Doosan DV11 - Valve Clearance Adjust Procedure; Amount of Anti-Freeze in Winter

DV11
Operation and Maintenance
35
Technical Information
Printed in Mar. 2005 PS-MMA0608-E1A
󰼿Rocker arm
Caliper adjusting bolt
Caliper
Intake valve
spring
Intake valve
Valve seat
Valve adjusting bolt
Valve adjusting nut
Push rod
Valve adjusting
bolt
Rocker arm
Push rod
Caliper adjusting nut
Caliper
Exhaust valve spring
Exhaust valve
Valve seat
A
C
B
Intake valve adjusting󰼿
Exhaust valve, engine brake adjusting󰼿
Engine brake
󰼿Engine brake Adjusting bolt
z Amount of Anti-freeze in winter
Ambient
Temperature (°C)
Cooling water (%) Anti-freeze (%)
Over –10
-10
-15
-20
-25
-30
-40
85
80
73
67
60
56
50
15
20
27
33
40
44
50
2.3.24. Valve clearance adjust procedure
z After letting the #1 cylinder's piston come at the compression top dead center by
turning the crankshaft, adjust the valve clearances.
z Loosen the lock nuts of rocker arm adjusting screws and push the feeler gauge
of specified value between a rocker arm and a valve stem and adjust the
clearance with adjusting screw respectively and then tighten with the lock nut.
z As for the valve clearance, adjust it when in cold, as follows.
Engine model Intake valve (A) Exhaust valve (B) Engine brake (C)
DV11
0.4 mm 0.5 mm 1.5 mm