Mitsubishi Heavy Industries SL Series Service Manual page 191

Customer
Item to be
Valve seat angle and width
measured
Measuring location
Valve seat width
Measurement
Name
No. Valve
Inlet
1
Exhaust
Inlet
2
Exhaust
Inlet
3
Exhaust
Inlet
4
Exhaust
Engine Inspection Sheet
Engine model
Engine number
Valve seat angle
①
②
①
②
①
②
①
②
Remarks
Standard value
Valve seat
angle
Valve seat
width (0.0512 to 0.0709)
Valve seat width
Approved by
S
Date
Unit
mm (in.)
Standard
Limit
value
45°
1.30 to 1.80 2.50
(0.0985)
Confirmed by Measured by
No.3
L
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