Dodge 2001 Ram 1500 Owner's Manual page 1222

BR/BE
ENGINE 5.2L (Continued)
DESCRIPTION
PISTON RINGS
Ring Gap
Compression Rings
Oil Control (Steel Rails)
Ring Side Clearance
Compression Rings
Oil Ring (Steel Rails)
Ring Width
Compression rings
Oil Ring (Steel Rails) –
Max.
VALVE TIMING
Exhaust Valve
Closes (ATDC)
Opens (BBDC)
Duration
Intake Valve
Closes (ATDC)
Opens (BBDC)
Duration
Valve Overlap
SPECIFICATION
0.254 – 0.508 mm
(0.010 – 0.020 in.)
0.254 – 1.270 mm
(0.010 – 0.050 in.)
0.038 – 0.076 mm
(0.0015 – 0.0030 in.)
0.06 – 0.21 mm
(0.002 – 0.008 in.)
1.971 – 1.989 mm
(0.0776 – 0.0783 in.)
3.848 – 3.975 mm
(0.1515 – 0.1565 in.)
21°
60°
264°
61°
10°
250°
31°
OVERSIZE AND UNDERSIZE ENGINE
COMPONENT MARKINGS CHART
U/S-O/S Item Identification
U/S Rod/ R or M R-1-4
.0254 Main (indicating No.
mm
(0.001 Journal
in.)
(indicating No.
O/S Hydraulic
.2032 Tappets
mm
(.008 in.)
O/S Valve
.127 mm Stems
(.005 in.)
ENGINE 5.2L
Identification
Location
Milled flat on
ect. No.8
crankshaft
1
and 4 counterweight.
connecting
rod journal)
and/or
M-2-3 ect.
2
and 3 main
bearing
journal)
Diamond-
shaped
stamp top pad
-
front of engine
and flat
ground
on outside
surface of
each
O/S tappet
bore.
X Milled pad
adjacent to
two
tapped holes
(3/8 in.) on
each
end of
cylinder
head.
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