Make all tests at slow idle speed. For models with fuel return line, pinch off return line. For vacuum test, connect vacuum gauge to inlet side of pump.
| Application | Specification | |
|---|---|---|
| Mechanical Pump | ||
| Pressure (at idle) | 4.0-6.5 psi (.28-.46 kg/cm 2 ) | |
| Vacuum | Minimum 15 in. Hg | |
| Volume | 1 pint (.5L) in 30 sec. | |
| Electric Pump Pressure | ||
| MFI & SFI | 28-36 psi (2.0-2.6 kg/cm 2 ) | |
| TBI | 9-13 psi (.63-.91 kg/cm 2 ) | |
FUEL PUMP PERFORMANCE