Doosan GL08K - Page 75

Maintenance - 69 -
 Push rod run-out
Use a feeler gauge to measure the
push rod run-out.
Roll the push rod along a smooth
flat surface as shown in the figure
d) Reassembling rocker arm
assembly
Reassembling can be done in the
reverse order of disassembling and
following things should be heeded.
 Check the oil supply hole of rocker arm shaft for any clog and clean thoroughly.
 Be careful not to occur any swap of position and reverse assembly.
3.2.6. Camshaft
1) Camshaft end play
 Push the thrust plate toward the cam
gear.
 With a feeler gauge, measure the
clearance between the thrust plate
and camshaft journal.
 If the end play is excessive, replace
the thrust plate.
2) Cam
 Cam lobe height
Use a micrometer to measure the cam
lobe height and journal diameter.
If the measured number is less than
the specified limit, the camshaft must
replaced.
EA0M4073
Feeler gauge
Limit 0.3 mm or less
EA0M4067
Feeler gauge
Standard Limit
0.28
~ 0.43 mm 0.5 mm
C
A
A
BB
D
III
III
ED2OM093
Standard Limit
Cam
lobe
height
(C)
Intake
49.05 ~
49.25 mm
48.86
mm
Exhaust
49.25 ~
49.45 mm
49.06
mm
Cam journal
diameter (A, B)
57.86 ~
57.88 mm
57.57
mm