Camshaft Inspection - Doosan V158TI Operation & Maintenance Manual

c) Tappet and push rod
●
By means of outside micrometer,
measure the outer diameter of tappet
and replace the severe ones.
Items
Tappet
clearance
●
By inspecting the tappet surface that
contacts with the camshaft's cam for
any crack and scratch etc., and if the
degree is small, correct them with an
oil stone or the grinding paper but if
severe replace them.
●
Place the push rod on the surface
plate and rolling it, Inspect the curv-
ing degree with a clearance gauge
and if abnormal, replace it.
<Run-out>
Limit
d) Rocker arm reassembling
Inspect the oil passages of rocker arm and rocker arm bracket for any clogs and reassemble them
in the reverse order of disassembling after thorough cleaning.
6.2.5. Camshaft
(1) Axial end play
●
Push the camshaft toward the pulley
side.
●
Place a dial gauge onto the camshaft
gear.
Standard Limit
0.035
0.15 mm
~ 0.077 mm
0.3 mm or less
(1) Unevenness
(1) Unevenness
- 83 - Disassembly and assembly of major components
(2) Crank (3) Normal
(2) Crank (3) Normal
(4) Abnormal
(4) Abnormal EA0M4070
EA0M4070
Feeler gauge
EA0M4073
EPM2016S