ENGINE MECHANICAL SERVICE MANUAL NUMBER 22
Page 3A-84 90-860074--1 FEBRUARY 2002
Oil Pressure Relief Valve
The oil pressure relief valve (oil pressure regulator valve) is installed vertically in the
underside of the crankcase.
Removal
1. Remove oil pan.
2. Clean old gasket material from area around relief valve.
3. Unscrew the valve assembly seat/body from the crankcase using a suitable tool. The
tool should engage the two slots opposite each other on the edge of the valve assembly.
NOTE: Locking compound is used during installation of the oil pressure relief valve
assembly. Area around the assembly may need to be heated to aid in removal.
70298
a
b
c
Typical
a-Example Of Suitable Tool
b-Valve Assembly
c-Slots
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