2006 DODGE RAM SRT-10 Crankshaft

6.Step 1 – 27 Nꞏm ( 20 ft. lbs.) torque.
7.
Step 2 – Turn main cap bolts an additional 90°.
8. Install the crossbolts with new washer/gasket.
Starting with crossbolt A torque each crossbolt to
28 Nꞏm ( 21 ft. lbs.)torque.
9. Repeat crossbolt torque procedure.
10. Measure crankshaft end play (Refer to 9 -
ENGINE/ENGINE BLOCK/CRANKSHAFT MAIN
BEARINGS - STANDARD PROCEDURE).
11. Position the connecting rods onto the crankshaft and install the rod bearing caps (Refer to 9 - ENGINE/ENGINE
BLOCK/PISTON & CONNECTING ROD - INSTALLATION).

14. Install the timing chain cover (1) (Refer to 9 - ENGINE/VALVE TIMING/TIMING BELT / CHAIN COVER(S) -
INSTALLATION).
15. Install the rear main seal and retainer (Refer to 9
- ENGINE/ENGINE BLOCK/CRANKSHAFT REAR
OIL SEAL RETAINE - INSTALLATION).
16. Install the windage tray/oil pan gasket.
17. Install the oil pick up tube.
18. Install the oil pan (Refer to 9 - ENGINE/LUBRICA-
TION/OIL PAN - INSTALLATION).
19. Install the vibration damper (Refer to 9 - ENGINE/
ENGINE BLOCK/VIBRATION DAMPER - INSTAL-
LATION).
20. Install the engine (Refer to 9 - ENGINE -
INSTALLATION).

BEARINGS - CRANKSHAFT MAIN
STANDARD PROCEDURE - CRANKSHAFT MAIN BEARING - FITTING
MAIN BEARING JOURNAL DIAMETER (CRANKSHAFT REMOVED)
Crankshaft removed from the cylinder block.
Clean the oil off the main bearing journal.
Determine the maximum diameter of the journal with a micrometer. Measure at two locations 90° apart at each end
of the journal.
The maximum allowable taper is 0.008mm (0.0004 inch.) and maximum out of round is 0.005mm (0.0002 inch).
Compare the measured diameter with the journal diameter specification (Main Bearing Fitting Chart). Select inserts
required to obtain the specified bearing-to-journal clearance.
CRANKSHAFT MAIN BEARING SELECTION
The main bearings are “select fit” to achieve proper oil clearances. For main bearing selection, the crankshaft coun-
terweight has grade identification marks stamped into it. These marks areread from left to right, corresponding with
journalnumber1,2,3,4and5.
NOTE: Service main bearings are coded. These codes identify what size (grade) the bearing is.
MAIN BEARING SELECTION CHART - 5.7L
GRADE SIZE mm (in.) FOR USE WITH
MARKING JOURNAL SIZE
A0.008 mm U/S 64.988–64.995 mm
(0.0004 in.) U/S (2.5585– 2.5588in.)
BNOMINAL 64.996–65.004 mm
(2.5588–2.5592 in.)
C0.008 mm O/S 65.005–65.012 mm
(0.0004 in.) O/S (2.5592–2.5595 in.)
INSPECTION
Wipe the inserts clean and inspect for abnormal wear
patterns and for metal or other foreign material imbed-
ded in the lining. Normal main bearing insert wear pat-
terns are illustrated.
NOTE: If any of the crankshaft journals are scored,
the crankshaft must be repaired or replaced.
Inspect the back of the inserts for fractures, scrapings
or irregular wear patterns.
Inspect the upper insert locking tabs for damage.
Replace all damaged or worn bearing inserts.

SEAL - CRANKSHAFT OIL - FRONT
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 7 - COOLING -
STANDARD PROCEDURE).
4. Remove upper radiator hose.
5. Remove radiator shroud attaching fasteners.
6. Remove radiator cooling fan and shroud (Refer to
7 - COOLING/ENGINE/RADIATOR FAN -
REMOVAL).
7. Remove crankshaft damper bolt.
8. Remove damper using Special Tools 8513A Insert
(2) and 1023 Three Jaw Puller (1) (Refer to 9 -
ENGINE/ENGINE BLOCK/VIBRATION DAMPER -
REMOVAL).
9. Using Special Tool 9071 (1), remove crankshaft
front seal (2).

INSTALLATION
CAUTION: The front crankshaft seal must be installed dry. Do not apply lubricant to sealing lip or to outer
edge.
1. Using Special Tool 9072 and 8512A, install crankshaft front seal.
CAUTION: To prevent severe damage to the Crankshaft or Damper, thoroughlyclean the damper bore and
the crankshaft nose before installing Damper.
2. Install vibration damper (Refer to 9 - ENGINE/ENGINE BLOCK/VIBRATION DAMPER - INSTALLATION).
3. Install radiator cooling fan and shroud (Refer to 7 - COOLING/ENGINE/RADIATOR FAN - INSTALLATION).
4. Install upper radiator hose.
5. Install accessory drive belt refer (Refer to 7 - COOLING/ACCESSORY DRIVE/DRIVE BELTS - INSTALLATION).
6. Refill cooling system (Refer to 7 - COOLING - STANDARD PROCEDURE).
7. Connect negative cable to battery.

SEAL - CRANKSHAFT OIL - REAR
DIAGNOSIS AND TESTING - REAR SEAL AREA LEAKS
Since it is sometimes difficult to determine the source of an oil leak in therear seal area of the engine, a more
involved inspection is necessary. The following steps should be followedto help pinpoint the source of the leak.
If the leakage occurs at the crankshaft rear oil seal area:
1. Disconnect the battery.
2. Raise the vehicle.
3. Remove torque converter or clutch housing cover and inspect rear of block for evidence of oil. Use a black light
to check for the oil leak:
a. Circular spray pattern generally indicates seal leakage or crankshaftdamage.
b. Where leakage tends to run straight down, possible causes are a porous block, camshaft bore cup plugs, oil
galley pipe plugs, oil filter runoff, and main bearing cap to cylinder block mating surfaces. See Engine, for
proper repair procedures of these items.
4. If no leaks are detected, pressurized the crankcase as outlined in the section, Inspection (Engine oil Leaks in
general)
CAUTION: Do not exceed 20.6 kPa (3 psi).
5. If the leak is not detected, very slowly turn the crankshaft and watch forleakage. If a leak is detected between
the crankshaft and seal while slowly turning the crankshaft, it is possible the crankshaft seal surface is damaged.
The seal area on the crankshaft could have minor nicks or scratches that canbe polished out with emery cloth.
CAUTION: Use extreme caution when crankshaft polishing is necessary to remove minor nicks or
scratches. The crankshaft seal flange is specially machined to complement the function of the rear oil seal.
6. For bubbles that remain steady with shaft rotation, no further inspection can be done until disassembled. (Refer
to 9 - ENGINE - DIAGNOSIS AND TESTING), under the Oil Leak row, for components inspections on possible
causes and corrections.
7. After the oil leak root cause and appropriate corrective action have been identified, (Refer to 9 - ENGINE/EN-
GINE BLOCK/CRANKSHAFT OIL SEAL - REAR - REMOVAL).
REMOVAL
NOTE: This procedure can be performed in vehi-
cle.
1. If being performed in vehicle, remove the transmis-
sion.
2. Remove the flexplate (Refer to 9 - ENGINE/EN-
GINE BLOCK/FLEX PLATE - REMOVAL).
NOTE: The crankshaft oil seal CAN NOT be reused
after removal.
NOTE: The crankshaft rear oil seal remover Spe-
cial Tool 8506 must be installed deeply into the
seal. Continue to tighten the removal tool into the
seal until the tool can not be turned farther. Fail-
ure to install tool correctly the first time will cause
tool to pull free of seal without removing seal from
engine.

3. Using Special Tool 8506 (1), remove the crankshaft rear oil seal (2).
INSTALLATION
CAUTION: The rear seal must be installed dry for
proper operation. Do not lubricate the seal lip or
outer edge.
1. Position the plastic seal guide (2) onto the crank-
shaft rear face. Then position the crankshaft rear
oil seal (3) onto the guide.
2. Using Special Tools 8349 Crankshaft Rear Oil Seal
Installer (1) and C-4171 Driver Handle, with a ham-
mer, tap the seal (3) into place. Continue to tap on
the driver handle until the seal installer seats
against the cylinder block crankshaft bore.
3. Install the flexplate. (Refer to 9 - ENGINE/ENGINE
BLOCK/FLEX PLATE - INSTALLATION).
4. Install the transmission.

PISTON & CONNECTING ROD
DESCRIPTION
CAUTION: Do not use a metal stamp to mark connecting rods as damage may result, instead use ink or a
scratch awl.
The pistons are made of a high strength aluminum alloy. Piston skirts are coated with a solid lubricant (Molykote) to
reduce friction and provide scuff resistance. The piston top ring groove and land is anodized. The connecting rods
are made of forged powdered metal, with a “fractured cap” design. A pressedfit piston pin is used to attach the
piston and connecting rod.
STANDARD PROCEDURE - PISTON FITTING
1. To correctly select the proper size piston, a cylinder bore gauge, capable of reading in 0.003 mm ( .0001 in.)
INCREMENTS is required. If a bore gauge is not available, do not use an insidemicrometer.
2. Measure the inside diameter of the cylinder bore at a point 38.0 mm (1.5 inches) below top of bore. Start per-
pendicular (across or at 90 degrees) to the axis of the crankshaft at point Aand then take an additional bore
reading 90 degrees to that at point B.
3. The coated pistons will be serviced with the piston pin and connecting rod pre-assembled. The piston-rod assem-
bly is specific for the left cylinder bank ( odd numbered) and the right cylinder bank ( even numbered) and must
not be interchanged.