Daewoo D45S-2 - Operator’s Station and Monitoring Systems

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150
30
A
I
Correction of Valve Seat Insert
1) Remove the carbon deposits from the valve seat
insert surface.
2) Remove the rough areas with a valve cutter (15˚,
30˚ or 75˚)
Do not cut the valve seat insert too much.
3) Spread compound on the surface of valve seat
insert.
4) Grind the valve and valve seat with the lapping
cup.
5) Insert valve into valve guide.
6) Check contact surface of valve whether good or
not.
7) Check the contact condition of valve seat insert.
EJM2045I
EJM2046S
B
EJM2047I
EJM2048S
Contacting Angle(B) Standard
Intake Valve Seat 45 ˚
Exhaust Valve Seat 45 ˚
60˚