VAlVE
REGRINDING AND CYLlNDER HEAD
SOlT
TORQUE
REQUIREMENTS
Should the compression of a cylinder be lacking dissassemble cyllnder head
from
the
cyHnder
block
and
dress
the
valve
seats
and
valves.
When bolting the cylinder head, elean through\y the contact faces and fit the
head gasket as
described:
•position the adhesive-faced gaskettothe block
and
make
sure
the
ALTO
(high)
writing on it is brought to contact the oylinder head.
Not<z:
Torquing down
of
the cylinder head bolts should
be
performed
in
fours
steps
(a
15
sec, step-to-step intervai
is
needed). Strictly complywith the opera·
tion sequence indicated
in
the figures and on table here below.
0)
0)
Step
2 3
4
®
0 0
(ii)
@ ,,-, 0
,--
0
,--
0
,--
12)
Pre·torque
Pre-torque check
Torque angle
;'
" ,"
..
"
/'
'"
~..
"','-
I
,1
""
\ r
'\
I , 1 , 1 1 t ;
\
/\
/~,
/\
"
Nl
70Nm
70Nm
90"
90"
0)'
'0'
'0'
'@'
'@
,-
15
......
_.......
7
"'-
---
1
'---'"
m
.....
__
/
19-
models
(7.t kgm)
(7.1
kgm)
@
0
(0
@
29
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