Porsche 928 Workshop Manual page 243

15
Engine/Cylinder Head, Valve Drive
928
INSTALLING CYLINDER HEAD (32 VALVE ENGINE)
Hexagon cylinder-head bolts
Note:
The cylinder head can also be in-
stalled with the engine in place.
If both cylinder heads are to be
removed and installed, it is advisable
to remove the engine first.
1.
2.
Place cylinder-head gasket in
position right way round.
Install cylinder head
Torquing sequence:
(3 stages)
Qemoval sequence:
reverse order
1st stage 20 Nm (15 ftlb)
2nd
stage 90" of turn
3rd stage 90" of turn
1st stage
20 Nm (15 ftlb)
.I '&,i
2nd staqp 90' of turn
3rd stage 90" of turn
Note:
As a rule, do not use lubricant
when installing the cylinder-
head nuts or hex bolts and washers.
It is only necessary to apply a
light coat of engine oil to the
stud bolts or hex bolts.
l
15 - 118 Installing Cylinder Head
XX,1988 -
Printed in Germany