Fiat 1996 Brava Service Manual page 243

Engine
Removing - refitting cylinder head
Bravo-Brava ^
TDIOO
10.
1. Remove the cam cover.
2. Use wrench 1852152000 to unscrew the
bolts retaining the cylinder head to the en­
gine block, then remove together with the
intake manifold.
FITTING CYLINDER HEAD GASKET
Check the amount by which the piston
protrudes from the upper surface of the
engine block and fit a cylinder head gasket
of the thickness shown in the table in or­
der to ensure the compression ratio re­
mains as specified. Fit the gasket to the
engine block by inserting the locating pins
and ensure that the wording "ALTO"
[TOP] is facing the operator.
Average piston
protrusion
up to 0.80 mm
0.80 to 0.90 mm
more than 0.90 mm
Cylinder
head gasket
thickness
1.6 mm
1.7 mm
1.8 mm
No. of
notches
-
1
2
Reference notch
position
The cylinder head gasket is AS-
TADUR type. This type of gasket is
made from a special material which
undergoes a process of polymerisa­
tion while the engine is running and
therefore hardens considerably dur­
ing use. The following conditions
must be satisfied in order to ensure
polymerisation occurs:
keep the gasket sealed in its plastic bag;
take out only shortly before fitting;
do not oil the gasket or contaminate with
oil. Ensure cylinder head and crankcase
surfaces are thoroughly clean.
24 Publication no. 506.670/08