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2008 - MX-5 - Engine

FUEL TANK INSPECTION [LF]

NOTE:

1. Follow “BEFORE SERVICE PRECAUTION” before performing any work operations to prevent fuel from spilling from the fuel system. (See BEFORE SERVICE PRECAUTION [LF].)
2. Remove the battery cover.
3. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [LF].)
4. Remove the fuel tank with the fuel pump unit. (See FUEL TANK REMOVAL/INSTALLATION [LF].)
5. Perform the following procedure to verify the fuel tank airtightness.
a. Plug the fuel pump unit pipe, port B and port C.

b. Apply a pressure of 3 kPa {23 mmHg, 0.9 inHg} to port A and wait for a while.
c. Verify that there is no air leakage from the fuel tank.
  • If there is airflow, replace the fuel tank.

6. Plug the fuel pump unit pipe and port B.
7. Level the fuel tank.
8. Apply a pressure of 3 kPa {23 mmHg, 0.9 inHg} to port C and wait for a while.
9. 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}.
10. Apply a pressure of –0.5 kPa {–3.8 mmHg, –0.1 inHg} to port C and wait for a while.
11. 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}.
12. Apply a pressure of 3 kPa {23 mmHg, 0.9 inHg} to port C and wait for a while.

13. With the pressure still applied, verify that there is no airflow from port A.


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