General Information; Engine Identification; Interpretation Of Engine Identification - Tecumseh V-twin Technician's Handbook

ENGINE IDENTIFICATION

Tecumseh engine model, specification, and date of
manufacture (D.O.M.) are located on decals attached to
the blower housing of the engine. The engine
identification decal also provides the applicable warranty
code, oil and fuel recommendations, EPA (Environmental
Protection Agency) and C.A.R.B. (California Air Resource
Board) Emission Compliance Information. (Illust. 1-1)
INTERPRETATION OF ENGINE
IDENTIFICATION
The letter designations (TVT) in a model number
indicate the basic type of engine.
The number designations following the letters (691)
indicate the basic engine model displacement in CC's
(cubic centimeters). (Illust. 1-2)
ENGINE
MODEL
NUMBER
CHAPTER 1. GENERAL INFORMATION
The group of numbers following the model number is
the specification number. The last three numbers
indicate a variation to the basic engine specification.
(Illust. 1-3)
1-1
The letter in parenthesis on the engine information decal
is the warranty code identification number. This letter
designates the length of time the engine is under
warranty. A cross-reference may be found in the service
warranty policy of the master repair manual or the engine
operator's manual. (Illust. 1-4)
1-2
SPECIFICATION
NUMBER
1-3
WARRANTY
IDENTIFICATION
NUMBER
1-4
1-1