Camshaft Drive Chain Blades; Removal; Installation; Exhaust Decompressors - Triumph Thunderbird Service Manual

Camshaft Drive Chain Blades
Removal
Before starting work, ensure the motorcycle is stabilised
and adequately supported. This will help prevent it from
falling and causing injury to the operator or damage to
the motorcycle.
Note:
Cylinder Head
Exhaust Decompressors
Disassembly
The decompressor flyweights, and camshafts are
handed, and must be installed to the correct side of the
exhaust camshaft. Incorrect installation of the flyweights
or camshafts may result in poor starting, engine
malfunction or engine damage.
1. Remove the cylinder head (see page 3-20>.
Note:
• Note the position of the camshaft drive chain
rubbing blade upper mounting for installation.
2. Lift the camshaft drive chain tensioner rubbing blade
out of the crankcase.
•
The camshaft drive chain rubbing blade can
only be removed after the cylinder head has
been removed. The camshaft drive chain
tensioner blade can be removed after the
exhaust camshaft has been removed. This
procedure assumes removal of both blades.
Note:
• It is not necessary to remove the exhaust
camshaft from the engine to overhaul the
decompressors, however it is recommended to
do so to help avoid the loss of components.
This procedure shows the exhaust camshaft
removed for clarity.
1.
Remove and discard the E-c1ip from the rear of the
decompressor boss.
eftc
1. Exhaust camshaft
2. E-c1ip
3. Pivot pin
1. Camshaft drive chain tensioner rubbing blade
2. Mounting lugs
Inspection
1.
Inspect the camshaft drive chain blades for wear or
damage. Renew as necessary.
Installation
1.
Refit the camshaft drive chain rubbing blade. Ensure
the upper mounting lugs are correctly located in the
upper crankcase as noted during removal.
2. Refit the cylinder head (see page 3-21).
SelVice Manual - Thunderbird
3.13