Porsche 928 Workshop Manual page 253

928
Engine/Cylinder Head, Valves
15
Adjusting
Place both camshafts in timing
chain such that the marks of the
camshafts or the cast noses are
aligned with marked chain links.
Lubricate bearing surfaces with oil
and carefully place timing chain in
bearings.
The distance between the markings
on the inlet and outlet camshafts is
7 outer links of the chain, and/or
aprox. 113 mm spacing between the
cast lugs.
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Note:
The crankshaft must be at the 45"
before ignition TDC (cylinder 1)
mark so that the valves do not
contact the piston crown.
15.Secure camshafts in cylinder
head with Special Tool 9226.
16.Install bearing bridges and
bearing covers of camshafts.
Bearing bridges and covers are
machined with the cylinder head
and must always be installed
together. Note identifier and
pairing code.
Tightening torque of bearing
bridge and covers M 6
10
Nm
(7 ftlb)
M8 20 Nm
(14 ftlb)
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Printed in Germany - XX,1988 Removing and Installing Camshafts
15 - 127