Remove all gasket material from the lubricating oil pump
body and cover.
Warning: Carefully remove the retainer plug (1). The
pressure relief valve spring (4) is under compression.
Use the light duty puller kit, Part No. 3375784, or equiv-
alent to remove the retainer plug (1).
Remove the valve disc (2), the washer (3), and the pres-
sure relief valve spring (4).
Cleaning and Inspection
Inspect the parts for damage.
Use valve spring tester, Part No. 3375182, to measure
the relief valve spring force.
Compress the spring to a height of 29.0 mm [1.145 inch].
NOTE: The force required to compress the spring must be:
• Minimum 260 Newtons [59 lb]
• Maximum 320 Newtons [72 lb]
Section 2 - Lubricating System High Lubricating Oil Pressure Relief Valve (2-14)
N14 Page 2-35