Triumph TR6 PI Operation Manual page 84

ENGINE
CYLINDER HEAD NUTS
1. Remove the rocker cover 12.29.42.
2. Remove the rocker shaft 12.29.54.
3. To avoid distortion tighten the cylinder head nuts
progressively to 60 to 80 Ibf ft (8·3 to 11 ·1 kgf m) in
the following sequence: A, B, C, D, E, F, G, H, I, J,
K,L,M,N.
4. Refit the rocker shaft 12.29.54.
5. Refit the rocker cover 12.29.42.
- Tighten
ROCKER COVER
- Remove and refit
12.29.27
12.29.42
N
B
o
H
Removing
1. Remove the three nuts complete with plain and fibre
washers securing the rocker cover to the cylinder
head.
2. Disconnect the breather pipe from the rocker cover.
3.
Lift off the rocker cover.
4. Remove the gasket.
Refitting
5. Clean the cylinder head and rocker cover mating
faces.
6. Fit a new rocker cover gasket.
7. Fit the rocker cover and secure with the washers and
nuts, ensuring that the fibre washer is fitted first -
next to the rocker cover. Tighten the nuts to 1 to 2
Ibf ft (0·15 to 0·3 kgf m). To avoid distortion do not
over tighten.
8. Reconnect the breather pipe to the rocker cover.
12.29.27
12.29.42
Triumph TR6 Manual. Part No. 545277 Issue I