Valve System - Hino S5-LJ05E04A Workshop Manual

2–16

VALVE SYSTEM

STANDARD VALUE, LIMIT AND ACTION
Inspection item
Valve sink
Valve seat
Valve face
Valve spring seat thickness
UPPER
SEAT
A B
C
LOWER SEAT
Squareness of valve
spring
Inner
Valve spring
[Referential val-
ues in brackets
( )]
Outer
Valve stem outer diameter
Valve guide inner diameter
Oil clearance of valve
stem and valve guide
Dimension of tapping in the valve stem seal
STANDARD VALUE (J05E)
Standard value
0.55-0.85
Intake
{0.0217-0.0335}
1.15-1.45
Exhaust
{0.0452-0.0571}
Intake 30
Exhaust 45
Intake 30
Exhaust 45
A 3.2 {0.1260}
B 5.5 {0.2165}
C 1.0 {0.0393}
Inner
Outer
Set length 44.8 {1.764}
128.5 N
Set load
{13.1 kgf}
Free length (64.6 {2.543})
Set length 46.8 {1.843}
313.8 N
Set load
{32 kgf}
Free length (75.7 {2.980})
Intake 7 {0.276}
Exhaust 7 {0.276}
Intake 7 {0.276}
Exhaust 7 {0.276}
0.023-0.058
Intake
{0.0009-0.0023}
0.050-0.083
Exhaust
{0.0020-0.0033}
22.5-23.0
{0.886-0.906}
Permissible limit
1.1 {0.0433}
1.7 {0.0669}
30-3035'
45-4530'
2930'-30
4430'-45
If the wear of
A or B added to
the wear of C
exceeds 1 mm
{0.0393 in.}.
–
2.0 {0.0787}
–
2.0 {0.0787}
–
118.2 N
{12 kgf}
61.6 {2.425}
–
288.7 N
{29.4 kgf}
72.7 {2.862}
–
–
–
–
–
–
–
EN01F02127010701006005
Unit: mm {in.}
Action
Replace
Replace
Correction
Correction
Correction
Correction
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Adjustment