Mazda Engine LF, L3. Manual - part 5

MECHANICAL 

01–10–3

01–10

ENGINE MOUNTING/DISMOUNTING

E5U011002000E02

1. Install the SSTs (arms) to the cylinder block holes 

as shown, and hand-tighten the bolts (part No.: 
9YA20-1003) or M10 

× 1.5T length 90 mm {3.55 

in}.

2. Assemble the SSTs (bolts, nuts and plate) to the 

specified positions.

3. Adjust the SSTs (bolts) so that less than 20 mm 

{0.79 in} of thread is exposed.

4. Make the SSTs (arms and plate) parallel by 

adjusting the SSTs (bolts and nuts).

5. Tighten the SSTs (bolts and nuts) to affix the 

SSTs firmly.

Warning

• Self-locking brake system of the engine 

stand may not be effective when the 
engine is held in an unbalanced position. 
This could lead to sudden, rapid 
movement of the engine and mounting 
stand handle and cause serious injury. 
Never keep the engine in an unbalanced 
position, and always hold the rotating 
handle firmly when turning the engine.

6. Mount the engine on the SST (engine stand).
7. Drain the engine oil into a container.
8. Install the oil pan drain plug.

• With washer

1. Install the oil pan drain plug with a new washer.

Tightening torque

30—41 N·m {3.1—4.1 kgf·m, 23—30 ft·lbf}

• Without washer

1. Inspect the seal rubber of the oil pan drain plug and make sure there are no cracks or damage.

— If necessary, replace the oil pan drain plug.

2. Clean the flange surface (seal rubber) on the oil pan drain plug, then install the oil pan drain plug.

Tightening torque

22—30 N·m {2.2—3.1 kgf·m, 16—22 ft·lbf}

DISMOUNTING

• Dismount in the reverse order of mounting.

End Of Sie

49 L010 102

B3E0110W127

49 L010 101

49 L010 104

49 L010 105

C3U0110E001

49 L010 101

49 L010 102

49 L010 104

49 L010 103

49 L010 105

PARALLEL

APPROX. 20 mm {0.79 in}

ENGINE

BOLT

E5U110ZW8S01

MECHANICAL 

01–10–4

TIMING CHAIN DISASSEMBLY

E5U011002000E03

1. Disassemble in the order indicated in the table.

.

SST

SST

R

R

R

R

WITH VARIABLE VALVE TIMING 
MECHANISM

9

8

7

4

1

2

6

18

17

15

16

12

5

13

11

3

14

19

10

WITHOUT A/C

E5U110ZE7S01

1

Oil level gauge (if equipped)

2

Spark plug

3

Cylinder head cover 

4

Crankshaft pulley lock bolt
(See 01–10–5 Crankshaft Pulley Lock Bolt 
Disassembly Note.)

5

Crankshaft pulley

6

Water pump pulley

7

Drive belt idler pulley (Without stretch-type A/C drive 
belt)

8

Engine front cover

9

Front oil seal
(See 01–10–5 Front Oil Seal Disassembly Note.)

10

 Chain tensioner
(See 01–10–5 Chain Tensioner Disassembly Note.)

11

 Tensioner arm

12

 Chain guide

13

Timing chain

14

Seal (With variable valve timing mechanism)

15

Oil pump chain tensioner 

16

Oil pump chain guide

17

Oil pump sprocket
(See 01–10–5 Oil Pump Sprocket Disassembly 
Note.)

18

Oil pump chain 

19

Crankshaft sprocket

MECHANICAL 

01–10–5

01–10

Engine Workshop Manual LF L3 (1866–1U–05H)

Crankshaft Pulley Lock Bolt Disassembly Note

1. Install the SST to the ring gear to lock the 

crankshaft against rotation.

Front Oil Seal Disassembly Note

1. Remove the oil seal using a screwdriver.

Chain Tensioner Disassembly Note

1. Unlock the chain tensioner ratchet using a 

suitable screw driver or equivalent tool.

2. Slowly press the tensioner piston.
3. Hold the chain tensioner piston with a 1.5 mm 

{0.06 in} wire or paper clip.

Oil Pump Sprocket Disassembly Note

1. Hold the oil pump sprocket using the SST.

End Of Sie

49 E011 1A0

D3U110ZE4003

E6U110ZWB044

TENSIONER PISTON

RATCHET

RACK

C3U0110W098

49 G032 354

B3E0110E054

MECHANICAL 

01–10–6

Engine Workshop Manual LF L3 (1866–1U–05H)

Revised 12/2005 (Ref. No. R145/05)

CYLINDER HEAD (I) DISASSEMBLY

E5U011002000E04

1. Disassemble in the order indicated in the table.

.

9

8

7

5

4

4

3

1

2

2

R

6

R

R

R

WITH VARIABLE VALVE TIMING MECHANISM

*

*

*

*: IF WASHER IS NOT INSTALLED TO THE ENGINE, INSTALL A NEW WASHER.

E5U110ZECL01

1

Camshaft sprocket lock bolt, variable valve timing 
actuator lock bolt (With variable valve timing 
mechanism)
(See 01–10–7 Camshaft Sprocket Lock Bolt, 
Variable Valve Timing Actuator Lock Bolt 
Disassembly Note .)

2

Camshaft sprocket, variable valve timing actuator 
(With variable valve timing mechanism)

3

Oil control valve (OCV) (with variable valve timing 
mechanism)

4

Camshaft cap 
(See 01–10–7 Camshaft Cap Disassembly Note.)

5

Camshaft

6

Tappet
(See 01–10–7 Tappet Disassembly Note.)

7

Cylinder head bolt
(See 01–10–8 Cylinder Head Bolt Disassembly 
Note.)

8

Cylinder head

9

Cylinder head gasket