Dodge 2000 DURANGO - Page 698

DESCRIPTION SPECIFICATION
PISTONS
Clearance at Top of Skirt 0.013 – 0.038 mm
(0.0005 – 0.0015 in.)
Land Clearance (Diam.) 0.508 – 0.660 mm
(0.020 – 0.026 in.)
Piston Length 81.03 mm (3.19 in.)
Piston Ring Groove
Depth—
#1&2 4.761 – 4.912 mm
(0.187 – 0.193 in.)
Piston Ring Groove
Depth—
#3 3.996 – 4.177 mm
(0.157 – 0.164 in.)
Weight 582 – 586 grams
(20.53 – 20.67 oz.)
PISTON PINS
Clearance in Piston 0.006 – 0.019 mm
(0.00023 – 0.00074 in.)
Diameter 25.007 – 25.015 mm
(0.9845 – 0.9848 in.)
End Play NONE
Length 67.8 – 68.3 mm
(2.67 – 2.69 in.)
PISTON RINGS
Ring Gap
Compression Ring (Top) 0.30 – 0.55 mm
(0.012 – 0.022 in.)
Compression Ring (2nd) 0.55 – 0.80 mm
(0.022 – 0.031 in.)
Oil Control (Steel Rails) 0.381 – 1.397 mm
(0.015 – 0.055 in.)
Ring Side Clearance
Compression Rings 0.040 – 0.085 mm
(0.0016 – 0.0033 in.)
Oil Ring (Steel Rails) 0.05 – 0.21 mm
(0.002 – 0.008 in.)
Ring Width
Compression rings 1.530 – 1.555 mm
(0.060 – 0.061 in.)
DESCRIPTION SPECIFICATION
Oil Ring (Steel Rails) –
Max.
0.447 –0.473 mm
(0.018 – 0.019 in.)
VALVE TIMING
Exhaust Valve
Closes (ATDC) 33°
Opens (BBDC) 56°
Duration 269°
Intake Valve
Closes (ATDC) 62°
Opens (BBDC) 7°
Duration 249°
Valve Overlap 41°
OVERSIZE AND UNDERSIZE ENGINE
COMPONENT MARKINGS CHART
ITEM U/S
(O/S)
IDENTI-
FICATION
IDENTI-
FICATION
LOCATION
Crank-
shaft
Journals
0.0254
mm
(0.001
in.) U/S
R or M M-2-3
ect.
(indicating
No. 2 and 3
main bearing
journal)
and/or R-1-4
ect.
(indicating
No. 1 and 4
connecting
rod journal)
Milled flat on
No. 8
crankshaft
counterweight.
Hydraulic
Tappets
0.2032
mm
(0.008
in.)
(O/S)
l Diamond-
shaped stamp
top pad - front
of engine and
flat ground on
outside
surface of
each O/S
tappet bore.
Valve
Stems
0.127
mm
(0.005
in.)
(O/S)
X Milled pad
adjacent to
two tapped
holes (3/8 in.)
on each end
of cylinder
head.
9 - 188 5.9L ENGINE DN
SPECIFICATIONS (Continued)