Hino S5-LJ05E04A Workshop Manual page 319

PRESS
VALVE GUIDE END
FACE TO BE FLUSH
WITH SST
UPPER SURFACE
VALVE GUIDE
VALVE STEM SEAL
SPRING SEAT
(LOWER)
SPRING
APPLY OIL BEFORE
MOUNTING
RUBBER
ENGINE MECHANICAL (J05E)
(3) Apply the small amount of lapping compound on the contact sur-
face of the valve and valve seat.
(4) Use the SST to tap and lap the valve while rotating it.
SST:
SHTS021270900092
2. MOUNTING THE VALVE GUIDE
(1) Apply engine oil to the periphery of the valve guide.
(2) If a new valve guide is installed, set the SST to the valve seat to
SST
prevent slanted insertion of the valve guide during press-fitting.
SST:
! CAUTION
• During press-fitting with the SST, use care not to damage a
valve stem of the valve guide.
• Before press-fitting, make sure to apply engine oil to the
periphery of the valve guide.
•
Be careful not to pry the valve guide end when press-fitting.
SHTS021270900093
3. MOUNTING THE VALVE STEM SEAL
(1) Mount the spring seat (lower) before the valve stem seal.
(2) Apply engine oil to the lip and inner surface of the valve stem
seal. Use the SST to tap in the valve stem seal until the SST
comes in contact with the spring seat (lower).
SST:
SST
! CAUTION
• After assembling the valve stem seal, check for deformation,
crack and inclination of rubber and detached spring.
•
After fitting valve stem seals, check rubbers for deformation,
cracks, inclination or spring dislodgement.
•
Note that dirt or fouling on the valve or in the valve guide
may damage a valve stem seal during insertion of the valve.
VALVE STEM
SEAL
SHTS021270900094
S0943-11020
Valve lapping tool
S0947-11520
Guide
S0947-22100
Bar
10–43