Cylinder Block - Inspection; Straight Edge, Feeler Gauge - Dodge D250 1990 Service Manual

Out-of-Chassis Repairs
Page 91-12
Base Engine Components
DODGETurbo Diesel
Cylinder Block - Inspect
Inspect the cylinder bores for damage or excessive wear.
Measure the cylinder bores.
Diameter
mm in
102.000
102.116
MIN
MAX
4.0157
4.0203
Out-of-Roundness: .038mm [.0015 inch] Taper: 0.76mm
[.003 inch]
Note: Oversize pistons and rings are available for re-bored
cylinder blocks.
Straight Edge, Feeler Gauge
The distortion of the combustion deck face in not to exceed
0.010mm [.0004 inch] in any 50.00mm [2.0 inch] diameter.
Overall variation end to end or side to side .075mm [.003 inch].
If the surface exceeds the limit, refer to the Alternative Repair
section of this manual.
(^f^ Inspect the main bearing bores for damage or abnormal wear.
n \ 1 If required, install the main bearings and measure main bearing
y=s bore diameter with main bolts tightened to 176 N-m [130 ft-
lbs]. Record the measurement for later reference.
83.106
Standard Bearing
Diameter
MAX
3.2719
j^jjy
Inspect the camshaft bores for scoring or excessive wear.
Measure the camshaft bores. The limit for the No. 1 bore
applies to the ID of the bushing.
54.133
Diameter
MAX
2.1312
Note: If a bore exceeds the limit, refer to Alternative Repair
Section of this manual.