Mazda Engine SKYACTIV-G 2.5. Manual — part 8
MECHANICAL
01-10–16
Electric Variable Valve Timing Actuator, Hydraulic Variable Valve Timing Actuator Disassembly Note
1. Hold the camshaft using a wrench on the cast
hexagon and loosen the actuator installation bolt.
Camshaft Cap Disassembly Note
1. Before removing the camshaft cap, Inspect the camshaft end play. (See 01-10-30 CAMSHAFT INSPECTION.)
2. Loosen the camshaft cap installation bolts in two
or three passes in the order shown in the figure
and remove the camshaft caps.
Rocker Arm Disassembly Note
1. Keep the rocker arms in the order of removal to enable reassembly in their original positions.
HLA Disassembly Note
1. Keep the HLAs in the order of removal to enable reassembly in their original positions.
Cylinder Head Disassembly Note
1. Loosen the cylinder head installation bolts in two
or three passes in the order shown in the figure
and remove them.
End Of Sie
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I2
I3
I4
I5
E2
E5
E4
E3
3
5
1
2
4
3
4
6
2
1
5
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2
6
8
4
1
5
9
7
10
ENGINE
FRONT
3
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MECHANICAL
01-10–17
01-10
CYLINDER HEAD DISASSEMBLY (II)
id011000500500
1. Disassemble in the order indicated in the table.
.
3
1
2
R
R
7
SST
SST
5
4
6
9
8
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1
Thermostat cover
2
Thermostat
3
Water outlet
4
Valve keeper
(See 01-10-18 Valve Keeper Disassembly Note.)
5
Upper valve spring seat
6
Valve spring
7
Valve
8
Valve seal
(See 01-10-18 Valve Seal Disassembly Note.)
9
Lower valve spring seat
MECHANICAL
01-10–18
Valve Keeper Disassembly Note
1. Remove the valve keeper using the
SSTs.
Valve Seal Disassembly Note
1. Remove the valve seal using the
SST or pliers.
End Of Sie
49 0636 100B
49 B012 0A2A
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49 S120 170
VALVE SEAL
VALVE GUIDE
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VALVE SEAL
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MECHANICAL
01-10–19
01-10
CYLINDER BLOCK DISASSEMBLY (I)
id011000500600
Caution
• Do not disassemble the oil pump, water pump and balancer unit because it is a precision unit.
1. Disassemble in the order indicated in the table.
.
R
R
R
R
SST
9
7
6
5
5
4
3
8
1
2
R
SST
3
R
ATX
MTX
10
11
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1
Knock sensor (KS)
2
Oil separator
3
Dual-mass flywheel (MTX)/ drive plate (ATX)
installation bolt
(See 01-10-20 Dual-mass Flywheel (MTX)/ Drive
Plate (ATX) Installation Bolt Disassembly Note.)
4
Backing plate (ATX)
5
Dual-mass flywheel (MTX), drive plate (ATX)
(See 01-10-21 Dual-mass Flywheel Disassembly
Note (MTX).)
6
End plate
7
Rear oil seal
(See 01-10-21 Rear Oil Seal Disassembly Note.)
8
Water pump
9
Oil strainer
10
Oil pump
11
Balancer unit
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