Base
Engine Components
DODGE
Turbo Diesel
Alternative Repair Procedures
Page9K-11
Crankshaft Repair Tools
Crankshaft Regrinding Lathe
Note:
The repairs can be
performed
with
standard
automotive
engine
tooling
at local
automotive
engine repair
shops.
Crankshaft Grinding - General
Crankshaft main and rod journals may be reground in increments of
0.25mm
[0.0098
inch] up to
four
times for a
total
of
1.00mm
[0.0394
inch]. The only exception is the main journal thrust
width
surface which must be reground
in two increments of
0.50mm
[0.0197
inch] and
1.00mm
[0.0394
Inch]. The thrust surface is located on the number
six
main bearing.
When
the thrust surface requires regrinding, the main journal must be reground to the same
undersize dimension.
Two procedures, a preferred and an optional,
will
be given for regrinding all crankshaft journals except when
the thrust
width
surface requires regrinding. Then the preferred procedure is the only accepted procedure.
Crankshaft
Main
Journal Regrind Specifications
Standard
main journal size:
83.000
±
.013mm
[3.2677
±
.0005
inch]
Worn
Limit:
82.962mm
[3.2662
inch]
Undersizes:
All
Main
Journals
Available
Undersize
0.25mm
[.00% inch]
0.50mm
[.0197
inch]
0.75mm
[.0295
inch]
1.00mm
[.0394
inch]
82.750
±
.013mm
[3.2579
±
.0005
inch]
82.500
+
.013mm
[3.2480
±
.0005
inch]
82.250
±
.013mm
[3.2381
±
.0005
inch]
82.000
±
.013mm
[3.2283
±
.0005
inch]
Regrind To
All main journals are to be parallel to the
front
and rear mains
within
0.03mm
[0.001
inch]
Out of
roundness:
0.005mm
[0.0002
inch] maximum
Taper:
0.005mm
[0.0002
inch] maximum
All main journals are to be ground in the opposite direction of engine
rotation
(clockwise as viewed
from
the
front
of
crankshaft). Polish the journals in the same direction as engine rotation.
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