Royal Enfield 350 BULLET 1949, Workshop Maintenance Manual

Page: 63 / 102

ROYAL ENFIELD WORKSHOP MANUAL
The leads to the lighting switch and ammeter
should be disconnected from the battery, regulator,
tail lamp, etc. at their lower ends or by means of the
plug and socket connectors when these are provided.
The switch and ammeter are push fits into the rubber
bushes (LU/365408) in the fork head.
Disconnect the speedometer drive from the
speedometer head and unscrew the steering damper
knob and rod (if fitted) after removal of the split pin
through the lower end of the rod. Undo the steering
damper anchor plate pin so as to disconnect the
damper from the frame of the machine.
Remove the two plug screws (38968) and loosen
the steering head clip bolt and the two fork crown
clamp bolts.
Now unscrew the fork main tubes from the fork
head and the steering stem locknut from the top of the
steering stem, turning each tube and the nut a turn or
two at a time. When the nut has been removed from
the steering stem and the main tubes have been
completely unscrewed from the fork head the
complete fork and wheel with steering stem can be
lifted out of the head lug of the frame.
8. Lubrication
The lubrication of the fork bearings is effected by
the oil which forms the hydraulic damping medium.
All that is necessary is to keep sufficient oil in the
fork to ensure that the top end of the bottom spring
stud is never uncovered even in the full rebound
position. The level of oil in the fork can be gauged
by removing the top plug screw and inserting a long
rod about 3/8 in. diameter. If slightly tilted this will
ledge against the nut at the upper end of the bottom
spring stud and indicate the level of oil above the
stud. If the fork is empty to start with, the quantity
required is approximately 7.1/2 fluid ounces in each
leg. Recommended grades of oil are Castrolite,
Mobiloil Arctic, Essolube 20, B.P. Energol S.A.E. 20
and Shell X-100 20/20W.
9. Air Vents
The earlier forks of this type were provided with
holes at the upper end of each main tube
communicating with small vent holes in the Casquette
head. Experience has shown that on rough roads oil
may escape through these air vents which in
consequence are now omitted. Escape of oil from the
earlier forks can be largely eliminated by fitting
specially long plug screws, which are available. The
Part Number is 40118. If these are fitted and the final
vent hole is stopped up with a wooden plug, leakage
at this point is impossible. Fitting the special plug
screws alone is sufficient in most instances.
Section J1 Page 4
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