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 aim 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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