke.

2. Carefully apply adhesive agent (Loctite 518 or

962) to the area indicated in the figure so that it
does not leak into the sliding part.

Thickness

1.0 mm {0.039 in}

3. Install the camshaft caps and temporarily tighten

the camshaft cap bolts evenly in two or three
passes, and then tighten the camshaft cap bolts
using the following two steps, in the order shown
in the figure.

Tightening procedure

1. 5.0— 9.0 N·m {51— 91 kgf·cm, 45— 79

in·lbf}

2. 14— 17 N·m {1.5— 1.7 kgf·m, 11— 12 ft·lbf}

End Of Sie

WM: FRONT OIL SEAL

FRONT OIL SEAL REPLACEMENT[L3 WITH TC]

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1. Disconnect the negative battery cable.
2. Remove the under cover.
3. Remove the splash shield (RH).
4. Remove the charge air cooler. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
5. Remove the high pressure fuel pump. (See 01-14-16 HIGH PRESSURE FUEL PUMP REMOVAL/

INSTALLATION[L3 WITH TC].)

6. Remove the drive belt. (See01-10-3 DRIVE BELT REMOVAL/INSTALLATION[L3 WITH TC].)
7. Remove the ignition coils. (See01-18-2 IGNITION COIL REMOVAL/INSTALLATION[L3 WITH TC].)
8. Disconnect the wiring harness.
9. Remove the ventilation hose.

10. Remove cylinder head cover. (See01-10-10 TIMING CHAIN REMOVAL/INSTALLATION[L3 WITH TC].)
11. Remove the crankshaft position (CKP) sensor. (See01-40-42 CRANKSHAFT POSITION (CKP) SENSOR

REMOVAL/INSTALLATION[L3 WITH TC].)

12. Remove the bracket shown in the figure, and

place the power steering pressure hose outside of
the vehicle.

13. Remove in the order indicated in the figure.
14. Install in the reverse order of removal.

SEALANT

INTAKE REAR CAMSHAFT CAP

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No.1

No.2

No.3

No.4

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FRONT

POWER STEERING
PRESSURE HOSE

STEERING GEAR

7.8—10.8
{80—110,
70—95 }

m {kgf

cm, in

lbf}

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MECHANICAL [L3 WITH TC]

01-10–24

2007 Mazda CX-7 Workshop Manual (1871–1U–06B)

Crankshaft Pulley Lock Bolt Removal Note

1. Rotate the crankshaft in the direction of the

engine rotation and remove the cylinder block
lower blind plug when the No. 1 cylinder is at the
point prior to top dead center (TDC) of
compression, then install the SST.

2. Rotate the crankshaft in the direction of the

engine rotation so that the No.1 piston is at TDC
of the compression stroke. (Until the crank weight
contacts SST and stops.)

3. Install the SSTs to the crankshaft pulley and lock

the crankshaft against rotation.

SST

OIL

96—104 {9.8—10.6 , 70.9—76.7} +87

—93

N·m { kgf·m, ft·lbf}

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Crankshaft pulley lock bolt
(See01-10-24 Crankshaft Pulley Lock Bolt Removal
Note.)
(See01-10-25 Crankshaft Pulley Lock Bolt Installation
Note.)

Crankshaft pulley

Front oil seal
(See01-10-25 Front Oil Seal Removal Note.)
(See01-10-25 Front Oil Seal Installation Note.)

303-507

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205-126

205-07202

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MECHANICAL [L3 WITH TC]

01-10–25

01-10

Front Oil Seal Removal Note

1. Remove the oil seal lip using a razor.
2. Remove the oil seal using a flathead screwdriver

with the tip protected by a rag to prevent
crankshaft oil seal damage.

Front Oil Seal Installation Note

1. Apply clean engine oil to a new oil seal.
2. Insert the oil seal into the engine front cover.
3. Tap in the oil seal using the SST.

Front oil seal press-in amount

0— 0.5 mm {0— 0.019 in}

Crankshaft Pulley Lock Bolt Installation Note

1. Install the SST to the camshaft as shown in the

figure.

2. Verify that cylinder No.1 is at TDC of the

compression stroke. (Position crank weight
contacts SST.)

FRONT OIL SEAL

RAG

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49 H010 401

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HAMMER

FRONT OIL SEAL

FRONT COVER BODY

49 H010 401

0—0.5 mm
{0—0.019 in}

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303-1061

(49 UN30 310610)

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MECHANICAL [L3 WITH TC]

01-10–26

3. To position the crankshaft pulley, temporarily

tighten it and, using a suitable bolt (M6 x 1.0), fix
the crankshaft pulley to the engine front cover.

4. Install the SSTs to the crankshaft pulley and lock

the crankshaft against rotation, and tighten the
crankshaft pulley lock bolt using the following two
steps.

Tightening procedure

(1) 96— 104 N·m {9.8— 10.6 kgf·m, 70.9—

76.7 ft·lbf}

(2) 87

°— 93°

5. Remove the crankshaft pulley installation bolt (M6

X 1.0).

6. Remove the SST from the camshaft.
7. Remove the SST installed in the cylinder block

lower blind plug hole.

8. Rotate the crankshaft clockwise two turns and inspect the valve timing.

• If not aligned, repeat from Step 1.

9. Install the cylinder block lower blind plug.

Tightening torque

18— 22 N·m {1.9— 2.2 kgf·m, 14— 16 ft·lbf}

End Of Sie

WM: REAR OIL SEAL

REAR OIL SEAL REPLACEMENT[L3 WITH TC]

id011039800900

1. Remove the drive plate. (See 05-17-52 DRIVE PLATE REMOVAL/INSTALLATION[AW6A-EL, AW6AX-EL].)
2. Remove in the order indicated in the figure.
3. Install in the reverse order of removal.

BOLT

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205-126

205-07202

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BLIND
PLUG

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Bolt

Rear oil seal
(See01-10-27 Rear Oil Seal Installation Note.)

OIL

SST

8.0—11.5
{82—117,
71—101}

N·m {kgf·cm, in·lbf}

8.0—11.5
{82—117,
71—101}

acxuuw00000146

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Content .. 103 104 105 106 ..