TM 5-3825-270-23&P
FIELD MAINTENANCE
ENGINE OIL PRESSURE GAUGE READS LOW OR READS HIGH
INITIAL SETUP:
Tools and Special Tools
References (cont.)
Tool Kit, General Mechanic's: Automotive
Field Level Preventive Maintenance Checks And
(WP 0225, Table 1, Item 12)
Services (PMCS) (WP 0069)
Water Distributor Operator Manual (TM
5-3825-270-10)
References
Main Control Panel Engine Oil Pressure Gauge
Replacement (WP 0090)
Equipment Condition
Engine Oil Pressure Testing (WP 0122)
Engine OFF. (TM 5-3825-270-10)
Engine Replacement (WP 0128)
TROUBLESHOOTING PROCEDURE
ENGINE OIL PRESSURE GAUGE READS LOW OR READS HIGH
STEP 1
Is engine oil pressure high with engine at normal operating temperature?
NOTE
Engine pressure may read high when engine is cold or not warmed to normal operating
temperature. Normal engine operating temperature is 160 to 180F (71 to 82 C).
Normal engine oil pressure is 29-56 psi (199-386 kPa).
1.
Start engine and allow to warm to normal operating temperature. (TM 5-3825-270-10)
2.
Observe ENGINE TEMP gauge.
ENGINE TEMP GAUGE
Figure 1. Engine Temp Gauge - Step 1.
3.
Observe ENGINE OIL PRESSURE gauge.