ENGINE MECHANICAL
SERVICE MANUAL NUMBER 22
90-860074--1 FEBRUARY 2002 Page 3A-85
Disassembly
1. Lock the pressure relief valve assembly in a soft-jawed vise.
WARNING
Use caution when removing or installing snap-ring. There is high spring pressure
against cap. Wear safety glasses.
2. Put on safety glasses.
3. Push cap in and hold. Remove snap-ring. Release spring pressure slowly.
70285
70284
a
b
c
a-Cap
b-Snap-Ring
c-Valve Assembly (Seat/Body)
4. Remove cap, spring or springs, and relief valve from bore of the valve assembly.
NOTE: Some oil pressure relief valves have only one spring.
70283
a
b
c
d
a-Cap
b-Spring (Inner - Present If Dual Spring Equipped)
c-Spring
d-Relief Valve
Cleaning
1. Clean gaskets from cylinder block and pan flanges.
2. Wash all parts in cleaning solvent and dry with compressed air.
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