Mazda 6 Service Manual: Nonreturn valve inspection
1. Remove the fuel pump unit. (See FUEL PUMP UNIT REMOVAL/INSTALLATION.)
2. Siphon the fuel from the fuel tank.
Note
- Nonreturn valve is integrated in the fuel tank.
- The nonreturn valve is normally closed by the spring force.
3. Verify that the nonreturn valve is closed.
- If the nonreturn valve is stuck open and dose not open even when pulled up by a finger, replace the fuel tank.
Fuel tank inspection
Caution
Disconnecting/connecting the quick release connector without
cleaning it may possibly cause damage to the fuel pipe and quick release
connector. Always clean the quick release connec ...
Fuel line pressure inspection
Warning
Fuel line spills and leakage are dangerous. Fuel can ignite and
cause serious injuries or death. Fuel can also irritate skin and eyes. To
prevent this, always complete the BEFORE REP ...
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Mazda 6 Service Manual: Road test
Warning
When performing a road test, be aware of other vehicles, people,
impediments, etc. to avoid an accident.
Note
When the legal speed limit must be exceeded, use a chassis
dynamomenter instead of performing a road test.
Road Test Preparation
1. Inspect the engine coolant le ...
Mazda 6 Service Manual: Clock spring adjustment
Note
The adjustment procedure is also specified on the caution label of
the clock spring.
1. Set the front wheels straight ahead.
Caution
The clock spring will break if over-wound. Do not forcibly turn
the clock spring.
2. Turn the clock spring clockwise until it stops.
3. Tu ...