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944 Engine/Cylinder Head, Valve Drive
15
Installing camshafts
1.
Turn engine in direction of rotation by ap-
prox. 45° before ignition TDC (cylinder
1).
2. Lay intake shaft and exhaust camshaft in
the timing chain.
3. Place both camshafts in the timing chain
so
that the cast lugs are alignedwith the
marked links of the chain. Oil the bearing
jounals and place in the bearings
carefully
together with the timing chain.
Note
The distance between the marking on the
intake camshaft and the markingon the
exhaust camshaft amounts to 7 outer chain
links; the distance betweenthe cast lugs
measures approx. 113 mm.
11838
4.
Fasten the camshafts to the cylinder
head
with assembly bridges SpecialTool 9248
together with the clamping bolt of Special
Tool 9226.
87/422
5.
Install the bearing bridges and bearing
cover af the camshaft. The
bearingbridges
and cover are production-matched to the
cylinder head and must alwaysbe
installed
as a set. Note the identification code and
pairing number.
Tightening torque for bearing bridges
and
cover 20 Nm.
11804
Installing camshafts
Printed in Germany - XVII, 1988
15 - 111