DODGE RAM SRT-10 2006 Service Repair Manual

ELEMENT - AIR CLEANER
REMOVAL
Filter Element Only
1. Housing removal is not necessary for element (fil-
ter) replacement.
2. Loosen clamp and disconnect air duct at air
cleaner cover.
3. Pry over 4 spring clips (5) from housing cover (3)
(spring clips retain cover to housing).
4. Release housing cover (3) from locating tabs on
housing and remove cover.
5. Remove air cleaner element (filter) from housing.
6. Clean inside of housing before replacing element.
Housing Assembly
1. Loosen clamp and disconnect air duct at air
cleaner cover.
2. Lift entire housing (1) assembly from 4 locating
pins (2).

INSTALLATION
1. Install filter element into housing.
2. Position housing cover into housing locating tabs.
3. Pry up 4 spring clips and lock cover to housing.
4. Install air duct to air cleaner cover and tighten hose clamp to 3 Nꞏm (30 in.lbs.)torque.
5. If any other hose clamps were removed from air intake system, tighten themto3.4Nꞏm(30in.lbs.)torque.
6. If any bolts were removed from air resonator housing or air intake tubing, tighten them to 4.5 Nꞏm (40 in. lbs.)
torque.

CYLINDER HEAD
DESCRIPTION
DESCRIPTION - CYLINDER HEAD
The cylinder heads are made of an aluminum alloy. The cylinder head features two valves per cylinder with pressed
in powdered metal valve guides. The cylinder heads also provide enclosures for the timing chain drain, necessitating
unique left and right cylinder heads.
DESCRIPTION - VALVE GUIDES
The valve guides are made of powered metal and are pressed into the cylinderhead. The guides are not replace-
able or serviceable, and valve guide reaming is not recommended. If the guides are worn beyond acceptable limits,
replace the cylinder heads.
DIAGNOSIS AND TESTING
CYLINDER HEAD GASKET
A cylinder head gasket leak can be located between adjacent cylinders or between a cylinder and the adjacent
water jacket.
Possible indications of the cylinder head gasket leaking between adjacent cylinders are:
Loss of engine power
Engine misfiring
Poor fuel economy
Possible indications of the cylinder head gasket leaking between a cylinder and an adjacent water jacket are:
Engine overheating
Loss of coolant
Excessive steam (white smoke) emitting from exhaust
Coolant foaming
CYLINDER-TO-CYLINDER LEAKAGE TEST
To determine if an engine cylinder head gasket is leaking between adjacentcylinders, follow the procedures in Cyl-
inder Compression Pressure Test (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING). An engine cylinder head
gasket leaking between adjacent cylinders will result in approximately a50 - 70% reduction in compression pres-
sure.
CYLINDER-TO-WATER JACKET LEAKAGE TEST
WARNING: USE EXTREME CAUTION WHEN THE ENGINE IS OPERATING WITH COOLANT PRESSURE CAP
REMOVED.
VISUAL TEST METHOD
With the engine cool, remove the coolant pressure cap. Start the engine andallow it to warm up until thermostat
opens.
If a large combustion/compression pressure leak exists, bubbles will be visible in the coolant.
COOLING SYSTEM TESTER METHOD
WARNING: WITH COOLING SYSTEM TESTER IN PLACE, PRESSURE WILL BUILD UP FAST.EXCESSIVE
PRESSURE BUILT UP, BY CONTINUOUS ENGINE OPERATION, MUST BE RELEASED TO A SAFE PRESSURE
POINT. NEVER PERMIT PRESSURE TO EXCEED 138 kPa (20 psi).

Install Cooling System Tester Special Tool # 7700 or equivalent to pressure cap neck. Start the engine and observe
the tester’s pressure gauge. If gauge pulsates with every power stroke of acylinder a combustion pressure leak is
evident.
CHEMICAL TEST METHOD
Combustion leaks into the cooling system can also be checked by using Bloc-Chek Kit Special Tool # C-3685-A or
equivalent. Perform test following the procedures supplied with the toolkit.
REMOVAL
REMOVAL - LEFT CYLINDER HEAD
1. Disconnect the negative cable from the battery.
2. Raise the vehicle on a hoist.
3. Disconnect the exhaust pipe at the left side
exhaust manifold.
4. Drain the engine coolant. Refer to COOLING SYS-
TEM.
5. Lower the vehicle.
6. Remove the intake manifold (Refer to 9 - ENGINE/
MANIFOLDS/INTAKE MANIFOLD - REMOVAL).
7. Remove the master cylinder and booster assembly.
Refer to section 5 brakes.
8. Remove the cylinder head cover (Refer to 9 -
ENGINE/CYLINDER HEAD/CYLINDER HEAD COVER(S) - REMOVAL).
9. Remove the fan shroud and fan blade assembly
(Refer to 7 - COOLING/ENGINE/FAN DRIVE VIS-
COUS CLUTCH - REMOVAL).
10. Remove accessory drive belt (Refer to 7 - COOL-
ING/ACCESSORY DRIVE/DRIVE BELTS -
REMOVAL).
11. Remove the power steering pump and set aside.
12. Rotate the crankshaft until the damper timing
mark is aligned with TDC indicator mark.

13. Verify the V8 mark on the camshaft sprocket is at the 12 o’clock position. Rotate the crankshaft one turn if
necessary.
14. Remove the crankshaft damper (Refer to 9 - ENGINE/ENGINE BLOCK/VIBRATION DAMPER - REMOVAL).
15. Remove the timing chain cover (Refer to 9 - ENGINE/VALVE TIMING/TIMINGBELT / CHAIN COVER(S) -
REMOVAL).
16. Lock the secondary timing chains to the idler
sprocket using Special Tool 8515.

NOTE: Mark the secondary timing chain prior to removal to aid in installation.
17. Mark the secondary timing chain, one link on each side of the V8 mark on the camshaft drive gear.
18. Remove the left side secondary chain tensioner (Refer to 9 - ENGINE/VALVE TIMING/TIMING BELT/CHAIN
AND SPROCKETS - REMOVAL).
19. Remove the cylinder head access plug (2).
20. Remove the left side secondary chain guide
(Refer to 9 - ENGINE/VALVE TIMING/TIMING
BELT/CHAIN AND SPROCKETS - REMOVAL).
21. Remove the retaining bolt and the camshaft drive
gear.
CAUTION: Do not allow the engine to rotate.
Severe damage to the valve train can occur.
CAUTION: Do not overlook the four smaller bolts
at the front of the cylinder head. Do not attempt to
remove the cylinder head without removing these
four bolts.
NOTE: The cylinder head is attached to the cylin-
der block with fourteen bolts.
22. Remove the cylinder head retaining bolts using
the sequence provided.
23. Remove the cylinder head and gasket. Discard
the gasket.

CAUTION: Do not lay the cylinder head on its gasket sealing surface, due to the design of the cylinder head
gasket any distortion to the cylinder head sealing surface may prevent thegasket from properly sealing
resulting in leaks.
REMOVAL - RIGHT CYLINDER HEAD
1. Disconnect battery negitive cable.
2. Raise the vehicle on a hoist.
3. Disconnect the exhaust pipe at the right side
exhaust manifold.
4. Drain the engine coolant (Refer to 7 - COOLING -
STANDARD PROCEDURE).
5. Lower the vehicle.
6. Remove the intake manifold (Refer to 9 - ENGINE/
MANIFOLDS/INTAKE MANIFOLD - REMOVAL).
7. Remove the cylinder head cover (1) (Refer to 9 -
ENGINE/CYLINDER HEAD/CYLINDER HEAD
COVER(S) - REMOVAL).
8. Remove the fan shroud (Refer to 7 - COOLING/
ENGINE/FAN DRIVE VISCOUS CLUTCH -
REMOVAL).
9. Remove oil fill housing from cylinder head.
10. Remove accessory drive belt (Refer to 7 - COOL-
ING/ACCESSORY DRIVE/DRIVE BELTS -
REMOVAL).
11. Rotate the crankshaft until the damper timing
mark is aligned with TDC indicator mark (2).

12. Verify the V8 mark on the camshaft sprocket is at the 12 o’clock position(2). Rotate the crankshaft one turn if
necessary.
13. Remove the crankshaft damper (Refer to 9 - ENGINE/ENGINE BLOCK/VIBRATION DAMPER - REMOVAL).
14. Remove the timing chain cover (Refer to 9 - ENGINE/VALVE TIMING/TIMINGBELT / CHAIN COVER(S) -
REMOVAL).
15. Lock the secondary timing chains to the idler
sprocket using Special Tool 8515 (6).
NOTE: Mark the secondary timing chain prior to
removal to aid in installation.
16. Mark the secondary timing chain, one link on
each side of the V8 mark on the camshaft drive
gear.
17. Remove the right side secondary chain tensioner
(Refer to 9 - ENGINE/VALVE TIMING/TIMING
BELT/CHAIN AND SPROCKETS - REMOVAL).

18. Remove the cylinder head access plug (1).
19. Remove the right side secondary chain guide
(Refer to 9 - ENGINE/VALVE TIMING/TIMING
BELT/CHAIN AND SPROCKETS - REMOVAL).
20. Remove the retaining bolt and the camshaft drive
gear.
CAUTION: Do not allow the engine to rotate.
severe damage to the valve train can occur.
CAUTION: Do not overlook the four smaller bolts
at the front of the cylinder head. Do not attempt to
remove the cylinder head without removing these
four bolts.
CAUTION: Do not hold or pry on the camshaft tar-
get wheel for any reason. A damaged target wheel
can result in a vehicle no start condition.
NOTE: The cylinder head is attached to the cylin-
der block with fourteen bolts.
21. Remove the cylinder head retaining bolts using
the sequence provided.
22. Remove the cylinder head and gasket. Discard the gasket.
CAUTION: Do not lay the cylinder head on its gasket sealing surface, do to the design of the cylinder head
gasket any distortion to the cylinder head sealing surface may prevent thegasket from properly sealing
resulting in leaks.
CLEANING
To ensure engine gasket sealing, proper surface preparation must be performed, especially with the use of alumi-
num engine components. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
INSPECTION
1. Inspect the cylinder head for out-of-flatness, using a straightedge and a feeler gauge. If tolerances exceed
0.0508 mm (0.002 in.) replace the cylinder head.
2. Inspect the valve seats for damage. Service the valve seats as necessary.
3. Inspect the valve guides for wear, cracks or looseness. If either condition exist, replace the cylinder head.

INSTALLATION
INSTALLATION - LEFT CYLINDER HEAD
NOTE: The cylinder head bolts are tightened using
a torque plus angle procedure. The bolts must be
examined BEFORE reuse. If the threads are
necked down (2) the bolts should be replaced.
Necking can be checked by holding a straight edge
against the threads. If all the threads do not contact
the scale, the bolt should be replaced.
CAUTION: When cleaning cylinder head and cylin-
der block surfaces, DO NOT use a metal scraper
because the surfaces could be cut or ground. Use
only a wooden or plastic scraper (1).
1. Clean the cylinder head and cylinder block mating
surfaces.
2. Position the new cylinder head gasket on the locat-
ing dowels.
CAUTION: When installing cylinder head, use care
not damage the tensioner arm or the guide arm.
3. Position the cylinder head onto the cylinder block.
Make sure the cylinder head seats fully over the
locating dowels.
NOTE: The four smaller cylinder head mounting
bolts require sealant to be added to them before
installing. Failure to do so may cause leaks.