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Pump & Relief Valve
- Check air pump belt for condition and tension. Belt tension should be 60-100 lbs. with a used belt and 100-150 lbs. with a new belt. Do not pry on pump housing when tightening belt.
AIR PUMP RELIEF VALVE PRESSURE
| Application |
Pressure Psi (kg/cm2
) |
| Celica, Corona, Pickup |
5.0-6.4 (.35 -.44) |
| Corolla |
4.7-6.8 (.33 -.48) |
| Land Cruiser |
5.7-8.5 (.40 -.60) |
| Tercel |
3.3-5.6 (.23 -.39) |
- Disconnect air outlet hose at check valve and install pressure gauge. Start engine, warm to operating temperature, and raise engine speed until relief valve operates. Check that pressure is correct.