Triumph TIGER Service Manual page 74

Using the correct procedure to fit and tighten the
cylinder head bolts will ensure the long term reliability of
the cylinder head gasket.
Clean each bolt, paying particular attention to the
threads and -bolt-head areas. If any of the threads
under
or bolt-head areas are damaged, replace the bolt(s).
Lubricate the threads with
clean with a lint-free cloth leaving minimal oil on the
threads (that is, almost dry to touch).
Tighten the bolts using the three-stage procedure given
below.
Failure to observe these important items may lead to
engine damage through a damaged head gasket.
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ars
-
1. Rubbing strips
6. Fit the bolts to the head
The head bolts are finally tightened in three stages.
This is to ensure that the cylinder head
correctly to the head and crankcase. The three stages
are as follows:
Note:
• For stages
A and B of the head bolt
tightening operation, a torque wrench of
known,
accurate calibration must be used.
• Tighten the head
numerical sequence used
bolts, 20 Nm.
to
• Tighten the head
numerical
sequence used to release the
bolts,
to 35 Nm.
final
• For the torque operation,
out
carried in the same numerical sequence
used ` to release the
method is used. The bolts must be turned
0
through 90 to reach
accurately -gauge the 90
tool 3880105-T0301 as follows:
TWUMOH
engine oil, and then wipe
I
and
tighten until finger tight.
gasket
seals
bolts,
in the same
to release
the
bolts in
the same
which
again is
bolts,
a 'torque turn'
the final setting. To
.
0
turn,
use service
Service Manual - Tiger
r
cary
Cylinder Head Bolt Tightening Sequence
7. Fit the screws securing the side of the cylinder head
to the crankcase and tighten to 10 Nm.
1. Cylinder head to upper
crankcase screws
8. Clean and lubricate the tappet buckets with clean
engine oil and refit the buckets and shims in the
from
same locations which they were removed.
9.
Refit the cam shafts (see page 3-12).
10. Install the engine to the frame (see page 9-6).
9
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