STANDARD VALUE (J05E)
2–16
VALVE SYSTEM
EN01F02127010701006005
STANDARD VALUE, LIMIT AND ACTION
Unit: mm {in.}
Inspection item
Standard value
Permissible limit
Action
Valve sink
Intake
0.55-0.85
{0.0217-0.0335}
1.1 {0.0433}
Replace
Exhaust
1.15-1.45
{0.0452-0.0571}
1.7 {0.0669}
Replace
Valve seat
Intake
30
30
-30
35'
Correction
Exhaust
45
45
-45
30'
Correction
Valve face
Intake
30
29
30'-30
Correction
Exhaust
45
44
30'-45
Correction
Valve spring seat thickness
A
3.2 {0.1260}
If the wear of
A or B added to
the wear of C
exceeds 1 mm
{0.0393 in.}.
Replace
B
5.5 {0.2165}
C
1.0 {0.0393}
Squareness of valve
spring
Inner
–
2.0 {0.0787}
Replace
Outer
–
2.0 {0.0787}
Replace
Valve spring
[Referential val-
ues in brackets
( )]
Inner
Set length
44.8 {1.764}
–
Replace
Set load
128.5 N
{13.1 kgf}
118.2 N
{12 kgf}
Replace
Free length
(64.6 {2.543})
61.6 {2.425}
Replace
Outer
Set length
46.8 {1.843}
–
Replace
Set load
313.8 N
{32 kgf}
288.7 N
{29.4 kgf}
Replace
Free length
(75.7 {2.980})
72.7 {2.862}
Replace
Valve stem outer diameter
Intake
7 {0.276}
–
Exhaust
7 {0.276}
–
Valve guide inner diameter
Intake
7 {0.276}
–
Exhaust
7 {0.276}
–
Oil clearance of valve
stem and valve guide
Intake
0.023-0.058
{0.0009-0.0023}
–
Replace
Exhaust
0.050-0.083
{0.0020-0.0033}
–
Replace
Dimension of tapping in the valve stem seal
22.5-23.0
{0.886-0.906}
–
Adjustment
UPPER
SEAT
LOWER SEAT
C
A B
