Triumph SPEED TWIN 1945 Workshop Instruction Manual page 58

Replacing Camwheels
Crankshaft Pinion. Fit the Woodruff key t o the engine shaft and assemble the
pinion (shoulder side t o the engine) t o the shaft. When the pinion
i s
correctly
positioned t o the key it must be fully located by tapping
it
onto the shaft with a
hollow punch. Do not fit the nut
a t
this stage.
Camwheels. To fit these, special tool
Z89, Fig. 18, must be employed. First
wsemble the keys t o the camshafts, then screw on the centre tool (8). Slide the
camwheel over the tool and engage the keyway onto the key. Screw onto the
camwheel thread the outer tool (C), and onto (8) the left hand nut. Screw down
the nut until
it
contacts the outer tool, then, t o prevent the camshaft turning when
the nut i s screwed down, hold the end of the rod (8) with a suitable tool. When
the camwheel is fully located remove the tool and then fit the opposite camwheel.
D o not attempt t o punch the camwheels onto the shafts, as the key will be brought
into contact with the shaft bushes and may cause considerable damage. If the
operator cannot avail himself of the special tool, the camshafts and camwheels can
be assembled before the t w o halves of the crankcase are fitted together. Fit the
camshafts t o the timing side crankshaft half and then support them, when the cam-
wheels can be aligned t o the keys and punched into position.
Fig. 18. R E P L A C I N G
THE
C A M W H E E L