S T A R T I N G T H E E N G I N E
Break -In
The first run
on
any engine, whether
2-cycle
or
is critical
to
the
future of the engine itself. During this
time, metal mating parts (piston and
cylinder, ball bearings, etc.) wear in.
Care must be taken that the engine is
clean and free of any dust
or
grit that
may have accumulated while building
the model.
There are two accepted methods for
breaking in a new engine: test stand
mounted and run or aircraft mounted
and run. Either method
is
acceptable;
however, mounting the engine
to
a test
stand allows the engine
to
be observed
throughout its operation, as well as
elevating
it
above
ground and away
from harmful dust and dirt.
Note: Because your engine may have
been sitting for
an
extended period of
time prior to running
it,
a few drops
of
light oil applied through the crankcase
breather nipple
on the exploded
view) and down the push-rod tubes
(40) will ensure proper lubrication
for
the first run.
Regardless
of
the mounting method
chosen for break-in,
the
following
procedures are applicable:
1.
Use of
a
fuel as described in
the
“Support Equipment” section on
page
3
of this manual for “break-in”
purposes is perfectly acceptable.
2.
Use the proper glow plugs. Your
engine includes the Saito SS SAIP
4 0 0 S
or
(HAN3011)
super glow plugs,
which are standard replacement glow
plugs for these engines.
3.
To select the correct propeller, refer
to
the “Propeller Selection” chart on
page
of
this manual. Remember to
balance the propeller prior
to
use
4a.
For all
.30
to
.91
engines, ensure
that the high speed needle valve (85) is
opened (turned counter-clockwise) two
and
turns out. This guarantees a
very rich setting.
4b.
For all
.OO
to 1
engines, ensure
that the high speed needle valve
(85)
is
opened (turned counter-clockwise)
5
turns out. This guarantees a very rich
setting.
Do
not
adiust the
low-speed
needle
valve
(89)at
this time.
The
low-speed
needle valve
is
preadjusted
at the
factory for initial break-in. Specific
instructions for adjusting the idle
of
engines
(FA-30S(H))
using an
“air-bleed’ type carburetor will be
described in the section “Carburetor
Adjustments
for Air
Bleed
Carburetors”
on
page
7.
5.
The use of a tachometer is highly
recommended since the adjustment
of
a 4-cycle engine, while similar
to
that
of a 2-cycle engine, is more difficult to
“set by ear,” making it much easier to
damage the engine by “over-leaning.”
Summary of Contents for FA-30S Golden Knight
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