Doosan V158TI Operation & Maintenance Manual page 183

Compo-
Item
nent
Connecting rod free
play
Clearance between
connecting rod bearing
and crank pin
Clearance between
small end bush and
piston pin
Main
Connecting rod bearing
drive Connecting
crush Height
compon rod
ents
Lateral clearance of big
end and small end
Allowable weight
difference among
connecting rods
Connecting rod bearing
cap bolt torque (kg·m)
Valve stem
O.D.
Valve
Valves Valve stem
system
and valve
guide
Valve head
thickness
Inspection item Specifications
Intake
Exhaust
Intake
Exhaust
Intake
Exhaust
Allow-
able
Limit
0.170 ~ 0.248 0.50
0.034 ~ 0.098 0.25
0.050 ~ 0.081 0.12
0.30 ~ 0.50
0.50
↓
18 g
18
ø
11.969 ~
ø
11.949
ø
11.980
ø
11.944 ~
ø
11.914
ø
11.955
0.02 ~ 0.049 0.10
0.045 ~ 0.074 0.15
4.6 ~ 5.0 4.1
4.33 ~ 4.83 3.83
- 177 -
Repair Remarks
Replace
connecting rod
Replace the
bearing
Install the
bearing and
loosen one bolt
for measurement
Tighten the
bearing cap and
loosen one stud
bolt for
measurement
Replace
connecting rod
Remove foreign
Apply oil to the materials from
bolt the connection
surface
Replace the guide
Replace valve
when replacing the
and valve guide
valve
Replace
Replace valve
whichever one
and valve guide
is more worn
Appendix