Mazda Engine SKYACTIV-G 2.5. Manual — part 7
MECHANICAL
01-10–12
5. Insert a wire with an
approx. diameter of 1.5 mm
{0.059 in} or a paper clip where the link plate hole
and the tensioner body hole overlap to secure the
link plate and lock the plunger.
6. Remove the chain tensioner.
Oil Pump Chain Disassembly Note
1. Hold the crankshaft using the
SST.
2. Slightly loosen the balancer shaft sprocket and oil
pump driven sprocket installation bolts.
Note
• At this stage, only loosen the installation
bolts, do not remove them. Remove the bolts
after removing the oil pump chain tensioner.
3. Set a cloth wrapped flathead screwdriver in the
gap between the oil pump drive sprocket and the
oil pump chain as shown in the figure.
WIRE OR
PAPER CLIP
TENSIONER BODY HOLE
LINK PLATE
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49 E011 1A0
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OIL PUMP CHAIN TENSIONER
OIL PUMP CHAIN
OIL PUMP DRIVE
SPROCKET
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MECHANICAL
01-10–13
01-10
4. Move the screwdriver in the direction of the arrow and press the oil pump chain, and then press on the plunger
of the oil pump chain tensioner.
5. Insert a wire with an approx. diameter of 1.4 mm
{0.055 in} or a paper clip into the body hole of the
oil pump chain tensioner with the plunger
pressed.
Note
• The wire or paper clip secures the plunger,
and the tension can be released.
6. Remove the oil pump chain tensioner.
7. Remove the oil pump chain and balancer shaft
sprocket as a single unit.
8. Remove the oil pump driven sprocket.
End Of Sie
OIL PUMP CHAIN TENSIONER
OIL PUMP CHAIN
BEFORE PRESSING
AFTER PRESSING
OIL PUMP CHAIN TENSIONER
OIL PUMP CHAIN TENSIONER
PLUNGER
OIL PUMP DRIVE
SPROCKET
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WIRE OR
PAPER CLIP
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MECHANICAL
01-10–14
CYLINDER HEAD DISASSEMBLY (I)
id011000500400
Caution
• If the camshaft is rotated with the timing chain removed and the piston at the top dead center
position, the valve may contact the piston and the engine could be damaged. When rotating the
camshaft with the timing chain removed, rotate it after lowering the piston from the top dead
center position.
• When rotating the camshaft using a
wrench on the cast hexagon, the wrench
may contact the rocker arm and damage
the rocker arm. To prevent damage to the
rocker arm when holding the camshaft on
the cast hexagon, use a wrench on the
rear side of the engine as shown in the
figure to secure a clearance between the
cam.
Note
• Width at the cast hexagon of the camshaft is
22—24 mm {0.87—0.94 in}.
CAMSHAFT
WRENCH
CAST HEXAGON
ROCKER ARM
CONTACT
ENGINE REAR
DOES NOT CONTACT
SECURE CLEARANCE
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22
—
24 mm
{0.87
—
0.94 in}
CAMSHAFT
CAST HEXAGON
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MECHANICAL
01-10–15
01-10
1. Disassemble in the order indicated in the table.
.
2
1
3
4
6
R
R
WATER
PUMP
R
7
8
9
WITH OIL COOLER
WITHOUT OIL COOLER
5
10
8
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1
Electric variable valve timing actuator, hydraulic
variable valve timing actuator
(See 01-10-16 Electric Variable Valve Timing
Actuator, Hydraulic Variable Valve Timing Actuator
Disassembly Note.)
2
OCV
3
Camshaft cap
(See 01-10-16 Camshaft Cap Disassembly Note.)
4
Camshaft
5
OCV oil filter
6
Rocker arm
(See 01-10-16 Rocker Arm Disassembly Note.)
7
HLA
(See 01-10-16 HLA Disassembly Note.)
8
Water inlet pipe
9
Cylinder head
(See 01-10-16 Cylinder Head Disassembly Note.)
10
Cylinder head gasket
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