Dodge Dakota Sport 2001 Service Manual page 1188

AN
CYLINDER HEAD COVER(S) (Continued)
(12) Install air cleaner assembly, resonator assem-
bly and air inlet hose.
(13) Connect battery negative cable.
INSTALLATION—LEFT SIDE
CAUTION: Do not use harsh cleaners to clean the
cylinder head covers. Severe damage to covers
may occur.
CAUTION: DO NOT allow other components includ-
ing the wire harness to rest on or against the cylin-
der head cover. Prolonged contact with other
objects may wear a hole in the engine cylinder head
cover.
(1) Clean cylinder head cover and both sealing sur-
faces. Inspect and replace gasket as necessary.
(2) Install cylinder head cover and hand start all
fasteners. Verify that all studs are in the correct loca-
tion shown in (Fig. 43).
Fig. 43 Cylinder Head Cover—Left
ITEM DESCRIPTION
1 Cover Fasteners
(3) Tighten cylinder head cover bolts and double
ended studs to 12 N·m (105 in. lbs.).
(4) Install left side breather and connect breather
tube.
(5) Connect injector electrical connectors and injec-
tor harness retaining clips.
(6) Install the resonator and air inlet hose.
(7) Connect negative cable to battery.
INTAKE/EXHAUST VALVES &
SEATS
DESCRIPTION
have chrome plated stems to prevent scuffing. Each
valve is actuated by a roller rocker arm which pivots
on a stationary lash adjuster. 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 sur-
face must be obtained.
center of the valve seat Total run out must not
exceed 0.051 mm (0.002 in).
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 transferred below the top edge of the
valve face, lower the valve seat using a 15 degree
stone. If the blue is transferred to the bottom edge of
the valve face, raise the valve seat using a 65 degree
stone.
TORQUE
12 N·m (105 in. lbs.)
of the intake seat must be 1.75 – 2.36 mm (0.0689 –
0.0928 in.) and the exhaust seat must be 1.71 – 2.32
mm (0.0673 – 0.0911 in.).
refacing the valve and seat. The installed height for
both intake and exhaust valve springs must not
exceed 41.44 mm (1.6315 in.) .
face angle of 44.5 – 45 degrees angle (Fig. 44).
The valves are made of heat resistant steel and
(1) Using a suitable dial indicator measure the
(2) Apply a small amount of Prussian blue to the
(3) When the seat is properly positioned the width
(4) Check the valve spring installed height after
(5) The valve seat and valve face must maintain a
ENGINE 4.7L 9 - 159