Tecumseh LH318XA User Manual 2
TecumsehPower
Operator’s Manual
LH318XA
LH358EA/LH358XA
Four-Cycle Engine • L-Head • Horizontal Crankshaft • Air-Cooled
Table of Contents
Important Notice! Safety Definitions ................................................ ii
I. General Safety Precautions ........................................................... 1
II. How to Get Service ........................................................................ 3
III. Oil and Fuel Specifications ............................................................. 3
IV. Before Starting Your Engine ........................................................... 4
V. Starting Your Engine ...................................................................... 8
VI. Stopping Your Engine and Short-Term Storage ........................... 12
VII. Maintenance ................................................................................ 12
VIII. Transporting Your Engine ............................................................. 15
IX. Storing your Engine ...................................................................... 15
X. Preventing Forest, Brush and Grass Fires ................................... 17
XI. Maintenance Intervals................................................................... 18
California & US EPA Emission Control Warranty Statement ........ 20
Emission Control System Warranty ............................................. 21
XII. Warranty Information ..................................................................... 22
Visit our web site at www.TecumsehPower.com
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Maintenance Tips
Parts Look-Up System
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181-630-14
(English) 1/01/08
IMPORTANT NOTICE!
T
Safety Definitions
Statements in this manual preceded by the following words
and graphics are of special significance:
!
WARNING
Or
WARNING
WARNING indicates a potentially hazardous situation
which if not avoided, could result in death or serious injury.
CAUTION
Indicates a potential situation which if not avoided, could
result in equipment or property damage.
NOTE
Refers to important information and is placed in italic type.
Tecumseh Contact Information
For engine adjustments, repairs or warranty service not
covered in this manual, contact your nearest Authorized
Tecumseh Servicing Dealer. Find them on our website at
www.TecumsehPower.com or call Tecumseh Power
Company at 1-800-558-5402.
It is recommended that you take special notice of all items
discussed on the next two pages and wear the appropriate
safety equipment.
Before operating this engine it is your responsibility to read
this Operator’s Manual. Follow these basic rules for your
personal safety:
• Keep this manual handy at all times for future
reference.
• Read it carefully and familiarize yourself with
operating, maintenance, components and safety
instructions.
Notice Regarding Emissions
NOTE
Engines which are certified to comply with California and
U.S. EPA emission regulations for SORE (Small Off Road
Equipment), are certified to operate on regular unleaded
gasoline, and may include the following emission control
systems: (EM) Engine Modification and (TWC) Three-Way
Catalyst (if so equipped).
he trademarks TECUMSEH® and the DESIGN (Native American Head logo) are registered trademarks of
Tecumseh Products Company and are used by Tecumseh Power Company under license from Tecumseh
Products Company. Tecumseh Power Company is no longer owned by Tecumseh Products Company nor is
it associated or affiliated in any way with Tecumseh Products Company.
©Copyright 2006
Tecumseh Power Company
All Rights Reserved
Page ii Four-Cycle Engine • L-Head • Horizontal Crankshaft • Air-Cooled 181-630-14
I. General Safety Precautions
• NEVER fill fuel tank indoors. Fill fuel tank outdoors
in a well-ventilated area.
!
WARNING
Read equipment manufacturer’s manual and this
material thoroughly before using this engine. Failure to
do so can result in serious injury or death. Call Tecumseh
Power Company at 1-800-558-5402 or visit
www.TecumsehPower.com if you have any questions.
A. Avoid Carbon Monoxide Poisoning
All engine exhaust contains
carbon monoxide, a deadly
gas. Breathing carbon
monoxide can cause
headaches, dizziness,
drowsiness, nausea, confusion
and eventually death.
Carbon monoxide is a colorless, odorless, tasteless gas
which may be present even if you do not see or smell any
engine exhaust. Deadly levels of carbon monoxide can
collect rapidly and you can quickly be overcome and
unable to save yourself. Also, deadly levels of carbon
monoxide can linger for hours or days in enclosed or
poorly-ventilated areas. If you experience any symptoms of
carbon monoxide poisoning, leave the area immediately,
get fresh air, and SEEK MEDICAL TREATMENT.
To prevent serious injury or death from carbon monoxide:
• NEVER run engine indoors. Even if you try to
ventilate engine exhaust with fans or open windows
and doors, carbon monoxide can rapidly reach
dangerous levels.
• NEVER run engine in poorly-ventilated or partially
enclosed areas such as barns, garages,
basements, carports, under dwellings, or in pits.
• NEVER run engine outdoors where engine exhaust
can be drawn into a building through openings such
as windows and doors.
B. Avoid Gasoline Fires
Gasoline (fuel) vapors are highly flammable
and can explode. Fuel vapors can spread
and be ignited by a spark or flame many feet
away from engine. To prevent injury or death
from fuel fires, follow these instructions:
• NEVER store engine with fuel in fuel
tank inside a building with potential
sources of ignition such as hot water and space
heaters, clothes dryers, electric motors, etc.
• NEVER remove fuel cap or add fuel when engine is
running.
• NEVER start or operate the engine with fuel fill cap
removed.
• DO NOT smoke while refueling tank.
• Use only an approved red GASOLINE container to
store and dispense fuel. Tecumseh recommends
purchasing gasoline in containers with a capacity of
2.5 gallons or less. Small containers are easier to
handle and help eliminate spillage during refueling.
• DO NOT pour fuel from engine or siphon fuel by
mouth. To empty fuel tank see "I. Draining Fuel"
instructions on page 16.
C. Adult Supervision of Operation, Refueling
and Maintenance
The manufacturer of the application may provide
information about who is allowed to use this engine (see
equipment manufacturer’s manual). Not everyone who is
allowed to use this engine is capable of safely and
responsibly operating, maintaining and/or fueling it.
Tecumseh recommends the following:
• An adult should fuel this engine. NEVER allow
children to refuel this engine. See "G. Filling Fuel
Tank" instructions on page 6.
• An adult should perform maintenance on this
engine. See "VII. Maintenance" instructions on
page 12. Only allow children to perform
maintenance if an adult has determined they are
experienced and capable of such operation.
• An adult should start the engine. See "G. Avoid
Accidental Starts" instructions on page 2. Only allow
children to start the engine if an adult has
determined they are experienced and capable of
such operation.
To avoid unsupervised operation of the engine, especially
by children, NEVER leave it unattended when it is running.
D. Stay Away from Rotating Parts
NEVER operate the engine with an unguarded engine
shaft. See Figure 1.
The equipment manufacturer may attach
a sprocket and chain or pulley and belt to
the engine shaft. If these parts are not
properly guarded, or if you are not sure
whether they are properly guarded, DO
NOT use your engine; contact the
equipment manufacturer. Hands, feet,
hair, jewelry, clothing, etc. can become
entangled in rotating parts, leading to
serious injury or death. To avoid serious
injury or death, be sure the flywheel
guard is in place. See Figure 1. See
Figure 2.
• Allow engine to cool before refueling.
181-630-14 Four-Cycle Engine • L-Head • Horizontal Crankshaft • Air-Cooled Page 1
E. Do Not Modify Engine
To avoid serious injury or death, DO NOT modify engine in
any way. Tampering with the governor setting can lead to a
runaway engine and cause it to operate at unsafe speeds.
NEVER tamper with factory setting of engine governor.
!
WARNING
Use of this engine on fun-carts, go-karts or mini-bikes
could result in serious injury or death. Tecumseh
manufactures the Power Sport line of engines for use in
such applications. Consult your local Authorized
Tecumseh Servicing Dealer, call 1-800-558-5402, or go
to www.TecumsehPower.com for additional information.
F. Avoid Burns and Fire from Hot Surfaces
The muffler and other engine parts become extremely hot
during operation and remain hot after the engine has
stopped.
• To avoid severe burns on contact,
NEVER operate the engine
without the muffler guard in place,
see Figure 2 and avoid hot areas
of the engine.
Figure 1. DO NOT Use Without Engine Shaft Guard
1
2
• To reduce the risk of fire keep all
materials that can burn, including
grass and leaves, away from muffler and rest of
engine. DO NOT operate, idle or park the engine
application in long dry grass or other dry ground
cover.
G. Avoid Accidental Starts
To prevent accidental starting when working on equipment
always:
• Disconnect spark plug wire and keep it away from
spark plug. See Figure 3.
• Keep the disconnected spark plug wire
securely away from metal parts where arcing
could occur.
• Attach the spark plug wire to the grounding
post, if provided. See Figure 4.
• Disconnect battery at negative terminal first, if
engine is equipped with an electric starter.
• Turn off all engine switches.
• Remove ignition key, if provided.
1. Muffler Guard
2. Flywheel Guard
Figure 2. Typical Engine Guard Locations
Figure 3. Disconnecting/Connecting Spark Plug
H. Use Hearing Protection
Engine noise may cause hearing damage. Always wear
hearing protection when operating an engine.
Figure 4. Typical Spark Plug Connection
Page 2 Four-Cycle Engine • L-Head • Horizontal Crankshaft • Air-Cooled 181-630-14
II. How to Get Service
3TO11HP
4 -CYCLE
L-HEAD
ENGINES
TECHNICIAN'S HANDBOOK
32 F
O
For engine adjustments, repairs or warranty service not
covered in this manual, contact your nearest Authorized
Tecumseh Servicing Dealer. Find them on our website at
www.TecumsehPower.com or call Tecumseh Power
Company at 1-800-558-5402.
Visit our web site at www.TecumsehPower.com
Register YourTecumseh Engine
Maintenance Tips
Parts Look-Up System
Great Tecumseh Apparel
Nearest Authorized Tecumseh Servicing Dealer Location
A. Engine Identification Decal
A sample engine identification decal (See Figure 5.)
indicates the engine’s model number, specification of
engine and the date of manufacture (D.O.M.). Please look
at the decal on your engine and fill in this information in the
spaces provided for future reference.
The engine identification decal also includes engine life
specifications for the emissions-related useful life period of
your engine. This period relates to the emission compliance
life as certified by EPA and/or CARB. To find the life period
specification for your engine, please look on your engine’s
decal and find the letter enclosed by quotation marks
between the words MODERATE and LIFE PERIOD. Match
one of the following letters with the letter printed on your
decal. For example, LH models are designated as “C” 250
hours, “B” 500 hours, and “A” 1000 hours.
LOG ON!
TECUMSEH POWER COMPANY
THIS ENGINE MEETS 1995-2005 CALIF & US EPA
PHI APPLICABLE EMISSION REGULATIONSFOR SI
SORE ENGINES
LV195EA
361540D
4TPXS.1951BB 195
ENGINE
MODEL:
SPEC:
D.O.M.:
Figure 5. Engine Identification Label
2083
EM
04015AA0001
B. Tecumseh Technician’s Handbooks
If you have a general understanding of internal combustion
engines and wish to repair and service your engine and/or
engine emission control systems yourself, a Technician’s
Handbook is available from your Authorized Tecumseh
Servicing Dealer. See Figure 6. This handbook covers
repairs and adjustments not covered within this Operator’s
Manual, and it is intended for individuals who have had
adequate training, experience and who practice proper tool
usage. Service procedures should be clearly understood
and practiced when servicing Tecumseh Engines. Order as
part no. 692509 for LH Models.
Tecumseh manufactures and is responsible only for the
engine used on this power equipment. If repair or service is
needed for anything other than the engine, contact the
service source recommended by the equipment
manufacturer.
III. Oil and Fuel Specifications
A. Oil
To operate engine you need to use a clean, high quality,
detergent oil. For recommended engine oil, See Table 1.
NOTES
Be sure original container is marked A.P.I. Service “SL/SJ”.
Using multigrade oil above 32°F (0°C) will increase oil
consumption. SAE10W40 is not recommended.
Tecumseh special-formulated oils are available at your
Authorized Tecumseh Servicing Dealer.
The oil sump capacity is 26 ounces or 1-5/8 U.S. Pints (.76
liters).
181-630-14 Four-Cycle Engine • L-Head • Horizontal Crankshaft • Air-Cooled Page 3
O
-30 C
Figure 6. Technician’s Handbook
Table 1. Recommended Oil Usage
Tecumseh Recommended Oil Usage
Multi Grade
Tecumseh Part No.
730226A or SAE 5W30 or SAE 10
Synthetic
Tecumseh Part No.
-20 F
O
0 F
O
-20 C
730263 or SAE 0W30
O
-10 C
O
20 F
O
O
32 FO 32 F
0 C
40 F
O
Tecumseh Part No.
730225A or SAE 30
O
60 F
O
10 C
Straight Grade
O
80 F
O
20 C
30 C
O
100 F
O
40 C
O
O
B. Fuel
Use unleaded regular, unleaded premium or reformulated
automotive fuel only. You may use gasoline containing the
following components identified in Table 2.
• DO NOT use leaded fuel.
• Fuel must be fresh and clean. NEVER use fuel left
over from last season or stored for long periods.
• NEVER mix oil with fuel.
• DO NOT use fuel containing Methanol (Wood
Alcohol).
Table 2. Recommended Fuel
Fuel Component Percentage
Ethanol 10%
Grain Alcohol (“Gasohol”) 10%
MTBE (Methyl Tertiary Butyl Ether) 15%
ETBE (Ethyl Tertiary Butyl Ether) 15%
CAUTION
Tecumseh engines. Alternative fuels with high alcohol
content can cause hard starting, poor engine performance,
and may cause internal engine damage.
Damage and/or performance problems that will occur from
use of fuels, other than those listed in the Operator’s
Manuals will not be considered warranty.
The use of alternative fuels such as E85
or E20 are not recommended for use in
NOTE
IV. Before Starting Your Engine
A. Checking Oil Level
To avoid engine damage, it is important to:
• Check oil level before each use and every 5
operating hours when engine is warm. Check oil
level more frequently during engine break-in.
• Keep oil level between “FULL” and “ADD” marks on
dipstick. See Figure 7.
• Be sure oil fill cap is tightened securely.
Fill between “FULL”
FULL
and “ADD” Marks
OK
ADD
Figure 7. Engine Oil Level
NOTES
Do not overfill oil filler. Doing so may result in oil carry-over
to the air cleaner and equipment malfunction or damage.
Do not allow oil level to fall below the “ADD” mark on
dipstick. Doing so may result in equipment malfunction or
damage.
Contact your Authorized Tecumseh Servicing Dealer for
Tecumseh Oil.
Page 4 Four-Cycle Engine • L-Head • Horizontal Crankshaft • Air-Cooled 181-630-14
B. Filling Oil Sump
1. Be sure engine is upright and level.
2. Unscrew oil fill cap from oil filler tube and wipe dipstick
clean. See Figure 8.
3. Screw oil fill cap back into oil filler tube. Tighten
securely.
4. Unscrew and remove oil fill cap from oil filler tube. Note
oil level. If oil reading on dipstick is below “ADD” mark,
slowly add oil to reach “FULL” level. See Figure 7.
5. Screw oil fill cap back into oil filler tube. Tighten
securely.
6. Wipe away any spilled oil.
C. Engine Stop Switch
Some engines are equipped with an optional Stop Switch.
This rocker switch is used to shut off the ignition that
supplies the spark plug with power. Pressing the "OFF"
position will turn the engine off when it is running. This
switch must be in the “ON” position or the engine will not
start. See Figure 9.
D. Low Oil Shutdown Switch
Some engines are equipped with an optional Low Oil
Shutdown Switch. This is a lighted rocker switch that is
connected to a float switch in the engine crankcase. When
oil level drops below a predetermined level, the float switch
cuts off current to the spark plug and the engine stops
running. Oil must be added to the engine to bring the oil to
the proper level before the engine will start. If an attempt is
made to start the engine before oil is added, the switch will
flash as the engine rotates, and the engine will not start.
See Figure 10.
Pressing the “OFF” position of the Shutdown Switch while
the engine is running, will turn the engine off. The engine
will not start with the switch in the “OFF” position.
3
1
6
1. Spark Plug Wire
2. Spark Plug Cap
3. Oil Fill Cap with Long Dipstick
4. Spark Plug
5. Oil Fill Cap with Short Dipstick
6. Oil Drain Plug
Figure 8. Engine Components
2
4
5
6
1
2
1. ON Position
2. OFF Position
Figure 9. Engine Stop Switch
1
3
1. ON Position
2. OFF Position
3. Lighted Switch
Figure 10. Low Oil Shutdown Switch
181-630-14 Four-Cycle Engine • L-Head • Horizontal Crankshaft • Air-Cooled Page 5
2
E. Low Oil Shutdown Light
Some engines are equipped with an optional low oil
shutdown system that includes a light but does not include
a rocker switch. The float switch in this system will shut the
engine off while it is running if the oil level in the crankcase
falls below a predetermined level. Oil must be added to the
engine to bring the oil to the proper level before the engine
will start. If an attempt is made to start the engine before oil
is added, the light will flash as the engine rotates, and the
engine will not start. See Figure 11.
F. Low Oil Shutdown System
Some engines are equipped with an optional low oil
shutdown system that does not have a rocker switch or a
light. The float switch in this system will shut the engine off
while it is running if the oil level in the crankcase falls below
a predetermined level. Oil must be added to the engine to
bring the oil to the proper level before the engine will start.
G. Filling Fuel Tank
!
WARNING
engine. Gasoline (fuel) vapors are highly flammable and
can explode. Fuel vapors can spread and be ignited by a
spark or flame many feet away from engine. To prevent
injury or death from fuel fires, follow these instructions:
1. Stop engine and allow it to cool before refueling.
2. Be sure engine is outdoors and in a well-ventilated
area.
3. Clean area around fuel fill cap and remove fuel fill cap.
See Figure 11.
4. Using an approved red GASOLINE container, add fuel
slowly, being careful to avoid spilling. DO NOT overfill
fuel tank. Leave space in the tank to allow fuel to
expand without overflowing.
5. Replace anti-splash fuel fill cap securely and wipe up
spilled fuel before starting engine. If fuel is spilled DO
NOT start engine. Move machine away from area of
spillage. Avoid creating any source of ignition until fuel
vapors are gone.
An adult should fuel this engine.
NEVER allow children to refuel this
6
5
4
3
2
1
9
1. Air Cleaner
2. Carburetor
3. Muffler
4. Muffler Guard
5. Oil Fill Cap
6. Spark Plug
7. Fuel Fill Cap
8. Low Oil Shutdown Light (Optional)
9. Starter Cord Handle
Figure 11. Engine Components
7
8
NOTES
Remove and discard white plastic fuel tank insert, if
provided. See Figure 12.
Replace a damaged or missing gas cap only with a genuine
Tecumseh replacement anti-splash fuel fill cap. Failure to do
so may VOID YOUR WARRANTY. See Figure 13.
6. Be sure fuel valve (optional) is open. See Figure 14.
Figure 12. Fuel Cap Insert Symbol
Page 6 Four-Cycle Engine • L-Head • Horizontal Crankshaft • Air-Cooled 181-630-14
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