Drive Belt Auto Tensioner Inspection; Valve Clearance; Valve Clearance Inspection - Mazda 6 2002 Workshop Manual

DRIVE BELT AUTO TENSIONER INSPECTION

1. Remove the drive belt. (See
2. Verify that the drive belt auto tensioner moves
smoothly in the operational direction.
• Replace the drive belt auto tensioner if
necessary.
3. Turn the drive belt auto tensioner pulley by hand
and verify that it rotates smoothly.
• Replace the drive belt auto tensioner if
necessary.
4. Install the drive belt. (See
REPLACEMENT.)
End Of Sie

VALVE CLEARANCE INSPECTION

1. Disconnect the negative battery cable.
2. Remove the tire (RH).
3. Remove the splash shield (RH).
4. Remove the spark plugs. (See
5. Remove the high-tension lead.
6. Remove the oil control valve (OCV) connector.
7. Remove the ventilation hose.
8. Remove the cylinder head cover.
9. Verify that the engine is in cold condition.
10. Measure the valve clearance.
(1) Turn the crankshaft clockwise so that the No.1 piston is at TDC of the compression stroke.
(2) Measure the valve clearance at A in the
figure.
• If the valve clearance eceeds the space
the tappet. (See
CLEARANCE
Note
• Make sure to note the measured values for
choosing the suitable replacement tappets.
Standard [Engine cold]
IN: 0.22—0.28 mm {0.0087—0.0110 in}
(0.25± ± ± ± 0.03 mm {0.0098± ± ± ± 0.0011 in})
EX: 0.27—0.33 mm {0.0106—0.0130 in}
(0.30± ± ± ± 0.03 mm {0.0118± ± ± ± 0.0011 in})
(3) Turn the crankshaft 360° ° ° ° clockwise so that the No.4 piston is at TDC of the compression stroke.
(4) Measure the valve clearance at B in the figure.
• If the valve clearance eceeds the standard, replace the tappet. (See
ADJUSTMENT.)
Note
• Make sure to note the measured values for choosing the suitable replacement tappets.
Standard [Engine cold]
IN: 0.22—0.28 mm {0.0087—0.0110 in} (0.25± ± ± ± 0.03 mm {0.0098± ± ± ± 0.0011 in})
EX: 0.27—0.33 mm {0.0106—0.0130 in} (0.30± ± ± ± 0.03 mm {0.0118± ± ± ± 0.0011 in})
11. Install the cylinder head cover. (See
12. Install the ventilation hose.
13. Install the oil control valve connector.
14. Install the high-tension lead. (See
15. Install the spark plugs. (See
B–4
DRIVE BELT, VALVE CLEARANCE
B–3 DRIVE BELT
B–3 DRIVE BELT

VALVE CLEARANCE

G–10 SPARK PLUG
B–5 VALVE
ADJUSTMENT.)
B–17 Cylinder Head Cover Installation
G–11 HIGH-TENSION LEAD
G–10 SPARK PLUG
REPLACEMENT.)
REMOVAL/INSTALLATION.)
REMOVAL/INSTALLATION.)
REMOVAL/INSTALLATION.)
A6E221015980W01
A6E221212111W01
B–5 VALVE CLEARANCE
Note.)
AME2210W003
AME2212W001