Oil Pressure Gauge
- To test accuracy of oil pressure gauge, use a variable resistance tester (J-24538 or equivalent).
- Disconnect wire from sending unit on engine. Turn ignition switch "ON". Connect one lead of tester to ground and other leading to sending unit wire. Compare results with specifications shown in table.
OIL PRESS. GAUGE TEST READINGS
| Application | psi | Ohms |
|---|---|---|
| CJ Models | 0 | 234-246 |
| 20 | 149-157 | |
| 40 | 100.5-105.5 | |
| 60 | 65-69 | |
| 80 | 32.5-34.5 | |
| Cherokee, Wagoneer & J Models | 0 | 69-77 |
| 10 | 35-38 | |
| 60 | 13-15 | |
| 80 | 9.5-10.5 |