Cessna 150 Series - INDUCTION AIR SYSTEM; DESCRIPTION; REMOVAL AND INSTALLATION; IGNITION SYSTEM

NOTE
b. Remove
intake pipes
by disconnecting
hose
and
removing
nuts and
washers
attaching
pipes to cyl-
After
each
adjustment
to
the idle
mixture,
inders.
run engine up to approximately 2000 RPM
c. Installation of the system
is the reverse of the
to clear engine
of.excess fuel to obtain
a preceding
steps. Use new
gaskets at installation.
correct idle speed.
11-46.
IGNITION
SYSTEM.
11-43.
INDUCTION
AIR SYSTEM.
11-47. DESCRIPTION.
Sealed, lightweight
Slick
11-44.
DESCRIPTION.
Ram air to the engine
enters magnetos are
used on the engine.
Both magnetos
the induction
airbox through an
opening in the forward
are equipped with
impulse couplings. The
magnetos
part of the lower engine cowling nose cap. The air is MUST NOT BE DISASSEMBLED. Internal timing is
filtered through a filter which is located at
the open- fixed and the breaker points are
not adjustable. Tim-
ing in the nose cap. From the induction airbox
the ing marks are provided on the
distributor gear and
filtered
air is directed to the inlet of the carburetor,
distributor block, visible through the air
vent holes,
mounted on the
lower side of the engine, and through for
timing to the engine. A timing hole is provided
the carburetor, where fuel is mixed with the air, to in the bottom of the magneto adjacent to the magneto
the intake manifold.
From the intake manifold, the flange.
A timing pin (or 0.093 inch 6-penny nail)
can
fuel-air mixture is distributed
to each cylinder by be inserted
through this timing hole into the mating
separate intake
pipes. The intake pipes are attached hole
in the magneto rotor shaft to lock the magneto
to the intake manifold with hose and clamps and to the approximately in the proper firing position. Slick
cylinder
with a two bolt flange which is sealed with
a lightweight ignition harness is used with
the light-
gasket. The induction
airbox contains a
valve, oper- weight
magnetos. For ignition
harness repair refer
ated by the
carburetor heat control
in the cabin, which
to the manufacturer's
Service Manual
permits
air from an
exhaust heated
source
to be se-
lected in the
event carburetor
icing or filter icing
WARNING
should
be encountered.
During all magneto
maintenance,
always
11-45. REMOVAL AND INSTALLATION. take proper precautions to make sure the
a. Remove airbox and carburetor as outlined
in engine can not fire or
start when the pro-
paragraph 11-41.
peller is moved.
NO.1
OUTLET
TIMING MARK
VIEW
LOOKING
VIEW A-A
FORWARD
MODEL
NO.
4001 SLICK
MAGNETO
Figure 11-6. No. 1 Magneto Outlet
11-18