Mazda Engine SKYACTIV-G 2.5. Manual — part 21
MECHANICAL
01-10–68
1. Assemble in the order indicated in the table.
.
A
A
SST
SST
15—20
{1.6—2.0,
12—14}
8.0—9.0 N·m
{82—91 kgf·m,
71—79 ft·lbf}
9—12 N·m
{92—122 kgf·m,
80—106 ft·lbf}
R
4.5—7.0 N·m
{46—71 kgf·m,
40—61 ft·lbf}
SST
R
SEALANT
SEALANT
SST
OIL
OIL
20—26
{2.1—2.6,
15—19}
90—110
{9.2—11,
67—81}
+55—65
°
R
R
*1
SEALANT
SEALANT
SEALANT
SEALANT
SEALANT
SEALANT
*1
*1
*1
*1
*1: 8—11 N·m {82—112 kgf·m, 71—97 ft·lbf}
*1
SEALANT
SEALANT
N·m {kgf·m, ft·lbf}
*1
20—30
{2.1—3.0,
15—22}
38—46 {3.9—4.6, 29—33}
19
18
1
2
3
4
5
6
7
8
9
10
14
15
17
24
23
21
22
16
11
20
13
12
bpe1ze00000068
1
Key
2
Oil pump drive sprocket
3
Oil pump chain guide
4
Oil pump driven sprocket
(See 01-10-69 Oil Pump Chain Assembly Note.)
MECHANICAL
01-10–69
01-10
Oil Pump Chain Assembly Note
1. Verify that the key and knock pin are aligned to
the positions shown in the figure.
• If they are not in the positions shown in the
figure, rotate the crankshaft and balancer
shaft (No.1) to set cylinder No.1 to top dead
center (TDC).
2. Temporarily assemble the oil pump driven
sprocket.
3. Temporarily tighten the oil pump driven sprocket
installation bolt.
4. Align the oil pump chain alignment mark with the
balancer shaft sprocket alignment mark.
5
Oil pump chain
(See 01-10-69 Oil Pump Chain Assembly Note.)
6
Balancer shaft sprocket
(See 01-10-69 Oil Pump Chain Assembly Note.)
7
Oil pump chain tensioner
(See 01-10-69 Oil Pump Chain Assembly Note.)
8
Crankshaft sprocket
9
Chain guide (No.2)
10 Timing chain
(See 01-10-71 Timing Chain Assembly Note.)
11 Chain guide (No.1)
(See 01-10-71 Timing Chain Assembly Note.)
12 Tensioner arm
(See 01-10-71 Timing Chain Assembly Note.)
13 Chain tensioner
(See 01-10-71 Timing Chain Assembly Note.)
14 Engine front cover
(See 01-10-74 Engine Front Cover Assembly Note.)
15 Oil pan
(See 01-10-77 Oil Pan Assembly Note.)
16 Electric variable valve timing motor/driver
(See 01-10-79 Electric Variable Valve Timing Motor/
Driver Assembly Note.)
17 Front oil seal
(See 01-10-80 Front Oil Seal Assembly Note.)
18 Crankshaft pulley
19 Crankshaft pulley lock bolt
(See 01-10-80 Crankshaft Pulley Lock Bolt Assembly
Note.)
20 Water pump pulley
(See 01-10-81 Water Pump Pulley Assembly Note.)
21 Spark plug
22 Oil shower pipe
(See 01-10-81 Oil Shower Pipe Assembly Note.)
23 Cylinder head cover
(See 01-10-82 Cylinder Head Cover Assembly Note.)
24 Dipstick
KEY
KNOCK PIN
BALANCER SHAFT
(NO.1)
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OIL PUMP CHAIN
ALIGNMENT
MARK (ORANGE)
BALANCER SHAFT
SPROCKET
ALIGNMENT MARK
bpe1ze00000071
MECHANICAL
01-10–70
5. Install the oil pump chain and balancer shaft sprocket as a single unit while aligning the alignment marks on
each sprocket and oil pump chain as shown in the figure.
6. Temporarily tighten the balancer shaft sprocket installation bolt.
7. Install the oil pump chain tensioner.
Caution
• At this stage, do not remove the wire or paper clip installed to the oil pump chain tensioner.
8. Hold the crankshaft using the
SST.
9. Tighten the oil pump driven sprocket installation
bolt.
Tightening torque
20—30 N·m {2.1—3.0 kgf·m, 15—22 ft·lbf}
10. Tighten the balancer shaft sprocket installation
bolt.
Tightening torque
38—46 N·m {3.9—4.6 kgf·m, 29—33 ft·lbf}
11. Remove the wire or paper clip installed to the oil
pump chain tensioner and apply tension to the oil pump chain.
• If a new oil pump chain tensioner is used, remove the installed stopper.
OIL PUMP DRIVE
SPROCKET
ALIGNMENT MARK
KEY
OIL PUMP CHAIN ALIGNMENT
MARK (ORANGE)
OIL PUMP CHAIN
ALIGNMENT
MARK (YELLOW)
BALANCER SHAFT
SPROCKET
ALIGNMENT MARK
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49 E011 1A0
bpe1ze00000096
MECHANICAL
01-10–71
01-10
Timing Chain Assembly Note
1. Verify that the timing marks and the key are aligned to the position shown in the figure.
Note
• The timing mark of SKYACTIV-G 2.5 is not completely parallel with the upper surface of the cylinder head.
• If they are not in the position shown in the figure, rotate the camshaft and crankshaft to set the cylinder No.1
top dead center (TDC).
KEY
CYLINDER
HEAD
UPPER
SURFACE
TIMING MARK
TIMING CHAIN ALIGNMENT MARK
PIN
bpe5ue00000009
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