Triumph SPEED TRIPLE 955cc - Camshaft and Bearing Cap Inspection

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1.
Inlet Camshaft Bolt Holes
2.
Exhaust Camshaft Bolt Holes
2.
Measure the camshaft journals with a micrometer
or vernier. If any journal is outside the specified
tolerance, replace the camshaft.
Outrigger Journal Diameter
Standard: 22.923 - 22.936 mm
Standard Journal Diameters
Standard: 22.93 mm
3 CYLINDER HEAD & CAMSHAFT
NOTE:
•
Each cap is located by two dowels which align
the cap to the head. If the caps cannot be
removed using hand pressure, gently tap each
cap with a soft faced tool to release.
7.
Lift the cam chain from the exhaust camshaft
sprocket and remove the exhaust camshaft.
8.
Repeat the procedure for the inlet camshaft.
Camshaft and Bearing Cap Inspection
1.
Inspect the camshaft sprockets for damaged and
worn teeth. Replace as necessary.
CAUTION: The same sprocket is used for
both inlet and exhaust camshafts. To
attach the sprocket to the different camshafts,
different bolt holes are used.
Never fit a camshaft sprocket to a camshaft using
incorrectly identified bolt holes. Severe engine
damage wil
l result
from i nco
rr
ec
t atta
c
hment.
1.
Outrigger Journal
2.
Standard Journal
3.
Examine all camshaft and camshaft bearing caps
for excessive wear and damage, paying particular
attention to the outrigger caps.
4.
Check the journal-to-head clearances, using
`Plastigauge'
(Triumph part number
3880150-T0301) as follows:
1
•
Ensuring that the camshaft sprocket alignment
marking is located as for removal, assemble
one camshaft to the head and progressively
tighten the bearing caps to
10 Nm.
•
Remove one bearing cap only and wipe the
exposed areas of both the camshaft journal
- ) and cap.
•
Apply a thin smear of grease to the journal and
a small quantity of silicone release agent to the
cap.
•
Size a length of the Plastigauge to fit across the
camshaft journal. Fit the Plastigauge to the
journal using the grease to hold the strip in
place.
•
Refit the cap and evenly and progressively
tighten all the camshaft cap bolts to
10 Nm.
•
Release the cap bolts and remove the cap.
Using the gauge provided with the Plastigauge
kit, measure the width of the now compressed
Plastigauge.
3.10