2006 DODGE RAM SRT-10 Service Repair Manual

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Page 1705 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual ROD - PISTON & CONNECTING
DESCRIPTION
CAUTION: Do not use a metal stamp to mark connecting rods as damage may result, instead use ink or a
scratch awl.
Thepistonsaremadeofahighstrengthaluminumalloy.Th

Page 1706 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual REMOVAL
1. Disconnect negative cable from battery.
2. Remove the following components:
Oil pan and gasket/windage tray (Refer to 9 - ENGINE/LUBRICATION/OIL PAN -REMOVAL).
Cylinder head covers (Refer t

REMOVAL
1. Disconnect negative cable from battery.
2. Remove the following components:
Oil pan and gasket/windage tray (Refer to 9 - ENGINE/LUBRICATION/OIL PAN -REMOVAL).
Cylinder head covers (Refer to 9 - ENGINE/CYLINDER HEAD/CYLINDER HEAD COVER(S) - REMOVAL) and
(Refer to 9 - ENGINE/CYLINDER HEAD/CYLINDER HEAD COVER(S) - REMOVAL).
Timing chain cover (Refer to 9 - ENGINE/VALVE TIMING/TIMING BELT / CHAIN COVER(S) - REMOVAL).
Cylinder head(s) (Refer to 9 - ENGINE/CYLINDER HEAD - REMOVAL) and (Refer to 9 - ENGINE/CYLINDER
HEAD - REMOVAL).
3. If necessary, remove top ridge of cylinder bores with a reliable ridge reamer before removing pistons from cyl-
inder block.Be sure to keep tops of pistons covered during this operation.Pistons and connecting rods
must be removed from top of cylinder block. When removing piston and connecting rod assemblies from the
engine, rotate crankshaft so the each connecting rod is centered in cylinder bore.
CAUTION: DO NOT use a number stamp or a punch to mark connecting rods or caps,as damage to con-
necting rods could occur
NOTE: Connecting rods and bearing caps are not interchangeable and shouldbe marked before removing
to ensure correct reassembly.
4. Mark connecting rod and bearing cap positions
using a permanent ink marker or scribe tool.
CAUTION: Care must be taken not to damage the
fractured rod and cap joint face surfaces, as
engine damage may occur.
5. Remove connecting rod cap. Install Special Tool 8507 Connecting Rod Guides into the connecting rod being
removed. Remove piston from cylinder bore. Repeat this procedure for eachpiston being removed.
CAUTION: Care must be taken not to nick crankshaft journals, as engine damage may occur
6. Immediately after piston and connecting rod removal, install bearing cap on the mating connecting rod to prevent
damage to the fractured cap and rod surfaces.
7. Carefully remove piston rings from piston(s), starting from the top ring down.
CLEANING
CAUTION: DO NOT use a wire wheel or other abrasive cleaning devise to clean the pistons or connecting
rods. The pistons have a Moly coating, this coating must not be damaged.
1. Using a suitable cleaning solvent clean the pistons in warm water and towel dry.
2. Use a wood or plastic scraper to clean the ring land grooves.
CAUTION: DO NOT remove the piston pin from the piston and connecting rod assembly.

Page 1707 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual INSPECTION
Check the connecting rod journal for excessive wear, taper and scoring (Refer to 9 - ENGINE/ENGINE BLOCK/
CONNECTING ROD BEARINGS - STANDARD PROCEDURE).
Check the connecting rod for signs o

Page 1708 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual 5. The pistons are marked on the piston pin bore sur-
face with an raised “F” indicating installation posi-
tion (1). This mark must be pointing toward the
front of engine on both cylinder banks.

Page 1709 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual RINGS - PISTON
STANDARD PROCEDURE - PISTON RING FITTING
Before reinstalling used rings or installing new rings,
the ring clearances must be checked.
1. Wipe the cylinder bore clean.
2. Insert the ring

Page 1710 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual Ring Position Groove Clearance Maximum Clearance
(Steel Rails) (.0007-.0090 in.) (0.010 in.)
Ring Position Ring Gap Wear Limit
Upper Ring 0.20-0.36 mm 0.43 mm
(0.0079-0.0142 in.) (0.0017 in.)
Intermed

Page 1711 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual 12. Position piston ring end gaps as shown. It is
important that expander ring gap (5) is at least
45° from the side rail gaps, but not on the piston
pin center or on the thrust direction.

Page 1712 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual DAMPER - CRANKSHAFT
REMOVAL
1. Disconnect negative cable from battery.
2. Remove accessory drive belt (Refer to 7 - COOL-
ING/ACCESSORY DRIVE/DRIVE BELTS -
REMOVAL).
3. Drain cooling system (Refer to

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