Porsche 944 - Manual (Page 73)

944 Engine/Cylinder Head, Valves
15
Adjusting with dial gages
2. Align dial gage with improvised
extension (205 mm long) on piston
crown {cylinder 1). 3 mm
pretension.
Align second gage with hydraulic
tappet of cylinder 1 intake
valve. The dial gage must be
aligned perpendicular to the
intake valve. 3 mm pretension.
3. Remove distributor rotor and lock
camshaft sprocket with 3
M 5 x 15, to prevent camshaft
sprocket or camshaft turning when
camshaft central bolt is
slackened.
4. 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
5. Tighten temporary retaining bolts
(6 Nm, 4.4 ftlb) and central bolt
(approx. 40 Nm, 30 ftlb).
Printed in Germany - XIII, 1987 Checking an Adjusting
Camshaft Settings
15 - 103