Alternative Repair Procedures
Page9K-14
Base
Engine Components
DODGETurbo Diesei
Crankshaft Rod Journal Regrind Specifications
Standard rod journal
size:
69.000
±
.013mm
[2.7165
±
.0005
inch]
Worn
limit:
68.962mm
[2.7150
inch]
Available Undersize Regrind To:
0.25mm
[.0098
inch]
68.750
±
0.013mm
[2.7067
±
.0005
inch]
0.50mm
[.0197
inch]
68.500
±
0.013mm
[2.6969
±
.0005
inch]
0.75mm
[.0295
inch]
68.250
+
0.013mm
[2.6870
±
.0005
inch]
1.00mm
[.0394
inch]
68.000
±
0.013mm
[2.6772
+
.0005
inch]
Ail rod journals to be parallel to
front
and rear main journals
within
0.03mm
[0.001
inch]
Out of roundness
0.005mm
[0.0002
inch] maximum
Taper
0.005mm
[0.0002
inch] maximum
Journals
are to be ground in the opposite direction of
rotation
(clockwise
as
viewed
from
the
front
of the crankshaft).
Journals
are to be polished in the same direction as engine rotation.
Crankshaft Rod Journal Radius - Regrind
Preferred Procedure
Smoothly blend a 4.00 ±
0.20mm
[.1575
±
.0008
inch] radius to
the reground diameters and side
faces.
Surface finish:
A = 0.8 micrometer [32 microinch] for a
minimum
of 45 degrees
into
the
fillet
beyond the journal surface
B
= 1.6 micrometers [64 microinch] for the remainder of the
fillet
C
= Journal surface 0.4 micrometer [16 microinch]
D = Original radius
E
= New undercut radius
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