DODGE RAM SRT-10 2006 Service Repair Manual

6. Remove cylinder head cover (1).
NOTE: The gasket (2) may be used again, provided
no cuts, tears, or deformation has occurred.

INSTALLATION
CAUTION: Do not use harsh cleaners to clean the
cylinder head covers. Severe damage to covers
may occur.
CAUTION: DO NOT allow other components
including the wire harness to rest on or against
the engine cylinder head cover. Prolonged contact
with other objects may wear a hole in the cylinder
head cover.
1. Clean cylinder head cover (1) and both sealing sur-
faces (1,4,). Inspect and replace gasket (2) as nec-
essary.
2. Install cylinder head cover and hand start all fas-
teners. Verify that all double ended studs (3) are in
the correct location.

3. Tighten cylinder head cover bolts and double
ended studs to 8Nꞏm (70 in. lbs). Begin torque
sequence in the middle of head cover and torque
bolts moving outward in a crisscross pattern from
top to bottom.
4. Before installing coil(s), apply dielectric grease to
inside of spark plug boots (1).
5. Install ignition coils.

6. Torque fasteners (3) to 7Nꞏm (62 in. lbs).
7. Connect, ignition coil electrical connectors (1).
8. Install PCV hose.
9. Connect battery negative cable.

VALVES & SEATS - INTAKE/EXHAUST
DESCRIPTION
DESCRIPTION - VALVE GUIDES
The valve guides are made of powdered metal and are pressed into the cylinder head. 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.
DESCRIPTION
Both the intake and exhaust valves are made of steel. The intake valve is 50.93 mm (2.00 inches) in diameter and
the exhaust valve is 39.53 mm (1.55 inches) in diameter. All valves use three bead lock keepers to retain the
springs and promote valve rotation.
STANDARD PROCEDURE - REFACING
NOTE: Valve seats that are worn or burned can be reworked, provided that correct angle and seat width are
maintained. Otherwise the cylinder head must be replaced.
NOTE: When refacing valves and valve seats, it is important that the correct size valve guide pilot be used
for reseating stones. A true and complete surface must be obtained.
1. Using a suitable dial indicator measure the center of the valve seat Total run out must not exceed 0.051 mm
(0.002 in).
2. Apply a small amount of Prussian blue to the valve seat, insert the valve into the cylinder head, while applying
light pressure on the valve rotate the valve. Remove the valve and examine the valve face. If the blue is trans-
ferred below the top edge of the valve face, lower the valve seat using a 15 degree stone. If the blue is trans-
ferred to the bottom edge of the valve face, raise the valve seat using a 65 degree stone.
3. When the seat is properly positioned the width of the intake seat must be 1.018 - 1.62 mm (0.0464 - 0.0637 in.)
and the exhaust seat must be 1.48 - 1.92 mm (0.058 - 0.075 in.).
4. Check the valve spring installed height after refacing the valve and seat.Theinstalledheightforbothintakeand
exhaust valve springs must not exceed 46.0 mm (1.81 in.).
VALVE FACE AND VALVE SEAT ANGLE CHART
DESCRIPTION SPECIFICATION
SEAT WIDTH
INTAKE 1.018 - 1.62 mm
(0.0464 - 0.0637 in.)
EXHAUST 1.48 - 1.92 mm
(0.058 - 0.075 in.)
FA C E A N G L E
(INT. AND EXT.) 45° - 45
1⁄2°
SEAT ANGLE
(INT. AND EXT.) 44
1⁄2° - 45°

5. The valve seat must maintain an angle of 44.5 –
45.0 degrees angle.
6. Thevalvefacemustmaintainafaceangleof45.0
– 45.5 degrees angle.
REMOVAL
1. Remove the cylinder head (Refer to 9 - ENGINE/CYLINDER HEAD - REMOVAL).
2. Compress valve springs using Valve Spring Compressor Tool special tool# C-3422and adapter 8464.
3. Remove valve retaining locks, valve spring retainers, valve stem sealsand valve springs.
4. Before removing valves, remove any burrs from valve stem lock grooves toprevent damage to the valve guides.
Identify valves to ensure installation in original location.
INSTALLATION
1. Clean valves thoroughly. Discard burned, warped and cracked valves.
2. Remove carbon and varnish deposits from inside of valve guides with a reliable guide cleaner.
3. Measure valve stems for wear. If wear exceeds 0.051 mm (0.002 inch), replace the valve.
4. Coat valve stems with lubrication oil and insert them in cylinder head.
5. If valves or seats are reground, check valve stem height. If valve is too long, replace cylinder head.
6. Install new seals on all valve guides. Install valve springs and valve retainers.
7. Compress valve springs with Valve Spring Compressor Tool special tool #C- 3422and adapter 8464, install locks
and release tool. If valves and/or seats are ground, measure the installedheight of springs. Make sure the mea-
surement is taken from bottom of spring seat in cylinder head to the bottom surface of spring retainer.
8. Install cylinder head (Refer to 9 - ENGINE/CYLINDER HEAD - INSTALLATION).

ROCKER ARM
REMOVAL
1. Remove cylinder head cover. (Refer to 9 -
ENGINE/CYLINDER HEAD/CYLINDER HEAD
COVER(S) - REMOVAL).
2. Install pushrod retaining plate (1)special tool 9070.

3. Loosen the rocker shafts using the sequence pro-
vided.
CAUTION: The rocker shaft assemblies are not
interchangeable between intake and exhaust. The
intake rocker arms are marked with an “I”.
4. Remove the rocker shafts. Note location for reas-
sembly.
CAUTION: The longer push rods are for the
exhaust side, and the shorter push rods are for
intake side.
5. Remove the pushrods. Note pushrod location for
reassembly.
CAUTION: Do not remove the retainers from the rocker shaft. The assembly tangs (1) at the bottom of the
retainers (2) can be damaged, causing the assembly tangs to break off, and get into the engine.

INSTALLATION
CAUTION: The longer push rods are for the
exhaust side, and the shorter push rods are for
intake side.
1. Install the push rods in the same order as
removed.
2. Install the pushrod retaining plate (1) special tool
9070.
CAUTION: Ensure that retainers (2) and rocker arms (4) are not overlapped when torquing bolts.
CAUTION: Verify that pushrod is installed into rocker arm (4) and tappet correctly while installing rocker
shaft assembly. Recheck after rocker shaft has been torqued to specification.

CAUTION: The rocker shaft assemblies are not
interchangeable between intake and exhaust. The
intake rocker arms are marked with the letter “I”.
3. Install rocker shaft assemblies in the same order
as removed.
4. Tighten the rocker shaft bolts to 22 Nꞏm (195 in.
lbs.) torque,using the sequence provided.
CAUTION: DO NOT rotate or crank the engine dur-
ing or immediately after rocker arm installation.
Allow the hydraulic roller tappets adequate time to
bleed down (about 5 minutes).
5. Remove pushrod retaining plate (1) special tool
9070.