1
GENERAL INFORMATION
ENGINE IDENTIFICATION
Tecumseh has used two different methods of identifying
2 cycle engines. The first method was used until the
mid 1980's using the base model number with a type
number. The type number was used to identify variations
for the OEM's specific needs (Fig. 1)
INTERPRETATION OF MODEL NUMBER
The letter designations in a model number indicates
the basic type of engine.
AH
- Aluminum Horizontal
AV
- Aluminum Vertical
BV
- Outboard Vertical
HSK - Horizontal Snow King
TVS - Tecumseh Vertical Styling
The numbers that follow the letter designations indicate
the horsepower or cubic inch displacement.
Tecumseh engine model, specification, and D.O.M.
number are now located on a decal adhered to the
blower housing.
TVS600-661030M 7352
1975 YEAR
30th DAY
5th. MONTH
(MAY)
T-670
TECUMSEH
6874603
TYPE
SERIAL
NUMBER
FRONT SIDE
REVERSE SIDE
(BUILD DATE)
TYPE
SERIAL
NUMBER
YEAR 219th DAY
1976 or Aug. 6th
1401J
TECUMSEH
6219
TYPE
SERIAL
NUMBER
670-100
TECUMSEH
62290322
YEAR 229th DAY
1976 or Aug. 17th
5 30 75
FUEL REGULAR UNLEADED
FUEL/OIL MIX 32:1
HSK600-1688S
8023B
TVS600-
661030M
7352
The second method was put in place to standardize
2 cycle and 4 cycle engine identification. The type
number has now become the specification number,
which is preceded by the engine model as illustrated
in Figure 2 and 3.
Following the engine size are the engine specification
numbers which are used for identification when ordering
parts.
The final set of numbers are the date of manufacture
(D.O.M.).
Example: HSK600 1688S
HSK
- Horizontal Snow King
600
- 6 Cubic Inch displacement
1688S
- Specification number
8023B
- Serial number D.O.M. (date of manufacturing
previously serial number)
8
- First digit is the year of manufacturing
(1998)
023
- Indicates the calendar day of the year (23th
day or Jan. 23, 1998)
B
- Represents the line and shift on which
the engine was built at the factory
4
2
1
FUEL REGULAR UNLEADED
FUEL/OIL MIX 32:1
HSK600-1688S
8023B
3
Summary of Contents for AH520 -
Page 67: ...64...
