Dodge Ram Truck 1500-2500-3500. Manual — part 1292

6. Remove the camshaft position sensor.

7. Hold the camshaft with Special Tool 8428 Camshaft

Wrench (2), while removing the camshaft sprocket
bolt and sprocket.

8. Starting at the outside working inward, loosen the

camshaft bearing cap retaining bolts 1/2 turn at a
time. Repeat until all load is off the bearing caps.

CAUTION: DO NOT STAMP OR STRIKE THE CAM-
SHAFT BEARING CAPS. SEVERE DAMAGE WILL
OCCUR TO THE BEARING CAPS.

NOTE: When the camshaft is removed the rocker
arms may slide downward, mark the rocker arms
before removing camshaft.

9. Remove the camshaft bearing caps and the

camshaft.

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ENGINE - 3.7L - SERVICE INFORMATION

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INSTALLATION

1. Lubricate camshaft journals with clean engine oil.

NOTE: Position the right side camshaft so that the
camshaft sprocket dowel is near the 10 o’clock
position, This will place the camshaft at the neu-
tral position easing the installation of the camshaft
bearing caps.

2. Position the camshaft into the cylinder head.

3. Install the camshaft bearing caps, hand tighten the

retaining bolts.

NOTE: Caps should be installed so that the
stamped numbers on the caps are in numerical
order, ( 1 thru 4 ) from the front to the rear of the
engine. All caps should be installed so that the
stamped arrows on the caps point toward the front
of the engine.

4. Working in 1/2 turn increments, tighten the bearing

cap retaining bolts starting with the middle cap
working outward.

5. Torque the camshaft bearing cap retaining bolts to

11 N·m (100 in. lbs.).

6. Position the camshaft drive gear into the timing chain aligning the V6 mark between the two marked chain links

(Two links marked during removal).

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ENGINE - 3.7L - SERVICE INFORMATION

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7. Using Special Tool 8428 Camshaft Wrench (2),

rotate the camshaft until the camshaft sprocket
dowel is aligned with the slot in the camshaft
sprocket. Install the sprocket onto the camshaft.

CAUTION:

Remove

excess

oil

from

camshaft

sprocket bolt. Failure to do so can cause bolt
over-torque resulting in bolt failure.

8. Remove excess oil from camshaft sprocket bolt,

then install the camshaft sprocket retaining bolt and
hand tighten.

9. Remove timing chain wedge special tool 8379 (1).

10. Using Special Tool 6958 spanner wrench with

adapter pins 8346, torque the camshaft sprocket
retaining bolt to 122 N·m (90 ft. lbs.).

11. Install the camshaft position sensor.

12. Install the cylinder head cover (Refer to 9 -

ENGINE/CYLINDER

HEAD/CYLINDER

HEAD

COVER(S) - INSTALLATION).

COVER - CYLINDER HEAD

REMOVAL

1. Disconnect battery negative cable.

2. Remove air cleaner assembly, resonator assembly and air inlet hose.

3. Drain cooling system, below the level of the heater hoses (Refer to 7 - COOLING - STANDARD PROCEDURE).

4. Remove accessory drive belt (Refer to 7 - COOLING/ACCESSORY DRIVE/DRIVE BELTS - REMOVAL).

5. Remove air conditioning compressor retaining bolts and move compressor to the left.

6. Remove heater hoses.

7. Disconnect injector and ignition coil connectors.

8. Disconnect and remove positive crankcase ventilation (PCV) hose.

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ENGINE - 3.7L - SERVICE INFORMATION

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9. Remove oil fill tube.

10. Un-clip injector and ignition coil harness and move away from cylinder head cover.

11. Remove right rear breather tube and filter assembly.

12. Remove cylinder head cover retaining bolts.

13. Remove cylinder head cover.

INSTALLATION

CAUTION: Do not use harsh cleaners to clean the cylinder head covers. Severe damage to covers may
occur.

NOTE: The gasket may be used again, provided no cuts, tears, or deformation has occurred.

1. Clean cylinder head cover and both sealing surfaces. Inspect and replace gasket as necessary.

2. Tighten cylinder head cover bolts and double ended studs to 12 N·m (105 in. lbs).

3. Install right rear breather tube and filter assembly.

4. Connect injector, ignition coil electrical connectors and harness retaining clips.

5. Install the oil fill tube.

6. Install PCV hose.

7. Install heater hoses.

8. Install air conditioning compressor retaining bolts.

9. Install accessory drive belt (Refer to 7 - COOLING/ACCESSORY DRIVE/DRIVE BELTS - INSTALLATION).

10. Fill Cooling system (Refer to 7 - COOLING - STANDARD PROCEDURE).

11. Install air cleaner assembly, resonator assembly and air inlet hose.

12. Connect battery negative cable.

ROCKER ARM - VALVE

DESCRIPTION

The rocker arms are steel stampings with an integral roller bearing. The rocker arms incorporate a 0.5 mm oil hole
in the lash adjuster socket for roller and camshaft lubrication.

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ENGINE - 3.7L - SERVICE INFORMATION

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