Dodge RAM TRUCK 1500 1995 Service Manual page 1006

E H — — — — ™ — - — 5 j l (DIESEL) ENGINE 9-165
CAMSHAFT .
REMOVAL
(1) Remove the following parts:
• Valve covers
• Rocker lever assemblies
• Push rods
• Drive belt
• Fan hub assembly
• Vibration damper
• Gear housing cover
• Lift pump
(2) Insert the dowels through the push tube holes
and into the top of each tappet. When properly in­
stalled, the dowels can be used to pull the tappets up
(Fig. 6).
(8) Pull the tappets up and wrap a rubber band
around the top of the dowel rods (Fig. 6). This will
prevent the tappets from dropping down.
DOWEL TOOL
Fig. 6 Holding Tappets in Place
(4) Rotate the crankshaft to align the crankshaft to
camshaft timing marks (Fig. 7).
J9109-51
Fig. 7 Align Crankshaft to
Camshaft
(5) Remove the bolts from the thrust plate (Fig. 8)
(6) Remove the camshaft, gear and thrust plate.
Fig. 8 Thrust Plate Bolt Location
INSPECTION
Inspect the lift pump lobe, valve lobes and bearing
journals for wear, cracking, pitting and other dam­
age.
Clean the camshaft and gear with solvent and a
lint free cloth.
Inspect the gear teeth for wear and damage. Look
for cracks at the root of the teeth.
Measure the bearing journals, lift pump lobe and
valve lobes (Fig. 9).
CAMSHAFT JOURNAL DIAMETER (MIN.)
53.962 mm (2.1245 inch)
VALVE LOBE HEIGHT (MIN.)
INTAKE - 47.040 min (1.852 inch)
EXHAUST - 46.770 mm (1.841 inch)
LIFT PUMP LOBE DIAMETER (MIN.)
35.500 mm (K398 inch)
J9109-53
Fig. 9 Bearing Journal/Valve Lobe Measurements