Dodge 2000 DURANGO - Page 667

CONNECTING ROD BEARINGS—FITTING
Fit all rods on a bank until completed. DO NOT
alternate from one bank to another, because connect-
ing rods and pistons are not interchangeable from
one bank to another.
The bearing caps are not interchangeable and
should be marked at removal to ensure correct
assembly.
Each bearing cap has a small V-groove across the
parting face. When installing the lower bearing shell,
make certain that the V-groove in the shell is in line
with the V-groove in the cap. This provides lubrica-
tion of the cylinder wall in the opposite bank.
The bearing shells must be installed so that the
tangs are in the machined grooves in the rods and
caps.
Limits of taper or out-of-round on any crankshaft
journals should be held to 0.025 mm (0.001 inch).
Bearings are available in 0.025 mm (0.001 inch),
0.051 mm (0.002 inch), 0.076 mm (0.003 inch), 0.254
mm (0.010 inch) and 0.305 mm (0.012 inch) under-
size. Install the bearings in pairs. DO NOT use a
new bearing half with an old bearing half. DO
NOT file the rods or bearing caps.
CRANKSHAFT MAIN BEARINGS—FITTING
Bearing caps are not interchangeable and should
be marked at removal to ensure correct assembly.
Upper and lower bearing halves are NOT inter-
changeable. Lower main bearing halves of No.2 and 4
are interchangeable.
PISTON MEASUREMENT CHART
PISTON A DIA = PISTON BORE
SIZE DIAMETER DIAMETER
MIN. MAX. MIN. MAX.
mm
(in.)
mm
(in.)
mm
(in.)
mm (in.)
A ————
B 101.580 101.592 101.605 101.618
(3.9992) (3.9997) (4.0002) (4.0007)
C 101.592 101.605 101.618 101.630
(3.9997) (4.0002) (4.0007) (4.0012)
D 101.605 101.618 101.630 101.643
(4.0002) (4.0007) (4.0012) (4.0017)
E ————
DESCRIPTION SPECIFICATION
PISTON PIN BORE 25.007 - 25.015 mm
(.9845 -.9848 in.)
RING GROOVE
HEIGHT
OIL RAIL 4.033 - 4.058 mm
(.1588 -.1598 in.)
COMPRESSION
RAIL
1.529 - 1.554 mm
(.0602 -.0612 in.)
TOTAL FINISHED 470.8 6 2 grams
WEIGHT (16.607 6.0706 ounces)
Fig. 27 Second Compression Ring Identification
(Typical)
1 – SECOND COMPRESSION RING (BLACK CAST IRON)
2 – CHAMFER
3 – TWO DOTS
Fig. 28 Top Compression Ring Identification
(Typical)
1 – TOP COMPRESSION RING (GRAY IN COLOR)
2 – CHAMFER
3 – ONE DOT
DN 5.9L ENGINE 9 - 157
SERVICE PROCEDURES (Continued)