944 S L4-2479cc 2.5L DOHC (1987)
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Slacken camshaft central bolt - note that it is essential to counter. Slacken temporary retaining bolts. Turn engine in direction opposite to direction
of rotation until camshaft sprocket reaches stop inside feather-key groove.
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Tighten temporary retaining bolts (6 Nm, 4.4 ftlb) and central bolt (approx. 40 Nm, 30 ftlb).
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Turn the engine in the direction of rotation until piston reaches its upper limit of travel.
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Set dial gage of cylinder 1 intake-valve hydraulic tappet to 0.
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Turn crankshaft past ignition TDC (cylinder 1) while observing cylinder 1 intake-valve dial gage. Turn engine until gage shows 1.4 + 0.1 mm lift.
NOTE: For engine type M 44.41 (3.0 l) 89- inlet valve cylinder 1 testing adjusting value 0.75 ± 0.1 mm
Note: Do not turn engine in direction opposite to direction of rotation.
Ignition TDC For Cyl. 4
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Slacken central bolt and temporary retaining bolts; while doing so, ensure that the reading of 1.4 ± 0.1 mm on the dial gage is not changed.
TDC
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Now turn crankshaft slowly until dial gage shows that piston has reached the upper limit of travel. With the crankshaft in this position, the
camshafts are at ignition TDC for cylinder 4.
