(18) Renew sparking plugs
For each sparking plug in
tum
1.
Remove ignition high tension lead from plug.
2. Unscrew plug from engine using a special plug
spanner or a box type spanner.
3. Discard plug.
4. Visually check new plug for damage to body and
electrodes, discard plug
if
damage
is
present.
5. Check electrode gap on new plug, which if correct
will just allow a
0'025 in (0'64 mm) feeler gauge. to
slide slowly between the electrodes under light
pressure.
If
adjustment is necessary.
6. (aj Using a suitable tool, carefully move the side
electrode.
(b) Recheck the
gap
and repeat this procedure until
the gap
is
correct.
7. Check sealing washer for cracks and distortion, and
renew washer
if
necessary.
8. Fit new sparking plug to engine.
9. Tighten plug to
14
to 20
Ibfft
(1'9 to 2'8
kgfm).
10. Refit high tension lead to plug.
(19) Check/adjust torque
of
cylinder head nuts/bolts
1.
Remove rocker cover - See 12.29.42.
2.
Using
the sequence shown, tighten cylinder head nuts
to
60 to 80 Ibf
ft
(8'3 to 11'1 kgf m).
3. Check/adjust
valve
rocker clearances - See 12.29.48.
4. Check rocker cover gasket for damage, and renew
if
necessary.
5. Refit rocker cover -
See
12.29.42.
6.
With
gears in neutral, handbrake on, start engine and
check for leaks from rocker cover gasket.
(20) Check/report cylinder compression
See
12.25.01
(21)
Check/adjust
valve
rocker clearances
See
12.29.48
Triumph
TR6
Manual.
Part
N~).
545277
Issue
J
MAINTENANCE
2
10.00.11
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