Dodge RAM 1500 1998 Owner's Manual page 1401

9 - 178 ENGINE - 4.7L
TIMING BELT/CHAIN AND SPROCKETS (Continued)
Fig. 138 Tightening Right Side Camshaft Sprocket
1 - TORQUE WRENCH
2 - SPECIAL TOOL 6958 WITH ADAPTER PINS 8346
3 - LEFT CAMSHAFT SPROCKET
4 - RIGHT CAMSHAFT SPROCKET
(19) Rotate engine two full revolutions. Verify tim-
ing marks are at the follow locations:
• primary chain idler sprocket dot is at 12 o'clock
(Fig. 133)
• primary chain crankshaft sprocket dot is at 6
o'clock (Fig. 133)
• secondary chain camshaft sprockets "V8" marks
are at 12 o'clock (Fig. 133)
(20) Lubricate all three chains with engine oil.
(21) After installing all chains, it is recommended
that the idler gear end play be checked (Fig. 139).
The end play must be within 0.10–0.25 mm (0.004–
0.010 in.). If not within specification, the idler gear
must be replaced.
(22) Install timing chain cover (Refer to 9 -
ENGINE/VALVE TIMING/TIMING BELT / CHAIN
COVER(S) - INSTALLATION)
damper (Refer to 9 - ENGINE/ENGINE BLOCK/VI-
BRATION DAMPER - INSTALLATION).
(23) Install cylinder head covers (Refer to 9 -
ENGINE/CYLINDER
COVER(S) - INSTALLATION).
Bolt
and crankshaft
HEAD/CYLINDER
Fig. 139 Measuring Idler Gear End Play
1 - IDLER SPROCKET ASSEMBLY
2 - DIAL INDICATOR
NOTE: Before installing threaded plug in right cylin-
der head, the plug must be coated with sealant to
prevent leaks.
(24) Coat the large threaded access plug with
Mopar Thread Sealant with Teflon, then install
into the right cylinder head and tighten to 81 N·m
(60 ft. lbs.) (Fig. 128).
(25) Install the oil fill housing.
(26) Install access plug in left cylinder head (Fig.
128).
(27) Install power steering pump (Refer to 19 -
STEERING/PUMP - INSTALLATION).
(28) Install radiator fan shroud.
(29) Fill cooling system (Refer to 7 - COOLING -
STANDARD PROCEDURE).
(30) Connect negative cable to battery.
HEAD
DR