Fuel Tank Inspection
NOTE:
- The two rollover valves built into the fuel tank and check valves (two-way) built into the rollover valves are inspected in this inspection.
- Follow "BEFORE SERVICE PRECAUTION" before performing any work operations to prevent fuel from spilling from the fuel system. (See BEFORE SERVICE PRECAUTION .)
- Remove the battery cover.
- Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [LF] .)
- Remove the fuel tank with the fuel pump unit. (See FUEL TANK REMOVAL/INSTALLATION .)
- Perform the following procedure to verify the fuel tank airtightness.
- Plug the fuel pump unit pipe, port B and port C.
- Apply a pressure of 3 kPa {23 mmHg, 0.9 inHg} to port A and wait for a while.
- Verify that there is no air leakage from the fuel tank.
- If there is airflow, replace the fuel tank.
- Plug the fuel pump unit pipe and port B.
- Level the fuel tank.
- Apply a pressure of 3 kPa {23 mmHg, 0.9 inHg} to port C and wait for a while.
- With the pressure still applied, verify that there is airflow from port A and the pressure is 0- 3 kPa {0-22 mmHg, 0- 0.8 inHg}
.
- If there is no airflow, replace the fuel tank.
- Apply a pressure of -0.5 kPa {-3.8 mmHg, -0.1 inHg} to port C and wait for a while.
- With the pressure still applied, verify that there is airflow from port A and the pressure is -0.5- 0 kPa {-3.8- 0 mmHg, -0.2- 0 inHg}
.
- If there is no airflow, replace the fuel tank.
- If there is airflow, place the fuel tank upside down.
- Apply a pressure of 3 kPa {23 mmHg, 0.9 inHg} to port C and wait for a while.
- With the pressure still applied, verify that there is no airflow from port A.
- If there is airflow, replace the fuel tank.