O.S. Engines 55AX - Manual (Page 10)

18
INSTALLING THE GLOWPLUG
Install washer on glowplug
and insert carefully into
cylinder-head, making sure
that it is not cross-threaded
before tightening firmly.
Glow plug
Washer
NEEDLE-VALVE EXTENSION
The needle-valve supplied with this engine is
designed to incorporate an extension so that,
when the engine is enclosed within the
fuselage, the needle-valve may be adjusted
from the outside. For this purpose, Needle
Valve Extension Cable Set is supplied with the
engine. If a longer extension is reguired, cut a
commercially available rod to the required
length, bend one end to an L shape, insert it
into needle's center hole and secure it by
tightening the set-screw in the needle-valve
knob with 1.5mm Allen key.
Needle Valve Extension Cable Set
1.5mm Allen key.
Set Screw
INSTALLATION OF THE
STANDARD ACCESSORIES
19
The exhaust outlet of the silencer can be rotated
to any desired position in the following manner:
Loosen the locknut and assembly screw.
Set the exhaust outlet at the required posi-
tion by rotating the rear part of the silencer.
Re-tighten the assembly screw, followed by
the locknut.
INSTALLING SILENCER
Secure the silencer to the engine by means of
two retaining screws supplied after the engine is
securely mounted to a test bench or a model.
It is recommended to seal the fitting faces of
engine exhaust and silencer with silicone sealant.
Assembly screw
Cone baffle
Turn to requlred
position
Exhaust
outlet
Locknut
Exhaust pressure nipple
E-3020 Silencer
Model engines generate considerable heat.
Do not touch any part of your engine until
it has cooled. Contact with the muffler
(silencer), cylinder head or exhaust header
pipe, in particular, may result in a serious
burn. Keep your hands and face away from
exhaust gas or you will suffer a burn.
Reminder!
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