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Standard

Flywheels for Two-Plate Spring-Loaded Clutches
2012-05-31
CURRENT
J619_201205
This SAE Recommended Practice defines flywheel configuration to promote standardization of flywheels for dry spring-loaded clutches. Clutches to fit flywheels with configurations per this document may not be commercially available. Availability should be ascertained prior to flywheel design Figure 1 and Table 1A.
Standard

Housing Internal Dimensions for Single- and Two-Plate Spring-Loaded Clutches
2012-05-31
CURRENT
J373_201205
This SAE Recommended Practice defines the minimum internal dimensions for clutch housings to provide adequate clearance for single- and two-plate spring-loaded clutches. (See Figure 1.) Consult SAE J617 for housing flange dimensions. Consult SAE J618 and J619 for spring-loaded clutch flywheel dimensions F and G and other dimensional data. Table 1 provides housing minimum internal dimensions for single- and two-plate spring-loaded clutches.
Standard

INDUSTRIAL POWER TAKE-OFFS WITH DRIVING RING-TYPE OVERCENTER CLUTCHES
1995-03-08
HISTORICAL
J621_199503
This SAE Standard defines installation dimensions of industrial power take-offs with driving ring-type overcenter clutches. Table 1 and Figure 1 give dimensions for power take-offs. For dimensions and tolerances of power take-off flanges and flywheels, see SAE J617 and J620, respectively.
Standard

Industrial Power Take-Offs With Driving Ring-Type Overcenter Clutches
2012-10-23
CURRENT
J621_201210
This SAE Standard defines installation dimensions of industrial power take-offs with driving ring-type overcenter clutches. Table 1 and Figure 1 give dimensions for power take-offs. For dimensions and tolerances of power take-off flanges and flywheels, see SAE J617 and J620, respectively.
Standard

MEDIUM- AND HEAVY-DUTY TRUCK CONVERTER/MUFFLER CONFIGURATION
1993-02-19
HISTORICAL
J1642_199302
This SAE Draft Technical Report is intended to document the technical consensus of the current design state of converter/mufflers for heavy-duty emission classification diesel vehicle applications. This will maximize standardization and promote interchangeability of parts from different manufacturers.
Standard

Manual Transmission and Transaxle Efficiency and Parasitic Loss Measurement
1999-08-30
HISTORICAL
J2453_199908
Because of the intense focus on CAFE and fuel emission standards, optimization of the automobile drivetrain is imperative. In light of this, component efficiencies have become an important factor in the drivetrain decision-making process. It has therefore become necessary to develop a universal standard to judge transmission efficiency. This SAE Recommended Practice specifies the dynamometer test procedure which maps a manual transmission’s efficiency. The document is separated into two parts. The first compares input and output torque throughout a specified input speed range in order to determine “in-gear” transmission efficiency. The second procedure measures parasitic losses experienced while in neutral at nominal idling speeds and also churning losses while in gear. The application of this document is intended for passenger car and light truck. All references to transmissions throughout this document include transaxles.
Standard

Manual Transmission and Transaxle Efficiency and Parasitic Loss Measurement
2011-09-02
CURRENT
J2453_201109
Because of the intense focus on CAFE and fuel emission standards, optimization of the automobile drivetrain is imperative. In light of this, component efficiencies have become an important factor in the drivetrain decision-making process. It has therefore become necessary to develop a universal standard to judge transmission efficiency. This SAE Recommended Practice specifies the dynamometer test procedure which maps a manual transmission’s efficiency. The document is separated into two parts. The first compares input and output torque throughout a specified input speed range in order to determine “in-gear” transmission efficiency. The second procedure measures parasitic losses experienced while in neutral at nominal idling speeds and also churning losses while in gear. The application of this document is intended for passenger car and light truck. All references to transmissions throughout this document include transaxles.
Standard

Measurement of Fuel Evaporative Emissions from Gasoline Powered Passenger Carsand Light Trucks Using the Enclosure Technique
2000-12-07
CURRENT
J171_200012
This SAE Recommended Practice describes a procedure for measuring evaporative emissions from fuel systems of passenger cars and light trucks. Emissions are measured during a sequence of laboratory tests that simulate typical vehicle usage in a metropolitan area during summer months: a. A 1 h soak representing one diurnal cycle in which temperature of fuel in the vehicle's tank is raised from 15.6 to 28.9 °C (60 to 84 °F) b. A 17.9 km (11.1 mile) drive on a chassis dynamometer c. A 1 h hot soak immediately following the 17.9 km (11.1 mile) drive The method described in this document, commonly known as the SHED (Sealed Housing for Evaporative Determination) technique, employs an enclosure in which the vehicle is placed during the diurnal and hot soak phases of the test.
Standard

Medium- and Heavy-Duty Truck Converter/Muffler Configuration
2001-11-15
CURRENT
J1642_200111
This SAE Draft Technical Report is intended to document the technical consensus of the current design state of converter/mufflers for heavy-duty emission classification diesel vehicle applications. This will maximize standardization and promote interchangeability of parts from different manufacturers. The purpose of this SAE Draft Technical Report is to give the technical community the opportunity to review, comment on, and use the Draft Technical Report prior to its final approval by SAE.
Standard

Multiposition Small Engine Exhaust System Fire Ignition Suppression
2020-10-06
CURRENT
J335_202010
This SAE Recommended Practice establishes equipment and test procedures for determining the performance of spark arrester exhaust systems of multiposition small engines (<19 kW) used in portable applications, including hand-held, hand-guided, and backpack mounted devices. It is not applicable to spark arresters used in vehicles or stationary equipment.
Standard

Multiposition Small Engine Exhaust System Fire Ignition Suppression
2012-10-23
HISTORICAL
J335_201210
This SAE Recommended Practice establishes equipment and test procedures for determining the performance of spark arrester exhaust systems of multiposition small engines (<19 kW) used in portable applications, including hand-held, hand-guided, and backpack mounted devices. It is not applicable to spark arresters used in vehicles or stationary equipment.
Standard

PASSENGER CAR AND LIGHT TRUCK AXLES
1991-01-09
HISTORICAL
J2200_199101
This SAE Recommended Practice is intended to outline basic nomenclature for axle designs in common use for automotive drives. Over a period of years, there have been many different designs; however, for the purpose of this report, only the most common designs have been selected and only their general construction is illustrated to show the nomenclature of the various parts.
Standard

PROCEDURE FOR MEASURING BORE AND FACE RUNOUT OF FLYWHEELS, FLYWHEEL HOUSINGS AND FLYWHEEL HOUSING ADAPTERS
1988-11-01
HISTORICAL
J1033_198811
This recommended practice applies to any internal combustion engine which can utilize SAE No. 6 thru SAE No. 00 size flywheel housing. It provides instructions for correcting flywheel housing bore runout readings which are influenced by crankshaft bearing clearance. Limits for bore and face runout are specified in the various SAE Standards and Recommended Practices covering flywheels and flywheel housings.
Standard

PROCEDURE FOR MEASURING BORE AND FACE RUNOUT OF FLYWHEELS, FLYWHEEL HOUSINGS, AND FLYWHEEL HOUSING ADAPTERS
1993-04-01
HISTORICAL
J1033_199304
This SAE Recommended Practice applies to any internal combustion engine which can utilize SAE No. 6 thru SAE No. 00 size flywheel housing. It provides instructions for correcting flywheel housing bore runout readings which are influenced by crankshaft bearing clearance. Limits for bore and face runout are specified in the various SAE Standards and Recommended Practices covering flywheels and flywheel housings.
Standard

Passenger Car and Light Truck Axles
2001-11-01
HISTORICAL
J2200_200111
This SAE Recommended Practice is intended to outline basic nomenclature for axle designs in common use for automotive drives. Over a period of years, there have been many different designs; however, for the purpose of this report, only the most common designs have been selected and only their general construction is illustrated to show the nomenclature of the various parts.
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