Engine » 2.5L engine » Service procedures Valve timing
Disconnect the spark plug wires and remove the
spark plugs.
Remove the engine cylinder head cover.
Remove the capscrews, bridge and pivot assembly,
and rocker arms from above the No.1 cylinder.
Alternately loosen each capscrew, one turn at a
time, to avoid damaging the bridge.
Rotate the crankshaft until the No.4 piston is at
top dead center (TDC) on the compression stroke.
Rotate the crankshaft counterclockwise (viewed
from the front of the engine) 90.
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.
Set the dial indicator pointer at zero.
Set the dial indicator pointer at zero.
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).
The timing notch index on the vibration damper
should be aligned with the TDC mark on the timing
degree scale.
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.
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.