Chrysler RAM TRUCK 2500 1994 Service Manual page 877

9 - 156 5.9L (DIESEL) ENGINE
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ORIGINAL RADIUS
N E W UNDERCUT RADIUS
JOURNAL SURFACE.
ORIGINAL RADIUS
N E W UNDERCUT RADIUS^
SURFACE FINISH
0.8 micrometer (32.0 microinch)
for a minimum of 45° into the
fillet beyond journal surface
1.6 micrometer (64.0 microinch)
for remainder of fillet
© 0.4 micrometer (16.0 microinch)
WIDTH O F REGRIND/UNDERCUT RADIUS
®
34.5 ±0.025 mm (1.358 ±0.001 in)
J9109-130
Fig. 9 Grind Crankshaft Main Journal—Alternative
Method
S T A N D A R D R O D J O U R N A L DIAMETER
69.000 + 0 . 0 1 3 mm
(2.7165 ± 0 . 0 0 0 5 inch)
W O R N R O D J O U R N A L DIAMETER LIMIT
68.962 (2.7150 inch)
U N D E R S I Z E S
R E G R I N D T O
0.25 mm
(0.0098 inch)
68.750 + 0 . 0 1 3 mm
(2.7067 ± 0 . 0 0 0 5 inch)
0.50 mm
(0.0197 inch)
68.500 ± 0 . 0 1 3 mm
(2.6969 ± 0.0005 inch)
0.75 mm
(0.0295 inch)
68.250 + 0 . 0 1 3 mm
(2.6870 ± 0.0005 inch)
1.00 mm
(0.0394 inch)
68.000 + 0.013 mm
(2.6772 ± 0 . 0 0 0 5 inch)
O U T - O F R O U N D & TAPER (MAX.)
0.005 mm (0.0002 inch)
ALL M A I N J O U R N A L S A R E T O BE PARALLEL
T O THE F R O N T A N D REAR M A I N S W I T H I N :
0.030 mm (0.001 inch)
J9109-126
Fig. 10 Crankshaft Rod Journal Dimensions
INSTALLATION
(1) The sealing surface on the crankshaft must be
free from all oil residue to prevent seal leaks.
JOURNAL SURFACE
SURFACE FINISH
®
0.8 micrometer (32.0 microinch)
for a minimum of 45° into the
^ fillet beyond journal surface
CD 1.6 micrometer (64.0 microinch)
for remainder of fillet
v£/ 0.4 micrometer (16.0 microinch)
J9109-131
Fig. 11 Crankshaft Rod Journal Grind—Preferred
Method
(2) If the gear cover was replaced, use the align­
ment tool from the seal kit to make sure the cover is
aligned with the crankshaft.
(3) Apply a bead of Loctite 277 to the outside di­
ameter of the seal.
(4) Install the pilot from the seal kit onto the
crankshaft.
(5) Install the seal onto the pilot and start it into
the gear housing cover seal bore.
(6) Remove the pilot.
(7) Use the alignment/installation tool and a plas­
tic hammer to install the seal to the correct depth.
(8) Install the vibration damper, but DO NOT
tighten the damper bolt until the belt is installed.
(9) Install the drive belt.
(10) Tighten the vibration damper bolts to 125 N-m
(92 ft. lbs.) torque. Use the engine barring tool to
keep the engine from rotating during torquing oper­
ation.
CRANKSHAFT REAR SEAL HOUSING AND
SEAL
REMOVAL
(1) Remove the rear seal housing and gasket (Fig.
13).