Dodge 2001 Ram 1500 Owner's Manual page 1333

9 - 186 ENGINE 8.0L
ENGINE 8.0L (Continued)
DESCRIPTION
Weight
Piston to Bore Clearance
Service Limit
PISTON PINS
Clearance in Piston
Diameter
End Play
Length
PISTON RINGS
Ring Gap
Compression Rings
Oil Control (Steel Rails)
Ring Side Clearance
Compression Rings
Oil Ring (Steel Rails)
VALVE TIMING
Exhaust Valve
Closes (ATDC)
Opens (BBDC)
Duration
Intake Valve
Closes (ATDC)
Opens (BBDC)
Duration
Valve Overlap
SPECIFICATION
463 – 473 grams (16.33
– 16.68 oz.)
0.013 – 0.038 mm
(0.0005 – 0.0015 in.)
0.0762 mm (0.003 in.)
0.010 – 0.020 mm
(0.0004 – 0.0008 in.)
24.996 – 25.001 mm
(0.9841 – 0.9843 in.)
NONE
67.8 – 68.3 mm
(2.67 – 2.69 in.)
0.254 – 0.508 mm
(0.010 – 0.020 in.)
0.381 – 1.397 mm
(0.015 – 0.055 in.)
0.074 – 0.097 mm
(0.0029 – 0.0038 in.)
2.591 – 2.743 mm
(0.102 – 0.108 in.)
25°
60°
265°
61°
6°
246°
31°
CRANKSHAFT JOURNAL MARKING
LOCATION
MEASURE- ITEM
MENT
0.0254 mm Crankshaft
(0.001 in.) Journals
U/S
0.508 mm Cylinder
(0.020 in.) Bores
O/S
0.2032 mm Hydraulic
(0.008 in.) Tappets
O/S
0.127 mm Valve
(0.005 in.) Stems
BR/BE
IDENTIFI- LOCATION
CATION OF
IDENTIFI-
CATION
R or M Milled flat
M-2-3 ect. on No. 8
(indicating crankshaft
No. 2 and counter-
3 main weight.
bearing
journal)
and/or
R-1-4 ect.
(indicating
No. 1 and
4
connecting
rod
journal)
A Following
engine
serial
number.
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
on each
end of
cylinder
head.