Contour V6-153 2.5L DOHC (1996)
Timing Chain: Service and Repair
CAUTION: The timing arrows/flags on the back of the camshaft sprocket(s) are mis-marked by as much as 30° rotation. The arrows or flags should not
be used for engine service procedures, including timing diagnostics.
CAUTION: The 2.5L Duratec engines are not "free-wheeling." An error in timing chain installation may result in severe valve/piston damage. Use
extreme care during timing chain installation.
REMOVAL
1. Remove the camshaft oil seal.
2. Remove the engine front cover.
3. Remove the camshaft oil seal retainer.
4. Remove the crankshaft position sensor pulse wheel.
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Install the pulse wheel with the keyway in the 2.5L slot.
NOTE: The pulse ring has two keyways, one for the 3.0L engine and one for the 2.5L engine.
5. Install the crankshaft pulley and bolt.
CAUTION: Rotate the crankshaft clockwise to position the crankshaft keyway to the 11 o'clock position and the engine to top dead center (TDC)
No. 1 cylinder prior to the removal and installation of the camshafts and the roller followers or damage to the engine may occur.
NOTE:
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Do not rotate the crankshaft counterclockwise. The timing chains may bind causing engine damage.
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If the camshaft sprockets do not align, rotate the crankshaft one complete revolution. See: Testing and Inspection