2002 MAZDA 6 belt

B2–10
TIMING BELT
.
N·m {kgf·m, ft·lbf} 7.6—10.8 N·m
{80—110 kgf·cm,
69.1—95.5 in·lbf}
7.9—10.7 N·m
{80—110 kgf·cm,
69.5—95.4 in·lbf}
23—32
{2.3—3.3, 17—23}19—25
{1.9—2.6, 14—18} 74.5—104.9
{7.6—10.6,
55.0—76.6}
9
8
75
4
3
1
2
10
6
A6E2316W100
1 Engine cover
2 No.3 engine joint bracket
(See B2–11 No.3 Engine Joint Bracket Removal
Note)
(See B2–14 No.3 Engine Joint Bracket Installation
Note)
3 Upper timing belt cover
4Drive belt
(See B2–4 DRIVE BELT REPLACEMENT)
5 Crankshaft pulley cover
6 Crankshaft pulley
(See B2–14 Crankshaft Pulley Installation Note)7 Lower timing belt cover
(See B2–11 Lower Timing Belt Cover Removal
Note)
8 Guide plate
9 Timing belt
(See B2–11 Timing Belt, Timing Belt Auto Tensioner
Removal Note)
(See B2–12 Timing Belt, Timing Belt Auto Tensioner
Installation Note)
10 Timing belt auto tensioner
(See B2–11 Timing Belt, Timing Belt Auto Tensioner
Removal Note)
(See B2–12 Timing Belt, Timing Belt Auto Tensioner
Installation Note)

TIMING BELT
B2–11
B2
No.3 Engine Joint Bracket Removal Note
1. Suspend the engine using the SST.
2.
Lower Timing Belt Cover Removal Note
Caution
•The timing belt cover could be damaged
easily. Hold the timing belt cover at the
locations indicated in the figure and
remove the crankshaft position sensor
harness slowly.
Timing Belt, Timing Belt Auto Tensioner Removal Note
1. Turn the crankshaft clockwise and align the timing
marks as shown.
Caution
•Forcefully twisting the belt, turning it
inside out, or allowing oil or grease on it
will damage the belt and shorten its life.
•After removing the timing belt, do not
move the crankshaft and/or camshaft
from this position because it can cause
the valve and piston to come into
contact.
2. Remove the timing belt auto tensioner.
3. Mark the timing belt rotation on the belt for proper
reinstallation.
49 E017 5A0
A6E2316W101
A6E2316W102
TIMING MARK TIMING MARK
TIMING MARK
A6E2316W103
25 mm {1.0 in} MIN.
FAULTY FAULTY
FAULTY
FAULTY ROTATION
ARROW
A6E2316W104

B2–12
TIMING BELT
Timing Belt, Timing Belt Auto Tensioner Installation Note
1. Measure the tensioned rod projection length.
•If not as specified, replace the timing belt auto
tensioner.
2. Inspect the timing belt auto tensioner for oil
leakage.
•If not as specified, replace the timing belt auto
tensioner.
Projection (free length)
12.9—14.6 mm {0.508—0.574 in}
Caution
•Placing the timing belt auto tensioner
horizontally can cause oil leakage and
damage the timing belt auto tensioner. Place the timing belt auto tensioner vertically when using a
vise.
3. Verify the thrust of the timing belt auto tensioner
rod in the following order:
•If the timing belt auto tensioner rod is rigid
when it is pushed with a force of
approximately 235 N {24 kgf, 53 Ibf}, push it
down slowly and fix the pin in the hole.
•If there is no resistance on the timing belt auto
tensioner rod and it moves slightly when it is
pushed with a force of approximately 235 N
{24 kgf, 53 Ibf};
(1) Push it down slowly two or three times to the
bottom end of the rod.
(2) If the rod protrudes approximately 8.1 mm
{0.32 in}, verify that there is resistance on the
timing belt auto tensioner rod.
Caution
•To prevent damage to the inside of the
timing belt auto tensioner, do not press
down the timing belt auto tensioner rod
with a force greater than the specified
235 N {24 kgf, 53 lbf}.
Be careful that the rod does not touch the
bottom.
•If the timing belt auto tensioner rod
projection is restored, push it down slowly and fix the pin in the hole.
—If the resistance is not restored, replace the timing belt auto tensoner.
A6E2316W105
PIN
A6E2316W106

TIMING BELT
B2–13
B2
Caution
•To prevent the bolts (M8 x 1.25) from damaging the fuel injection pump and pulley, do not fully
tighten the fixing bolts. If it contacts the pulley surface, it will damage the pulley.
4. Verify that all timing marks are correctly aligned.
•If not, align all timing marks according to the
procedure below.
5. Fix the camshaft pulley to the cylinder head using
bolt (M8 x1.25).
6. Fix the injection pump pulley to the bracket using
two bolts (M8 x1.25).
Caution
•Turn the crankshaft in the direction
which will prevent the TDC and BDC from
being passed. Otherwise it can cause the
valve and piston to come into contact.
(1) Turn the crankshaft and set it at an angle of 45° or more away from the TDC and BDC.
(2) Align the timing marks of the camshaft pulley.
(3) Align the timing marks of the injection pump pulley.
(4) Turn the crankshaft and align the timing marks of the timing belt pulley.
7. Install the timing belt on the pulleys in the order
shown below.
(1) Timing belt pulley
(2) Idler
(3) Supply pump pulley
(4) Camshaft pulley
(5) Water pump pulley
(6) Tensioner
8. Remove the supply pump pulley fixing bolts and
camshaft pulley fixing bolt (M8 x 1.25).
9. Hand tighten the timing belt auto tensioner bolts
in the order A to B as indicated in the figure.
10. Tighten the timing belt auto tensioner bolts in the
order A to B as indicated in the figure.
Tightening torque
19—25 N·m {1.9—2.6 kgf·m, 14—18 ft·lbf}
11. Remove the pin from the timing belt auto
tensioner to apply tension to the belt.
12. Turn the crankshaft clockwise twice, and align the
timing marks.
13. Verify that all timing marks are correctly aligned.
•If not as specified, repeat from Timing Belt,
Timing Belt Auto Tensioner Removal Note.
TIMING MARK
TIMING MARKTIMING MARK
M8 1.25
BOLT
M8 1.25
BOLT
CAMSHAFT
PULLEYINJECTION
PUMP
PULLEY
A6E2316W107
5
43
1
2
6
A6E2316W108
A
B
A6E2316W109

B2–14
TIMING BELT
Crankshaft Pulley Installation Note
1. Tighten the bolts in the order shown.
Tightening torque
23—32 N·m {2.3—3.3 kgf·m, 17—23 ft·lbf}
No.3 Engine Joint Bracket Installation Note
1. Tighten the No.3 engine joint bracket bolt and nut
in the order shown.
Tightening torque
74.5—104.9 N·m {7.6—10.6 kgf·m,
55.0—76.6 ft·lbf}
7
5
4
3
6
1
2
A6E2316W110
12
A6E2316W111

CYLINDER HEAD GASKET
B2–15
B2
End Of Sie
CYLINDER HEAD GASKET REPLACEMENTA6E231810271201
Warning
•Fuel vapor is hazardous. It can very easily ignite, causing serious injury and damage. Always keep
sparks and flames away from fuel.
•Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and
damage. Fuel can also irritate skin and eyes. To prevent this, always complete the “Fuel Line
Safety Procedure”. (See F2–45 Fuel Line Safety Procedures.)
1. Remove the timing belt. (See B2–9 TIMING BELT REMOVAL/INSTALLATION.)
2. Remove the vacuum pump. (See P–13 VACUUM PUMP REMOVAL/INSTALLATION (MZR-CD (RF
TURBO)).)
3. Remove the P/S oil pump with the oil hose still connected. Position the P/S oil pump so that it is out of the way.
Use wire or rope to secure. (See N–16 POWER STEERING OIL PUMP (MZR-CD (RF Turbo)) REMOVAL/
INSTALLATION.)
4. Remove the turbocharger. (See F2–57 EXHAUST SYSTEM REMOVAL/INSTALLATION.)
5. Remove all the glow plugs. (See F2–42 GLOW PLUG REMOVAL/INSTALLATION.)
6. Remove in the order shown in the table.
7. Install in the reverse order of removal.
8. Inspect valve clearance. (See B2–5 VALVE CLEARANCE INSPECTION.)
9. Inspect the engine oil level.
•If necessary, add oil. (See D–8 ENGINE OIL INSPECTION.)
10. Inspect the compression. (See B2–8 COMPRESSION INSPECTION.)
11. Start the engine and:
(1) Inspect the pulleys and the drive belt for runout and contact.
(2) Inspect the engine oil, engine coolant, and fuel leakage.
(3) Inspect the idle speed. (See F2–34 IDLE SPEED INSPECTION.)
CYLINDER HEAD GASKET

B2–24
FRONT OIL SEAL
FRONT OIL SEAL REPLACEMENTA6E2320106022011. Remove the timing belt. (See B2–9 TIMING BELT REMOVAL/INSTALLATION.)
2. Remove in the order shown in the table.
3. Install in the reverse order of removal.
.
Timing Belt Pulley Lock Bolt Removal/Installation Note
1. Hold the timing belt pulley using the SSTs.
Timing Belt Pulley Removal Note
1. Remove the timing belt pulley using the SST.
FRONT OIL SEAL
1 Timing belt pulley lock bolt
(See B2–24 Timing Belt Pulley Lock Bolt Removal/
Installation Note)
2 Timing belt pulley
(See B2–24 Timing Belt Pulley Removal Note)
3Key
4 Front oil seal
(See B2–25 Front Oil Seal Removal Note)
(See B2–25 Front Oil Seal Installation Note)
SST
SST
SST
R
OILOIL
167—176 {17.0—18.0, 123—130}
N·m {kgf·m, ft·lbf}
3
1
2
4
A6E2320W100
49 G011 105
49 S120 710
A6E2320W101
49 S120 215B
A6E2320W102

ENGINE
B2–27
B2
ENGINE REMOVAL/INSTALLATIONA6E232401001201
Warning
•Fuel vapor is hazardous. It can very easily ignite, causing serious injury and damage. Always keep
sparks and flames away from fuel.
•Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injures or death and
damage. Fuel can also irritate skin and eyes. To prevent this, always complete the “Fuel Line
Safety Procedure”. (See F2–45 Fuel Line Safety Procedures.)
1. Disconnect the negative battery cable.
2. Drain the engine coolant, engine oil, and transaxle oil.
3. Remove the radiator.
4. Remove the engine cover. (See B2–9 TIMING BELT REMOVAL/INSTALLATION.)
5. Remove the air cleaner and air hose. (See F2–36 INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.)
6. Disconnect the fuel hose. (See F2–45 BEFORE REPAIR PROCEDURE.)
7. Remove the front pipe. (See F2–57 EXHAUST SYSTEM REMOVAL/INSTALLATION.)
8. Remove the battery and tray. (See G–5 BATTERY REMOVAL/INSTALLATION.)
9. Remove the shift cable, select cable and clutch release cylinder related to the transaxle. (See J2–7 MANUAL
TRANSAXLE REMOVAL/INSTALLATION.)
10. Remove the clutch release cylinder.
11. Remove the vacuum hose and the heater hose.
12. Disconnect the P/S oil pump pressure pipe and P/S oil pump relief hose from the P/S oil pump side. (See N–16
POWER STEERING OIL PUMP (MZR-CD (RF Turbo)) REMOVAL/INSTALLATION.)
Note
•The P/S oil pump will not be removed from the engine.
13. Remove the A/C compressor with the pipe still connected. Position the A/C compressor so that it is out of the
way. Use wire or rope to secure it. (See U–11 A/C COMPRESSOR REMOVAL/INSTALLATION.)
14. Remove the joint shaft.
15. Remove the front drive shaft (LH) from the transaxle.
16. Remove in the order indicated in the table.
17. Install in the reverse order of removal.
18. Fill the engine coolant, engine oil, and transaxle oil.
19. Bleed the air from the fuel line. (See F2–45 AFTER REPAIR PROCEDURE.)
20. Start the engine and:
•Inspect the pulleys and the drive belt for runout and contact.
•Inspect the engine oil, engine coolant transaxle oil, P/S fluid, and fuel for leakage.
•Inspect the idle speed. (See F2–34 IDLE SPEED INSPECTION.)
21. Perform a road test.
22. Reinspect the engine oil, engine coolant, transaxle oil, and P/S fluid levels.
ENGINE