Mazda engine L8, LF, L3. Manual - part 12

 

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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

AME2212W003

AME2212W012

AME2212W002

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 

B–30 Piston Assembly Note

)

8

Upper connecting rod bearing
(See 

B–31 Connecting Rod Bearing Assembly 

Note

)

9

Lower connecting rod bearing
(See 

B–31 Connecting Rod Bearing Assembly 

Note

)

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.

AME2224E052

AME2224E322

AME2224E323

AME2224E042

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.

AME2224E053

AME2224E061

AME2224E080

 

 

 

 

 

 

 

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