Timing
Diagrams
Valve
Timing.
Assemble the intermediate wheel in the same manner shown on
page
57,
for your particular model.
Pinion
and
Camshaft Nuts. Replace the pinion nut (R.H.), followed by the
exhaust camshaft nut
(L.H.),
and finally the inlet camshaft nut (L.H.), which has the
eccentric drive peg for the oil pump. Ensure that these nuts are well secured.
Oil
Pump. Prime the pump with oil and
fit
to
the crankcase with a new joint
washer. Ensure that the washer
is
positioned correctly and not covering any
oilways.
Magneto. Assemble the magneto to the crankcase and secure with the three nuts.
Magneto Driving Gear. Fit the gear to the magneto shaft and loosely screw on
the nut.
Distributor. See Ignition Timing, page
60.
Pistons.
If replacing the old pistons, they must be fitted to
<heir appropriate
connecting rods. Lubricate the small end bushes and
fit
the pistons to the rods.
Carefully insert the gudgeon pins until they abut against the circlips already in the
piston boss. Now
fit
the two remaining circlips and ensure that they are in grooves. If
in doubt regardin;? the serviceability of the circlips, always
fit
new ones, the cost of
Fig.
20.
TIMING DIAGRAMS
See pages
618
for checking figures.
To Next Page
Loading...
Need help?
General
