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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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