Mazda engine L8, LF, L3. Manual — part 12
B–28
ENGINE
25. Install the engine front cover upper blind plug.
Tightening torque:
10 N·m {1.0 kgf·m, 7.4 ft·lbf}
26. Install the cylinder block lower blind plug.
Tightening torque:
20 N·m {2.0 kgf·m, 14.8 ft·lbf}
27. Install the new engine front cover lower blind
plug.
Tightening torque:
12 N·m {1.2 kgf·m, 8.9 ft·lbf}
End Of Sie
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ENGINE
B–29
B
CYLINDER BLOCK (I) ASSEMBLY
A6E242402000E09
1. Assemble in the order indicated in the table.
2.
.
AME2224E039
1
Oil jet valve
2
Upper main bearing, thrust bearing
3
Crankshaft
4
Lower main bearing, thrust bearing
5
Main bearing cap
(See
B–30 Main Bearing Caps Assembly Note
)
6
Piston ring
(See
B–30 Piston Ring Assembly Note
7
Connecting rod, Piston assembly
(See
8
Upper connecting rod bearing
(See
B–31 Connecting Rod Bearing Assembly
)
9
Lower connecting rod bearing
(See
B–31 Connecting Rod Bearing Assembly
)
10
Connecting rod cap
(See
B–31 Connecting Rod Cap Assembly Note
11
Engine balancer (L3 (with variable valve timing
mechanism))
(See
B–31 Balancer Unit Assembly Note
12
Adjustment shim
B–30
ENGINE
Main Bearing Caps Assembly Note
1. Install the main bearing caps in the order
indicated in the figure.
Tightening torque:
(1) 44—46 N·m
{4.5—4.6 kgf·m, 32.5—33.9 ft·lbf}
(2) 175
°°°°
—185
°°°°
Piston Ring Assembly Note
1. Install the two oil control ring segments and
spacer.
2. Verify that the second ring is installed with
scraper face side downward.
3. Verify that the top ring is installed with scraper
face side inner of upper.
Piston Assembly Note
1. Position the end gap of each ring as indicated in
the figure.
2. Insert the piston and connecting rod into the
cylinder with the arrow mark to front of the engine.
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ENGINE
B–31
B
Connecting Rod Bearing Assembly Note
1. Install the connecting rod bearing to the
connecting rod and connecting rod caps, as
shown in the figure.
Connecting Rod Cap Assembly Note
Caution
••••
When assembling the connecting rod caps, align the broken, rough faces of the connecting rods
and connecting rod caps.
1. Tighten the connecting rod bolts in two steps.
Tightening torque:
(1) 26—32 N·m
{2.7—3.2 kgf·m, 19.2—23.6 ft·lbf}
(2) 80
°°°°
—100
°°°°
Balancer Unit Assembly Note
1. Confirm by visual inspection that there is no damage to the balancer unit gear and verify that the shaft turns
smoothly.
•
If there is any damage or malfunction, replace the balancer unit.
Caution
••••
Due to the precision interior construction of the balancer unit, it cannot be disassembled.
2. Rotate the crankshaft clockwise and align the No. 1 cylinder to the TDC.
3. Install the adjustment shim to the seat face of the balancer unit.
4. With the balancer unit marks at the exact top
center, assemble the unit to the cylinder block.
5. Insert a screwdriver into the crankshaft No. 1
crankweight area and set both the rotation and
the thrust direction with the screwdriver, using a
prying action, as shown.
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AME2224E061
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