2
TM 5-2410-240-23-1
FIELD MAINTENANCE
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ENGINE LUBRICATION TESTS, INSPECTIONS, AND ADJUSTMENTS
002
5
Engine Oil Pressure Test
INITIAL SETUP
Tools and Special Tools
References
0
0
Tool Kit, General Mechanic's
WP 0053
0
(WP 0289, Item 51)
WP 0066
0
0
Adapter, Engine Oil Test Port
WP 0084
0
(WP 0289, Item 1)
WP 0085
0
0
Nipple, Engine Oil Test Port
Equipment Conditions
(WP 0289, Item 34)
0
0
Pressure Differential Gauge Kit
Machine parked (TM 5-2410-240-10)
0
(WP 0289, Item 86)
0
Estimated Time to Complete
0
Pressure Gauge (140 psi)
1.5 Hr
(WP 0289, Item 90)
0
0
Materials/Parts
0
Rag, wiping (WP 0290, Item 21)
0
Tag, marker (WP 0290, Item 30)
0
C AU T I O N
Do not operate engine with low oil pressure or contaminated engine oil. Engine damage
will result. If measured oil pressure is low, discontinue engine operation until problem is
corrected.
ENGINE OIL PRESSURE TEST
00025
Low Oil Pressure
00025
Following conditions will cause low oil pressure:
Oil level is low in crankcase.
Dilution of engine oil with fuel, water, orengine coolant will cause premature engine wear.
Incorrect oil specificaton for operating conditions.
i
Restriction of oil suction tube and screen. Oil suction tu e bent or restricted. Cracks or damaged joints allowing
b
air in oil supply to oil pump.
Engine oil filter blocked or restricted.
Piston cooling jets operating incorrectly.
Rotors in oil pump are worn.
Oil pressure relief valve is operating incorrectly.
Camshaft bearings, connecting rod bearings, or crankshaft main bearings are worn.
Engine oil pressure gauge inaccurate.
0025-1
