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Base Engine Components
DODGE Turbo Diesel
Alternative Repair Procedures
Page9K-5
Cam Bore(s)
The front cam bushing bore can be rebored to 57.740 ± 0.018mm [2.273 ± 0.0007 inch] oversize. Do not bore the
intermediate or rear cam bore to the front cam bore oversize dimensions. Intermediate and rear cam bores may
be rebored to 57.240 ± 0.018mm [2.253 ± 0.0007 inch] oversize. A surface finish of 2.3 micrometers [92 microinch]
must be maintained. Not more than 20 percent of area of any one bore may be 3.2 micrometers [126 microinch].
Note: Camshaft bores can be repaired individually. It Is not necessary to repair undamaged cam bores in order to
repair individually damaged cam bores.
Install all cam bushings flush or below the front cam bore
surface. The oil hole must align to allow a 3.2 mm [.125 inch]
rod to pass through freely.
Caution: The standard front bushing cannot be used to
repair intermediate or rear bores. Consult the parts manual
for correct oversize a i m bushing part numbers.
Cylinder Bore(s) Repair - General
Cylinder bore(s) can be repaired by two methods.
Method 1.
- Over boring ami using oversize pistons and rings.
Method 2.
- Boring ami installing a repair sleeve to return the bore to standard dimensions.
- Oversize pistons ami rings are available in two sizes: 0.50mm [0.0197 inch] and 1.00mm [0.0393 inch].
- If more than 1.00mm [0.0393 Inch] overbore is needed, a repair sleeve Is required. It is permissible to install
sleeves into individual cylinders as required. Repair sleeves can be replaced by using a boring bar to bore out
the old sleeve. Do not cut the cylinder bore beyond the oversize limit. It is also permissible to overbore
individual cylinders as required. Any combination of standard, 0.50mm overbore, or 1.00mm overbore may be
used in the same engine.
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Troubleshooting
