Drive Belt Auto Tensioner Inspection [Lf]; Valve Clearance Inspection [Lf] - Mazda 3 Workshop Manual

Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes

DRIVE BELT AUTO TENSIONER INSPECTION [LF]

1. Remove the drive belt. (See
2. Verify that the generator drive belt auto tensioner moves smoothly in the operational direction.
• If it does not move smoothly, replace the generator drive belt auto tensioner.
3. Turn the generator drive belt auto tensioner pulley by hand and verify that it rotates smoothly.
• If it does not move smoothly, replace the generator drive belt auto tensioner.
4. Install the generator drive belt. (See

VALVE CLEARANCE INSPECTION [LF]

1. Remove the plug hole plate and bracket (See
2. Remove the battery cover (See
3. Disconnect the negative battery cable.
4. Disconnect the wiring harness.
5. Remove the ignition coils. (See
6. Remove the ventilation hose.
7. Remove the cylinder head cover.
8. Verify that the engine is cold.
9. 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.
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DRIVE BELT REPLACEMENT
DRIVE BELT REPLACEMENT
PLUG HOLE PLATE REMOVAL/INSTALLATION
BATTERY REMOVAL/INSTALLATION
IGNITION COIL REMOVAL/INSTALLATION
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B3E011015980W01
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