Mitsubishi S3Q2-T - Page 167

ENGINE INSPECTION RECORD SHEET
No.3
Valve margin
Name
Valve seat angle Seat width Valve sinkage
Valve
1.04 to 1.32
[0.0409 to
0.0520]
0.7 to 0.9
[0.028 to
0.035]
1.6
[0.063]
1.3
[0.051]
Refacing
permissible up
to
1.2 [0.047]
1.7
[0.067]
Valve margin
Valve seat
30°
1.18
[0.0465]
0.8
[0.031]
Valve seat
angle
Seat width
Valve
sinkage
Nominal
value
Standard Limit
Measured by
Remarks
Model
Engine Serial No.
Approved by
Examined by
mm [in.]
Customer
①
Standards
S3Q2,S3Q2-T
Inspection
Item
Unit
Measurement of Valve Sinkage, Seat Width and Valve
Margin
Date
Measuring positions
Measured values
3
2
1
No.
②
②
Exhaust
Inlet
Inlet
Exhaust
Inlet
Exhaust
①
②
①









Valve margin
Valve sinkage
Valve seat
angle
Seat width