Dodge 2000 DURANGO - Page 641

DESCRIPTION SPECIFICATION
PISTON PIN
Clearance in Piston 0.00635 – 0.01905 mm
(0.00025 – 0.00075 in.)
Diameter 24.996 – 25.001 mm
(0.9841 – 0.9843 in.)
End Play NONE
Length 75.946 – 76.454 mm
(2.990 – 3.010 in.)
PISTON RINGS
Ring Gap
Compression Rings 0.254 – 0.508 mm
(0.010 – 0.020 in.)
Oil Control (Steel Rails) 0.254 – 1.270 mm
(0.010 – 0.050 in.)
Ring Side Clearance
Compression Rings 0.038 – 0.076 mm
(0.0015 – 0.0030 in.)
Oil Ring (Steel Rails) 0.06 – 0.21 mm
(0.002 – 0.008 in.)
Ring Width
Compression rings 1.971 – 1.989 mm
(0.0776 – 0.0783 in.)
Oil Ring (Steel Rails) –
Max.
3.848 – 3.975 mm
(0.1515 – 0.1565 in.)
VALVE TIMING
Exhaust Valve
Closes (ATDC) 21°
Opens (BBDC) 60°
Duration 264°
Intake Valve
Closes (ATDC) 61°
Opens (BBDC) 10°
Duration 250°
Valve Overlap 31°
OVERSIZE AND UNDERSIZE ENGINE
COMPONENT MARKINGS CHART
U/S-O/S Item Identification Identification
Location
U/S Rod/ R or M R-1-4
ect.
Milled flat on
No.8
.0254
mm
Main (indicating
No. 1
crankshaft
(0.001
in.)
Journal and 4
connecting
counterweight.
rod journal)
and/or
M-2-3 ect.
(indicating
No. 2
and 3 main
bearing
journal)
O/S Hydraulic l Diamond-
shaped
.2032
mm
Tappets stamp top pad
-
(.008 in.) front of engine
and flat
ground
on outside
surface of
each
O/S tappet
bore.
O/S Valve X Milled pad
.127 mm Stems adjacent to
two
(.005 in.) tapped holes
(3/8 in.) on
each
end of
cylinder
head.
DN 5.2L ENGINE 9 - 131
SPECIFICATIONS (Continued)