Inspection - Triumph Rocket III Classic Service Manual

Cylinder Head
To fit a sprocket to an inlet camshaft, position the sprocket
to the camshaft and align the hole marked ' I N' with one
of the threaded holes in the camshaft. If both bolt-holes in
the camshaft line up correctly with the holes in the
sprocket, the sprocket is in the correct place. If the holes
do not line up, then the sprocket should be rotated by a
half-turn.
cbqe
Inspection
1. Inspect the sprockets for damage and worn or
broken teeth.
2. Inspect the bearing surfaces in the cylinder head and
camshaft ladder. If wear or damage is found, the
cylinder head must be replaced.
3. Inspect the camshaft drive chain (see page
3-10>.
4. Check camshaft journal to camshaft ladder clearance
using Plastigage <Triumph part number 3880150-
T0301) as follows:
..
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During the following procedure, the engine must not be
rotated. Damage to valves, pistons and the cylinder head
can result from rotating the engine.
a) Position a camshaft to the cylinder head in its
correct location, (inlet camshaft to inlet valves,
exhaust camshaft to exhaust valves). Ensure
that the timing marks on the camshaft sprocket
are positioned as for removal.
b) Release and remove the camshaft ladder as
previously described. Wipe the exposed areas
of one of the camshaft journals and the
corresponding position on the camshaft ladder.
c)
Apply a thin smear of grease to the wiped
camshaft journal and a small quantity of silicone
release agent to the corresponding position on
the camshaft ladder.
d) Size a piece of Plastigage to fit across the wiped
camshaft journal.
e) Fit the Plastigage to the camshaft journal using
the grease to hold it in place.
f)
Position the camshaft ladder to the cylinder
head, aligning bearing areas with camshaft
journals. At this stage, it is not necessary to fit
the camshaft drive chain top pad.
g) Finger-tighten the camshaft ladder bolts until
the under-head areas are in contact with the
camshaft ladder.
h) In the sequence shown below evenly and
progressively tighten the camshaft ladder bolts,
approximately half a turn each, until the
camshaft ladder is in full contact with the head.
Camshaft Ladder Tightening Sequence
j)
In the same sequence, torque each camshaft
ladder bolt to
10 Nm.
P
Release and remove the camshaft ladder as
previously described.
k)
Utilising the gauge provided with the Plastigage
kit, measure the width of the now compressed
Plastigage.
Taking a Plastigage Measurement
5. Calculate the camshaft journal clearance using the
chart provided with the Plastigage kit.
3.16
SelVice Manual- Rocket 1111 Classic 1 Touring