Camshafts; Camshaft Cap Numbering - Triumph Tiger Service Manual

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CAMSHAFTS
Removal
NOTE:
• The camshafts can be removed from the head
without the complete removal of the cam
chain. However, the chain must first be
detached from the camshafts. The camshafts
and sprockets are removed as an assembly.
1. Remove the cam cover and cam chain tensioner as
described earlier in this section.
2. Remove the cam chain top pad from the cam chain
side of the cylinder head.
1. Cam Chain Top Pad
3. To ensure that the camshaft caps are refitted in the
same positions as prior to removal, mark the
position of each camshaft cap in relation to the
head. A laundry marker or similar may be used to
mark the cap positions.
B
6
5
4
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A 3 2 1
Camshaft Cap Numbering
3.9
CYLINDER HEAD & CAMSHAFT 3
NOTE:
•
4.
5.
The caps are numbered sequentially and must
not be' interchanged for a different position on
the head. The camshaft caps on the outside of
the timing chain (known as outriggers) are
marked 'A' for the exhaust and '8' for the inlet.
Progressively release each of the fasteners
securing the camshaft caps of the inlet camshaft to
the cylinder head.
Release the caps for the exhaust camshaft.
A.
CAUTION: Never completely release one
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camshaft cap in isolation from the others
as this may cause the caps to crack.
Always progressively release all the camshaft
caps of one camshaft before final removal.
1,\
CAUTION: Always completely release
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and remove one camshaft before starting
to release the other. If both camshafts are
progressively released at the same time, the
valves may contact each other and cause damage
to the valve head areas and valve stems.
NOTE:
•
The inlet and exhaust camshafts are different.
They can be identified by a plain area in the
centre of the exhaust cam and a groove in the
same place on the inlet cam.
2
1
3
1. Exhaust Camshaft
2. ,Plain Section
3. Inlet Camshaft
4. Grooved section
6. Once the pressure on all the camshaft caps has
been released, remove the fasteners and caps
complete with dowels.