Fluid Pressure Testing
- Disconnect pressure hose from oil pump. See Fig 1 . Bleed air from system. Start engine and let it idle. Turn steering wheel several times until temperature reaches 122°F (50°C). Set engine idle speed to 1000 RPM.
- Close and open valve to measure oil pump pressure. If not within specifications, replace pump. See OIL PUMP PRESSURE SPECIFICATIONS table. Install pressure hose. Bleed system.
CAUTION:
DO NOT
leave valve on pressure gauge closed more than 10 seconds or damage to oil pump will result.
OIL PUMP PRESSURE SPECIFICATIONS
| Application | psi (kg/cm2 ) | |
|---|---|---|
| Colt | ||
| Valve Closed | 640-740 (45-52) | |
| Valve Open (Maximum) | 142 (10) | |
| Colt Vista | ||
| Valve Closed | 782-881 (55-62) | |
| Valve Open (Maximum) | 142 (10) | |