Chrysler RAM TRUCK 2500 1994 Service Manual page 856

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5 J L (DIESEL) ENGINE 9 - 135
MINIMUM
1.5 mm
( 0 . 0 6 0 inch)
M A X I M U M
2.0 mm
(0.080 inch)
J 9 1 0 9 - 4 5
Fig. 15 Waive Seat Width
VALVE STEM
SEAL
J9109-148
Fig. 16 Waive Stem Seal installation
COLLETS
VALVE
S P R I N G
ESSOR
J9109-147
Fig. 17 Waive, Waive Spring and Collet Installation
WARNING: W E A R PROTECTIVE EQUIPMENT AND
DO NOT STAND IN LINE WITH T H E VALVE S T E M
WHEN TAPPING THE VALVES.
(6) Tap the ends of the valve stems with a mallet
to verify the collets are seated.
(7) Install the cylinder head.
(8) Check the valve clearance adjustment.
VALVE CLEARANCE ADJUSTMENT
Use the timing pin to locate Top Dead Center
(TDC) for cylinder N o . l (Fig. 18). The timing pin is
located at the back of the gear housing and below the
injection pump. Be sure to disengage the timing pin
after locating top dead center.
J 9 1 0 9 - 3 3
Fig. 18 Locating TDC using Timing Pin
Adjust the valves when the engine is cold, below
60°C (140°P).
STEP 1
Adjust the clearance for the valves shown i n Fig.
19. The valve lash adjustment is 0.254 mm (0.010
inch) for the intake valve. The valve lash adjustment
is 0.508 mm (0.020 inch) for the exhaust valve.
Tighten the valve adjusting nuts to 24 N-m (18 ft.
lbs.) torque.
Be sure timing pin is disengaged before rotating
the crankshaft. Mark the pulley and rotate the
crankshaft 360°.
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J 9 1 0 9 - 3 4 F R O N T
Fig. 19 Adjust Waive Clearance—Step 1
STEP 2
Adjust the clearance for the valves shown i n Fig.
20. The valve lash adjustment is 0.254 mm (0.010