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Home >> Mercury >> 1981 >> Lynx Base, 2D Hatchback >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Tune-Up - 4 CYL >> Fuel Pump

Fuel Pump

Make all tests with engine at normal operating temperature and at idle speed with transmission in neutral. When making 1 0L pressure test pinch off pump-to-tank fuel return line.

Pressure
  1.6L 4.0-6.0 psi
2.5L 5.0-7.0 psi
Volume 1 pint in 30 sec.