COMPRESSION INSPECTION
Warning
1. Verify that the battery is fully charged.
2. Warm up the engine to the normal operating temperature.
3. Stop the engine and allow it to cool off for about 10 min.
4. Perform Fuel Line Safety Procedures. Leave the fuel pump relay removed.
(See BEFORE REPAIR
PROCEDURE.)
Warning
5. Remove the ignition coil connector.
6. Remove the spark plugs. (See SPARK PLUG REMOVAL/INSTALLATION.)
7. Connect a compression gauge into the spark plug hole.
8. Fully depress the accelerator pedal and crank the engine.
9. Note the maximum gauge reading.
10. Inspect each cylinder as above.
or more, add a small amount of engine oil through the spark plug hole. Then measure the compression pressure and perform the respective operations for the following cases.
- If the compression increases, the piston, the piston rings, or cylinder wall may be worn and overhaul is required.
- If the compression stays low, a valve may be stuck or improperly seated and overhaul is required.
- If the compression in adjacent cylinders stays low, the cylinder head gasket may be damaged or the cylinder head distorted and overhaul is required.
Compression
kPa {kgf/cm2, psi} [rpm]
kPa {kgf/cm2, psi} [rpm]
kPa {kgf/cm2, psi} [rpm]
11. Disconnect the compression gauge.
12. Install the spark plugs. (See SPARK PLUG REMOVAL/INSTALLATION.)
13. Connect the ignition coil connector.
14. Install the fuel pump relay. (See BEFORE REPAIR PROCEDURE.)
Mazda 6 Service Manual: Battery Recharging
NOTE
Before performing maintenance or recharging the battery, turn off all
accessories and stop the engine.
To disconnect the battery, remove the negative cable first. Install it
last when connecting the battery.
Be sure to remove the caps before recharging the battery.
I ...
Mazda 6 Service Manual: Seat Belt Maintenance
1. Clean the soiled area by lightly dabbing it with a soft cloth soaked in a
mild detergent (approx. 5%) diluted with water.
2. Wipe off the remaining detergent using a cloth soaked in clean water and wrung
out well.
3. Before retracting seat belts which have been pulled out for cleaning, dry ...