ENGINE MECHANICAL SERVICE MANUAL NUMBER 22
Page 3A-86 90-860074--1 FEBRUARY 2002
Inspection
1. Replace complete valve assembly if spring is broken.
2. Replace complete valve assembly if valve is badly worn or sticking in bore.
3. The valve can be lapped into its seat using a grinding paste, if necessary to restore
pressure.
4. Ensure that valve slides freely in seat/body when coated with oil.
Assembly
1. Coat inside of oil pressure relief valve seat/body bore with SAE 30W engine oil. Liberally
oil coat remaining components.
2. Assemble valve, spring(s) (inner and outer springs, if dual spring equipped) and cap as
shown. Install parts into valve seat/body.
70284
70285
f
a
b
c
e
d
a-Relief Valve
b-Spring (Inner - Present If Dual Spring Equipped)
c-Spring (Referred To As Outer - If Dual Spring Equipped)
d-Cap
e-Snap ring
f-Valve Seat/Body
3. Push cap into bore and install snap-ring.
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