Dodge ram truck 3500 1996 Service Manual page 1053

5.2L ENGINE S - 8 3
should not exceed 0.246 mm (0.0097 inch) side
clearance.
(e) Pistons with insufficient or excessive side
clearance should be replaced.
SECOND
C O M P R E S S I O N R I N G
i s , (BLACK CAST [RON)
\
CHAMFER
TWO
DOTS
J9009-46
Fig. § Second
Compression Ring identification
(Typical)
TOP COMPRESSION RING
(GRAY IN COLOR)
CHAMFER
J9G0SM8
Fig. 10 Top Compression
Ring Identification
(Typical)
CHAMFER
\
TOP C O M P R E S S I O N
RING
CHAMFER
PISTON
S E C O N D
; O i / # R E S S i O N
RING
J9409-37
Fig, 11 Compression Ring Chamfer Location
(Typical)
FITTING CONNECTING ROD BEAIEiGS
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.
OIL RING
S P A C E R G A P
TOP
C O M P R E S S I O N
RING G A P
S E C O N D
C O M P R E S S I O N
RING G A P
" OIL RING RAIL
G A P (TOP)
OIL RING RAIL
G A P ( B O T T O M )
J 9 3 0 9 - 8 0
Pig. 11 PfGyCk
Ring Installation
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 0.805 mm (0.012 inch) under­
size. Install the bearings i n pairs. DO NOT use a
new bearing half w i t h an old bearing half* ID' C -
NOT file t h e rods or bearing caps.
CRANK: MAIN BEARINGS
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.
Upper and lower No.3 bearing halves are flanged
to carry the crankshaft thrust loads. They are NOT
interchangeable with any other bearing halves in the
engine (Fig. 13). Bearing shells are available in stan­
dard and the following undersizes: 0.25 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).
Never install an undersize bearing that will reduce
clearance below specifications.