Specifications And Emission Information; Technical Information - Briggs & Stratton 440000 Intek Extended Life Series Operator's Manual

Specifications
We recommend that you contact an authorized Briggs
& Stratton Service Dealer for all maintenance and
service of the engine and engine parts. Use only
genuine Briggs & Stratton parts.
In the state of California, Model 400000 and 440000
engines are certified by the California Air Resources
Board to meet emissions standards for 250 hours. Such
certification does not grant the purchaser, owner or
operator of this engine any additional warranties with
respect to the performance or operational life of this
engine. This engine is warranted solely according to the
product and emissions warranties stated elsewhere in
this manual.
Tune-up Specifications
Armature air gap . . 0.008 − 0.012 in. (0.20 − 0.30 mm)
Spark plug gap . . . . . . . . . . . . . . . . .
Valve clearance with valve springs installed and piston 1/4
in. (3 mm) past top dead center (check when engine is
cold). See Repair Manual P/N 273521.
Intake . . . . . . . . . . . . 0.004 − 0.006 in. (0.10 − 0.15 mm)
Exhaust . . . . . . . . . . 0.004 − 0.006 in. (0.10 − 0.15 mm)
Model 400000
Bore . . . . . . . . . . . . . . . . . . . . . . . . . .
Stroke . . . . . . . . . . . . . . . . . . . . . . . . .
Displacement . . . . . . . . . . . . . . . . . . .
Model 440000
Bore . . . . . . . . . . . . . . . . . . . . . . . . . .
Stroke . . . . . . . . . . . . . . . . . . . . . . . . .
Displacement . . . . . . . . . . . . . . . . . .
Note: For practical operation, the horsepower loading
should not exceed 85% of rated horsepower.
Engine power will decrease 3-1/2% for each
1,000 feet (300 meters) above sea level and 1%
for each 10° F (5.6° C) above 77° F (25° C). It
will operate satisfactorily at an angle up to 15°.
Model, Type and Code Number
To get replacement parts or technical assistance in the
future write your engine Model, Type and Code number
along with the date of purchase here. These numbers
are located on your engine.
Model
Type
Code
Purchase Date
16

Technical Information

Engine Power Rating Information
The gross power rating for individual gas engine models is
labeled in accordance with SAE (Society of Automotive
Engineers) code J1940 (Small Engine Power & Torque Rating
Procedure), and rating performance has been obtained and
corrected in accordance with SAE J1995 (Revision 2002-05).
Torque values are derived at 3060 RPM; horsepower values
are derived at 3600 RPM. Actual gross engine power will be
lower and is affected by, among other things, ambient
operating conditions and engine-to-engine variability. Given
both the wide array of products on which engines are placed
and the variety of environmental issues applicable to operating
the equipment, the gas engine will not develop the rated gross
power when used in a given piece of power equipment (actual
"on-site" or net power). This difference is due to a variety of
factors including, but not limited to, accessories (air cleaner,
0.030 in. (0.76 mm)
exhaust, charging, cooling, carburetor, fuel pump, etc.),
application limitations, ambient operating conditions
(temperature, humidity, altitude), and engine-to-engine
variability. Due to manufacturing and capacity limitations,
Briggs & Stratton may substitute an engine of higher rated
power for this Series engine.
Emission Information
Engines that are certified to meet the California Air
Resources Board (CARB) Tier 2 Emission Standards
2.97 in. (75.44 mm)
must display information regarding the Emissions
2.89 in. (73.4 mm)
Durability Period and the Air Index. Briggs & Stratton
makes this information available to the consumer on
40.0 cu. in. (656cc)
our emission labels. The engine emission label will
indicate certification information.
The Emissions Durability Period describes the
3.12 in. (79.25 mm)
number of hours of actual running time for which the
2.89 in. (73.4 mm) engine is certified to be emissions compliant, assuming
proper maintenance in accordance with the Operating
44.2 cu. in. (725 cc)
& Maintenance Instructions. The following categories
are used:
Moderate:
Engine is certified to be emission compliant for 125
hours of actual engine running time.
Intermediate:
Engine is certified to be emission compliant for 250
hours of actual engine running time.
Extended:
Engine is certified to be emission compliant for 500
hours of actual engine running time. For example, a
typical walk-behind lawn mower is used 20 to 25 hours
per year. Therefore, the Emissions Durability Period
of an engine with an intermediate rating would equate
to 10 to 12 years.
Certain Briggs & Stratton engines will be certified to
meet the United States Environmental Protection
Agency (USEPA) Phase 2 emission standards. For
Phase 2 certified engines, the Emissions Compliance
Period referred to on the Emissions Compliance label
indicates the number of operating hours for which the
engine has been shown to meet Federal emission
requirements.
For engines less than 225 cc displacement:
Category C = 125 hours
Category B = 250 hours
Category A = 500 hours
For engines of 225 cc or more displacement:
Category C = 250 hours
Category B = 500 hours
Category A = 1000 hours