Associated Electrics Nitro TC3 RTR, Быстрый старт, Страница: 3 / 4

High Speed Mixture: High Speed Mixture:
High Speed Mixture: High Speed Mixture:
High Speed Mixture:
2 1/2 turns out
2 1/2 turns out 2 1/2 turns out 2 1/2 turns out 2 1/2 turns out
FACTORY CARBURETOR SETTINGS
Leaner
(Less Fuel) (Less Fuel)
(Less Fuel) (Less Fuel) (Less Fuel)
Low Speed Mixture: Low Speed Mixture:
Low Speed Mixture: Low Speed Mixture: Low Speed Mixture:
1/16” of screw showing (1.5 mm)
1/16” of screw showing (1.5 mm)
1/16” of screw showing (1.5 mm) 1/16” of screw showing (1.5 mm)
1/16” of screw showing (1.5 mm)
1/16”
Idle Speed:1/32” to 1/16” opening Idle Speed:1/32” to 1/16” opening Idle Speed:1/32” to 1/16” opening Idle Speed:1/32” to 1/16” opening Idle Speed:1/32” to 1/16” opening
(.8 to 1.5 mm)
(.8 to 1.5 mm) (.8 to 1.5 mm) (.8 to 1.5 mm) (.8 to 1.5 mm)
1/16”
1/32”
1/16”
1/32”
T O T O T O T O T O
The key to breaking in your engine is patience. During the break-in period, your engine may appear to malfunction with problems
such as stalling, inconsistent performance, and fouling out the glow plug. Don’t give up... just keep running, applying the throttle on
and off as smoothly as you can. Here are some points to remember during break-in:
1.
1.
1. 1. 1. Expect to replace the glow plug during the break-in period, and definitely when the engine is fully broken in.
2.
2.
2. 2. 2. Run the car without the body for extra engine cooling during the break-in period. Then cut out body’s front windshield and side
window after the break-in period.
3.
3.
3. 3. 3. The idle speed should be set as fast as possible without causing the car to move. If necessary, adjust the idle speed screw as
shown in the photo below.
4.
4.
4. 4. 4. The standard high speed mixture and low-speed mixture settings of the carburetor vary slightly with each engine. The standard
settings are shown below. Your engine should start and run somewhat rich with these settings (rich is good for break-in). Blue-white
smoke coming from the exhaust is a good sign that the settings are rich. If there is little or no smoke, the settings are probably not
rich enough. In this case, turn the high-speed mixture screw counter-clockwise 1/8 of a turn (see photo).
5.
5.
5. 5. 5. As the engine reaches normal operating temperature, it will speed up and performance will increase. This occurs because the fuel
mixture is becoming more lean
with the increased engine tempera-
ture. You might need to richen the
fuel mixture 1/16 to 1/8 of a turn
so the engine continues to run rich
as described above.
6.
6.
6. 6. 6. Constantly test the engine for
overheating.Use either an acces-
sory head temperature gauge
(these are expensive, but worth
every penny) or as an alternative,
use the water method: place a
drop of water on top of the cylinder
head. If it sizzles away immedi-
ately, stop your engine and let it
cool down. If it takes about 3 to 5 seconds for the water to boil away, the engine is within normal operating temperature. When using
a temperature gauge, the temperature should always be between 220 and 280 degrees.
7.
7.
7. 7.
7. Run your engine this way (rich) until you’re just about out of fuel, bring your car to a stop and shut off the engine, allowing it to
cool for 8 to 10 minutes before starting it up again. Correct break-in will take about four tanks of fuel.
Correct break-in will take about four tanks of fuel.
Correct break-in will take about four tanks of fuel. Correct break-in will take about four tanks of fuel.
Correct break-in will take about four tanks of fuel.
Watch for signs of overheating. These will include: Watch for signs of overheating. These will include: Watch for signs of overheating. These will include: Watch for signs of overheating. These will include: Watch for signs of overheating. These will include:
• Steam or smoke coming from the engine surfaces
• Engine hesitates during hard acceleration, as if it’s running out
of fuel
• Popping or clattering sound when slowing down
• Idle speed will surge or possibly diminish to the point of
stalling.
• Engine stops running and glow plug wire is burned, deformed,
or missing.
If you encounter any of these symptoms, you may need to
If you encounter any of these symptoms, you may need to
If you encounter any of these symptoms, you may need to If you encounter any of these symptoms, you may need to If you encounter any of these symptoms, you may need to
richen the high-speed mixture 1/8 to 1/4 counterclockwise or
richen the high-speed mixture 1/8 to 1/4 counterclockwise or richen the high-speed mixture 1/8 to 1/4 counterclockwise or richen the high-speed mixture 1/8 to 1/4 counterclockwise or richen the high-speed mixture 1/8 to 1/4 counterclockwise or
until symptoms stop. (see photo above).
until symptoms stop. (see photo above). until symptoms stop. (see photo above). until symptoms stop. (see photo above). until symptoms stop. (see photo above).
Engine may start running more rich as it breaks in. Engine may start running more rich as it breaks in. Engine may start running more rich as it breaks in. Engine may start running more rich as it breaks in. Engine may start running more rich as it breaks in.
Signs of running too rich will include:
Signs of running too rich will include: Signs of running too rich will include: Signs of running too rich will include: Signs of running too rich will include:
• More and more smoke may be seen coming from the exhaust
outlet
• Engine may have a difficult time idling.
• The Engine top speed may decrease, and engine pitch will
sound lower
• Engine continually fouls glow-plugs
If you encounter any of these symptoms, you may need to lean
If you encounter any of these symptoms, you may need to lean
If you encounter any of these symptoms, you may need to lean If you encounter any of these symptoms, you may need to lean
If you encounter any of these symptoms, you may need to lean
the high speed mixture setting by turning it 1/8 clockwise (see
the high speed mixture setting by turning it 1/8 clockwise (see
the high speed mixture setting by turning it 1/8 clockwise (see the high speed mixture setting by turning it 1/8 clockwise (see
the high speed mixture setting by turning it 1/8 clockwise (see
photo above).
photo above).
photo above). photo above). photo above).
What to look for during tanks 2-4 as the engine breaks in:
What to look for when running your first tank of fuel
Caution: Caution: Caution: Caution: Caution: if the engine stalls while you are driving due to an overheating condition, severe engine damage may have already oc-
curred. Overheating is caused by the following errors:
• Fuel mixture is not rich enough
• Air leak around carburetor
• No air filter
• Loss of muffler pressure (line falls off, etc.)
Y YY Y Your engine will be shor our engine will be shor our engine will be shor our engine will be shor our engine will be short-lived if any of these conditions ar t-lived if any of these conditions ar t-lived if any of these conditions ar t-lived if any of these conditions ar t-lived if any of these conditions are allowed to occur for any length of time. e allowed to occur for any length of time. e allowed to occur for any length of time. e allowed to occur for any length of time. e allowed to occur for any length of time.
Larger
Opening
(Higher Idle (Higher Idle (Higher Idle (Higher Idle (Higher Idle
Speed) Speed)
Speed) Speed)
Speed)
Smaller
Opening
(Lower idle (Lower idle (Lower idle (Lower idle (Lower idle
Speed) Speed)
Speed) Speed)
Speed)
• Excessive nitro content in the fuel
• Incorrect oil content in the fuel or poor quality of fuel
• Excessive loads on the engine (bound drive train or brakes engaged
when throttle is on)
Richer
(More Fuel) (More Fuel) (More Fuel) (More Fuel) (More Fuel)
Richer
(More Fuel) (More Fuel) (More Fuel) (More Fuel) (More Fuel)
Engine Break-In Tips
Engine Break-In Tips