Hino S5-LJ05E04A, Руководство по ремонту

Страница: 313 / 647

ENGINE MECHANICAL (J05E) 10–37
OVERHAUL
EN01F02127090402009002
DISASSEMBLING THE VALVE SYSTEM
1. REMOVING THE CYLINDER HEAD ASSEMBLY
Reference: ENGINE MECHANICAL (J05E), CYLINDER HEAD
ASSEMBLY, REPLACEMENT, REMOVING THE CYLINDER
HEAD ASSEMBLY (Page 10-23)
2. PREPARATION
(1) Set the wooden board on the workbench and place the cylinder
head assembly on it.
! CAUTION
If the injector is mounted, be careful not to damage the nozzle
end.
NOTICE
When compressing the valve spring, place the valve flat to prevent
it from going down.
3. REMOVING THE CROSSHEAD
(1) Remove the crossheads from individual valves.
NOTICE
For storage, sort by cylinder number and by intake and exhaust.
4. REMOVING THE VALVE AND VALVE SPRING
(1) Use the SST to remove the valve spring retainer while compress-
ing the valve spring, removing the spring seat (upper) and valve
spring.
SST: S0947-01170
Valve spring press
! CAUTION
If eye bolts are used, fasten them via washers and use care not to
cause a potential risk of damaging the upper surface of the cylin-
der head.
NOTICE
• The use of a magnet bar facilitates the removal of the valve
spring retainer.
• Tap the spring seat (upper) with a plastic hammer before
work will unstick the seat, facilitating the removal.
• Replace the spring seat (lower) after removing the valve stem
seal.
CROSSHEAD
SHTS021270900074
SST
SPRING SEAT
(UPPER)
VALVE SPRING
RETAINER
SHTS021270900075