timing belt MAZDA 6 2002 Suplement Owner's Guide

TROUBLESHOOTING
F2–217
F2
NO.21 ENGINE NOISEA6E408018881223
Diagnostic Procedure
21 ENGINE NOISE
DESCRIPTION•Engine noise under hood.
POSSIBLE
CAUSE•Engine internal damage
•Timing belt displacement
•Fuel injector malfunction
•Loose attaching bolts or worn parts
•Improper drive belt tension
•Air leakage from intake-air system
•Incorrect injection timing
•Erratic signal from CKP sensor
•Erratic signal from CMP sensor
•Fuel pressure sensor or related circuit malfunction
•Boost sensor or related circuit malfunction
•Accelerator position sensor or related circuit malfunction
•MAF/IAT sensor or related circuit malfunction
•ECT sensor or related circuit malfunction
•EGR system or malfunction
•IAT sensor No.2 or related circuit malfunction
•Vacuum leakage
•Suction control valve malfunction (built-in supply pump)
•Air leakage from intake-air system
•Air in power steering fluid line
•Turbocharger operating noise
•Solenoid valve operating noise
Warning
The following troubleshooting flow chart contains the fuel system diagnosis and repair
procedures. Read the following warnings before performing the fuel system services:
•Fuel vapor is hazardous. It can 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 injury or death
and damage. Fuel can also irritate skin and eyes. To prevent this, always complete “BEFORE
REPAIR PROCEDURE” and “AFTER REPAIR PROCEDURE” described in this manual.
Note
•PCM checks fuel injection amount during a set interval while idling, and automatically corrects it to
maintain engine efficiency. It is normal that engine noise and vibration might be a little louder during
this process.
STEP INSPECTION RESULTS ACTION
1 Is squeal, click or chirp sound present? Yes Inspect engine oil level, solenoid valves installation or
drive belt.
No Go to next step.
2 Is rumble or grind sound present? Yes Inspect drive belt tension or power steering system
fluid level.
If okay, perform power steering fluid line air bleed.
No Go to next step.
3 Is rattle sound present? Yes Inspect location of rattle for loose parts.
No Go to next step.
4 Is hiss sound present? Yes Inspect for vacuum leakage and intake-air system
leakage.
No Go to next step.
5 Is rap or roar sound present? Yes Inspect exhaust system or loose parts.
No Go to next step.

STARTING SYSTEM
G–9
G
STARTER REMOVAL/INSTALLATIONA6E471418400202
Warning
•When the battery cables are connected, touching the vehicle body with starter terminal B will
generate sparks. This can cause personal injury, fire, and damage to the electrical components.
Always disconnect the battery negative cables before performing the following operation.
1. Disconnect the negative battery cable.
2. Remove the plug hole plate. (L8, LF, and L3 engine models)
3. Remove the engine cover. (MZR-CD (RF Turbo) engine model) (See B2–9 TIMING BELT REMOVAL/
INSTALLATION.)
4. Remove the air cleaner assembly. (L8, LF, and L3 engine models).
5. Remove the under cover.
6. Remove the oil filter and oil cooler component with the cooling hose connected. Position the oil filter and oil
cooler component so that it is out of the way. (L3 engine model (4WD))
7. Remove the solenoid valve assembly with the vacuum hose and the connector connected. Position the
solenoid valve assembly so that it is out of the way. (MZR-CD (RF Turbo) engine model)
8. Remove the release cylinder with the oil pipe connected. Position the release cylinder so that it is out of the
way. (MTX)
9. Remove in the order indicated in the table.
10. Install in the reverse order of removal.
STARTING SYSTEM

TD–2
TECHNICAL DATA
ENGINEA6E931001001201
End Of Sie
LUBRICATION SYSTEMA6E931001001202
TECHNICAL DATA
ItemSpecification
Diesel engine
MZR-CD (RF Turbo)
MECHANICAL
Valve clearance
[engine cold](mm {in})IN0.12—0.18
{0.005—0.007}
(0.15±0.03 {0.006±0.0011})
EX0.32—0.38
{0.013—0.014}
(0.35±0.03 {0.014±0.0011})
Compression pressure(kPa {kgf/cm
2, psi}) [rpm]Standard3,500
{35.7, 507.7}
[250]
Minimum3,100
{31.6, 449.4}
[250]
Maximum difference
between cylinders196.1 {1.999, 28.44}
Cylinder head bolt length (mm {in})Standard 159.7—160.3 {6.288—6.311}
Maximum 161.0 {6.338}
Pushing distance of the front oil seal
(from the edge of the oil pump body)(mm {in})0—0.5
{0—0.019}
Pushing distance of the rear oil seal
(from the edge of the rear cover)(mm {in})0—0.5
{0—0.019}
Pushing distance of the camshaft oil seal
(from the edge of the cylinder head)(mm {in})0.5—1.5
{0.020—0.059}
Timing belt auto tensioner rod projection (free length) (mm {in})12.9—14.6
{0.508—0.574}
ItemSpecification
Diesel engine
MZR-CD (RF Turbo)
Oil pressure
(approximate quantity)
[oil temperature: 100°C {212°F}](kPa {kgf/cm
2, psi}) min [rpm]147 {1.5, 21} [1,000],
343 {3.5, 50} [3,000]
Oil capacity
(approximate quantity)Total (dry engine)
5.5 {5.8, 4.8}
(L {US qt, Imp qt})
Oil replacement
4.8 {5.1, 4.2}
(L {US qt, Imp qt})
Oil and oil filter replacement
5.0 {5.3, 4.4}
(L {US qt, Imp qt})