Dakota 2WD L4-2.5L VIN P (2001)
Valve: Component Tests and General Diagnostics
STANDARD PROCEDURE-VALVE TIMING VERIFICATION
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Disconnect the spark plug wires and remove the spark plugs.
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Remove the engine cylinder head cover.
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Remove the capscrews, bridge and pivot assembly, and rocker arms from above the No.1 cylinder.
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Alternately loosen each capscrew, one turn at a time, to avoid damaging the bridge.
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Rotate the crankshaft until the No.4 piston is at Top Dead Center (TDC) on the compression stroke.
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Rotate the crankshaft counterclockwise (viewed from the front of the engine) 90°.
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Install a dial indicator on the end of the No. 1 cylinder intake valve push rod. Use rubber tubing to secure the indicator stem on the push rod.
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Set the dial indicator pointer at zero.
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Set the dial indicator pointer at zero.
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Rotate the crankshaft clockwise (viewed from the front of the engine) until the dial indicator pointer indicates 0.305 mm (0.012 inch) travel
distance (lift).
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The timing notch index on the vibration damper should be aligned with the TDC mark on the timing degree scale.
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If the timing notch is more than 13 mm (1/2 inch) away from the TDC mark in either direction, the valve timing is incorrect.
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If the valve timing is incorrect, the cause may be a broken camshaft pin. It is not necessary to replace the camshaft because of pin failure. A spring
pin is available for service replacement.
