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Tecumseh Products OV358 | Operator Manual - Page 1
'stoMr'sanMuanl ual OV358EA Four-Cycle Engine • Vertical 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 4 IV. Before Starting Your Engine 4 V. Starting Your Engine 6 VI
Tecumseh Products OV358 | Operator Manual - Page 2
and (TWC) Three-way Catalyst (if so equipped). TecumsehPower Contact Information For engine adjustments, repairs or warranty service NOT covered in this manual, contact your nearest Authorized TecumsehPower Servicing Dealer. Find them on our website at www.TecumsehPower.com or call TecumsehPower
Tecumseh Products OV358 | Operator Manual - Page 3
engine or siphon fuel by mouth. To empty the fuel tank, see "I. Draining Fuel" instructions on page 14. C. Adult Supervision of Operation, Refueling and Maintenance The manufacturer of the equipment may provide information about who is allowed to use this engine (see equipment manufacturer's manual
Tecumseh Products OV358 | Operator Manual - Page 4
use in such applications. Consult your local Authorized TecumsehPower Servicing Dealer, call 1-800-558-5402, or visit 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
Tecumseh Products OV358 | Operator Manual - Page 5
Maintenance Tips On-Line Store Locate your nearest TecumsehPower Servicing Dealer A. Engine Identification Decal A sample engine identification decal is located in the next column and indicates the engine's model number, specification and date of manufacture (DOM). See Figure 4. NOTES Please look
Tecumseh Products OV358 | Operator Manual - Page 6
is marked A.P.I. Service "SL/SJ". engines. Alternative fuels with high alcohol content can cause hard starting, poor engine performance, and may cause internal engine damage. NOTE Damage and/or performance problems that occur from use of fuels other than those listed in the Operator's Manuals
Tecumseh Products OV358 | Operator Manual - Page 7
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. NOTE For recommended fuel, see Table 2 and "III. Oil and Fuel Specifications" instructions on page
Tecumseh Products OV358 | Operator Manual - Page 8
If you are unable to start this engine after following instructions in this manual, contact your Authorized TecumsehPower Servicing Dealer. To avoid serious burn injuries or damage to your engine, DO NOT attempt to start or troubleshoot this engine in any other way. For example: • DO
Tecumseh Products OV358 | Operator Manual - Page 9
move independent choke control to "FULL CHOKE" position and start engine. 8. If engine does NOT start after following steps 1 thru 7, contact your Authorized TecumsehPower Servicing Dealer. DO NOT attempt to start or troubleshoot this engine in any other way . Choke Control Speed Control Figure 10
Tecumseh Products OV358 | Operator Manual - Page 10
manufacturer's instructions). See Figures 13 and 14. NOTE If restarting a warm engine after a engine does NOT start after following steps 1 thru 6, contact your Authorized TecumsehPower Servicing Dealer. DO NOT attempt to start or troubleshoot this engine in any other way. Page 8 Four-Cycle Engine
Tecumseh Products OV358 | Operator Manual - Page 11
Position 2. "1/2 CHOKE" Position 3. "FULL CHOKE" Position Figure 18. Engine Mounted Choke Lever 8. If engine does NOT start after following steps 1 thru 7, contact your Authorized TecumsehPower Servicing Dealer. DO NOT attempt to start or troubleshoot this engine in any other way 181-1132-14 Four
Tecumseh Products OV358 | Operator Manual - Page 12
See "III. Oil and Fuel Specifications" instructions and Table 1 on page 4. See Figure 20. Afterward, continue reading instructions below. 9. Wipe away . Contact your Authorized TecumsehPower Servicing Dealer for a genuine replacement Oil Filter. Page 10 Four-Cycle Engine • Vertical Crankshaft • Air
Tecumseh Products OV358 | Operator Manual - Page 13
engine speed and reduce the risk of fire. See Figure 21. NOTES Before removing air cleaner cover, see "III. Filter Removal/ Installation" instructions see "I. Servicing Foam Pre-Filter" and/or "II. Servicing Paper Filters" instructions on page 12. Afterward, continue reading instructions below. 4.
Tecumseh Products OV358 | Operator Manual - Page 14
air cleaner installed on engine. Your air cleaner periodically needs to be cleaned or replaced. NOTES ALWAYS inspect filter(s) for discoloration or dirt accumulation. If either is present, see "I. Servicing Foam Pre-Filter" and/or "II. Servicing Paper Filters" instructions. Contact your Authorized
Tecumseh Products OV358 | Operator Manual - Page 15
stabilizer for more than 15-30 days, prepare it for short-term/seasonal storage. See "IV. Fuel Treatment" instructions on page 14. Afterward, continue reading instructions below. If engine fuel is to be stored for more than one season, without gasoline stabilizer, it will gradually deteriorate. Also
Tecumseh Products OV358 | Operator Manual - Page 16
while waiting until the remaining fuel is consumed. ! WARNIINNGG NEVER leave the engine unattended when it is running and NEVER run engine in enclosed areas to avoid death or serious injury. 3. Begin servicing the cylinder bore. See "II. Oil Cylinder Bore" instructions on page 15. NOTE If
Tecumseh Products OV358 | Operator Manual - Page 17
cylinder bore, fuel may spray from spark plug hole. To prevent serious injury from fuel fires, follow these instructions: 1. Carefully disconnect your engine does NOT have a spark arrester, you may purchase one from your Authorized TecumsehPower Servicing Dealer. In some cases the muffler may
Tecumseh Products OV358 | Operator Manual - Page 18
the most important things that you can do to extend the life of your TecumsehPower engine. If you are unable to perform maintenance intervals yourself, contact your nearest Authorized TecumsehPower Servicing Dealer. Find them on our website at www.TecumsehPower.com or call TecumsehPower Company at
Tecumseh Products OV358 | Operator Manual - Page 19
Owner/Dealer Date Owner/Dealer Date Owner/Dealer Date Owner/Dealer Date Owner/Dealer Date Owner/Dealer Date Owner/Dealer 181-1132-14 Four-Cycle Engine • Vertical Crankshaft • Air-Cooled Page 17
Tecumseh Products OV358 | Operator Manual - Page 20
Date Owner/Dealer Date Owner/Dealer Date Owner/Dealer Date Owner/Dealer Date Owner/Dealer Date Owner/Dealer Date Owner/Dealer Page 18 Four-Cycle Engine • Vertical Crankshaft • Air-Cooled 181-1132-14
Tecumseh Products OV358 | Operator Manual - Page 21
NOTES 181-1132-14 Four-Cycle Engine • Vertical Crankshaft • Air-Cooled Page 19
Tecumseh Products OV358 | Operator Manual - Page 22
engine to a TecumsehPower Authorized Service Outlet (any TecumsehPower Registered Service Dealer, TecumsehPower Authorized Service Distributor or TecumsehPower Central Warehouse Distributor) as soon as a problem charges for making service calls and/or for transporting the products to and from the
Tecumseh Products OV358 | Operator Manual - Page 23
as specified in the Operator's Manual shall be warranted for the ECS Warranty Period. A statement in such written instructions to the effect of "repair at a TecumsehPower Authorized Service Outlet. 6. TecumsehPower Company shall be liable for damages to other original engine components or approved
Tecumseh Products OV358 | Operator Manual - Page 24
product, or failure to follow the instructions contained in an Instruction Manual for the operation of the new TecumsehPower engine or part. The cost of normal maintenance or replacement of service apply to you. This Limited Warranty gives you specific legal rights and you may also have other legal

Section	Page
Four-Cycle Engine . Vertical Crankshaft . Air-Cooled	1
181-1132-14	1
(English) 7/01/08	1
IMPORTANT NOTICE!	2
Safety Definitions	2
Notice Regarding Emissions	2
I. General Safety Precautions	3
A. Avoid Carbon Monoxide Poisoning	3
B. Avoid Gasoline Fires	3
C. Adult Supervision of Operation, Refueling and Maintenance	3
D. Stay Away from Rotating Parts	3
E. DO NOT Modify Engine	4
F. Avoid Burns and Fire from Hot Surfaces	4
G. Avoid Accidental Starts	4
H. Use Hearing Protection	4
Figure 1. Typical Flywheel Guard Location	4
Figure 2. Typical Spark Plug Connection	4
Figure 3. Disconnecting/Connecting Spark Plug	4
II. How to Get Service	5
A. Engine Identification Decal	5
B. Technician’s Handbook	5
Figure 4. Engine Identification Decal	5
Figure 5. Technician’s Handbook	5
III. Oil and Fuel Specifications	6
A. Oil	6
B. Fuel	6
IV. Before Starting Your Engine	6
A. Checking Oil Level	6
Table 1. Recommended Oil	6
Table 2. Recommended Fuel	6
Figure 6. Engine Oil Level	6
B. Filling Oil Sump	7
1. Be sure engine is upright and level.	7
2. Unscrew oil fill cap from oil filler tube and wipe dipstick clean. See Figure 7.	7
3. Screw oil fill cap back into oil filler tube. Tighten securely.	7
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 6 on on page 4. Afterward, continue reading instructions below.	7
5. Screw oil fill cap back into oil filler tube. Tighten securely.	7
6. Wipe away any spilled oil.	7
C. Filling Fuel Tank	7
1. Stop engine and allow it to cool before refueling.	7
2. Be sure engine is outdoors and in a well-ventilated area.	7
3. Clean area around fuel fill cap and remove fuel fill cap.	7
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.	7
5. Replace 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.	7
1. Spark Plug	7
2. Spark Plug Cap	7
3. Spark Plug Wire	7
4. Oil Fill Plug and Dipstick	7
5. Air Intake Screen	7
6. Air Filter	7
7. Oil Filter (Optional)	7
8. Carburetor	7
Figure 7. Engine with Oil Fill Dipstick	7
V. Starting Your Engine	8
A. Engines with Electric Starters	8
Table 3. Engines with Electric Starters	8
I. Combined Speed and Choke Control	8
1. To avoid carbon monoxide poisoning, be sure engine is outdoors in a well-ventilated area.	8
2. Move combined control to “CHOKE” or “START” position (see equipment manufacturer’s instructions). See Figures 8 and 9.	8
3. Push starter button or turn ignition switch key (see equipment manufacturer’s instructions) to start engine.	8
Figure 8. Combined Speed and Choke Control	8
Figure 9. Typical Engine Symbols	8
4. When engine starts:	8
a. Release starter button or ignition switch key.	8
b. Next, move combined control to “FAST” position.	8
c. Finally, move combined control to desired speed in “RUN” range.	8
a. Momentarily move combined control back to “CHOKE” position.	8
b. Next, move combined control to “FAST” position.	8
c. Finally, move combined control to desired speed in “RUN” range.	8
5. If engine fires but does NOT continue to run, move combined control to “FAST” position and then start engine.	8
6. If engine fails to start after 3 attempts with combined control in “FAST” position, move combined control to “CHOKE” position and push button or turn key to start engine again.	8
7. If engine does NOT start after following steps 1 thru 6, contact your Authorized TecumsehPower Servicing Dealer. DO NOT attempt to start or troubleshoot this engine in any other way.	8
II. Independent Speed and Choke Controls	9
1. To avoid carbon monoxide poisoning, be sure engine is outdoors in a well-ventilated area.	9
2. Move independent speed control to “FAST” position and set independent choke control to “FULL CHOKE” position (see equipment manufacturer’s instructions). See Figures 9 thru 11.	9
3. Push starter button or turn ignition switch key (see equipment manufacturer’s instructions) to start engine.	9
4. When engine starts:	9
a. Release starter button or ignition switch key.	9
b. Next, move independent choke control to “1/2 CHOKE” position until engine runs smoothly.	9
c. Next, move independent choke control to “NO CHOKE” position.	9
5. Finally, move independent speed control to desired speed in “RUN” range.	9
a. Momentarily move independent choke control back to “FULL CHOKE” position.	9
b. Next, move independent choke control to “1/2 CHOKE” position until engine runs smoothly.	9
c. Finally, move independent choke control to “NO CHOKE” position.	9
6. If engine fires but does NOT continue to run, move independent choke control to “NO CHOKE” position and start engine.	9
7. If engine fails to start after 3 attempts in the “NO CHOKE” position, move independent choke control to “FULL CHOKE” position and start engine.	9
8. If engine does NOT start after following steps 1 thru 7, contact your Authorized TecumsehPower Servicing Dealer. DO NOT attempt to start or troubleshoot this engine in any other way	9
Figure 10. Independent Speed and Choke Controls	9
1. “NO CHOKE” Position	9
2. “1/2 CHOKE” Position	9
3. “FULL CHOKE” Position	9
Figure 11. Choke Control Positions	9
1. “NO CHOKE” Position	9
2. “1/2 CHOKE” Position	9
3. “FULL CHOKE” Position	9
Figure 12. Engine Mounted Choke Lever	9
B. Engines with Recoil Starters	10
Table 4. Engines with Recoil Starters	10
I. Combined Speed and Choke Control	10
1. To avoid carbon monoxide poisoning, be sure engine is outdoors in a well-ventilated area.	10
2. Move combined control to “CHOKE” or “START” position, if present (see equipment manufacturer’s instructions). See Figures 13 and 14.	10
3. Grasp starter cord handle. See Figure 15.	10
a. Pull rope out slowly until you feel drag.	10
b. Without allowing the rope to retract, continue pulling rope with one rapid full arm stroke.	10
c. Return rope slowly to original position.	10
4. When engine starts:	10
a. Move combined control to “FAST” position.	10
b. Next, move combined control to desired speed in “RUN” range.	10
a. Momentarily move combined control back to “CHOKE” position.	10
b. Next, move combined control to “FAST” position.	10
c. Finally, move combined control to desired speed in “RUN” range.	10
Figure 13. Combined Speed and Choke Control	10
Figure 14. Typical Engine Symbols	10
Figure 15. Recoil Starter	10
5. If engine fires but does NOT continue to run, move combined control to “FAST” position and pull the starter rope.	10
6. If engine fails to start after 3 attempts with combined control in the “FAST” position, move combined control to “FULL CHOKE” position and pull the starter rope again.	10
7. If engine does NOT start after following steps 1 thru 6, contact your Authorized TecumsehPower Servicing Dealer. DO NOT attempt to start or troubleshoot this engine in any other way.	10
II. Independent Speed and Choke Controls	11
1. To avoid carbon monoxide poisoning, be sure engine is outdoors in a well-ventilated area.	11
2. Move independent speed control to “FAST” position and set independent choke control to “FULL CHOKE” position (see equipment manufacturer’s instructions). See Figures 14, 16, and 17.	11
3. Grasp starter cord handle. See Figure 15.	11
a. Pull rope out slowly until you feel drag.	11
b. Without allowing the rope to retract, continue pulling rope with one rapid full arm stroke.	11
c. Return rope slowly to original position.	11
4. When engine starts:	11
a. Move independent choke control to “1/2 CHOKE” position until engine runs smoothly.	11
b. Next, move independent choke control to “NO CHOKE” position.	11
5. Move independent speed control to desired speed in “RUN” range.	11
a. Momentarily move independent choke control back to “FULL CHOKE” position.	11
b. Next, move independent choke control to “1/2 CHOKE” position until engine runs smoothly.	11
c. Finally, move independent choke control to “ NO CHOKE” position.	11
6. If engine fires but does NOT continue to run, move independent choke control to “NO CHOKE” position and pull starter rope again.	11
7. If engine fails to start after 3 attempts in the “NO CHOKE” position, move independent choke control to “FULL CHOKE” position and pull starter rope again.	11
Figure 16. Independent Speed and Choke Controls	11
1. “NO CHOKE” Position	11
2. “1/2 CHOKE” Position	11
3. “FULL CHOKE” Position	11
Figure 17. Choke Control Positions	11
1. “NO CHOKE” Position	11
2. “1/2 CHOKE” Position	11
3. “FULL CHOKE” Position	11
Figure 18. Engine Mounted Choke Lever	11
8. If engine does NOT start after following steps 1 thru 7, contact your Authorized TecumsehPower Servicing Dealer. DO NOT attempt to start or troubleshoot this engine in any other way	11
VI. Stopping Your Engine and Short-Term Storage	12
VII. Maintenance	12
A. Checking and Changing Oil	12
1. Be sure you find the correct drain plug location, if present (see equipment manufacturer’s instructions). See Figure 19.	12
2. Carefully disconnect spark plug wire and keep it away from spark plug. See \	12
3. Be sure the fuel fill cap is on and is tightened securely.	12
4. Clean area around oil drain plug.	12
Figure 19. Oil Drain Plug Location	12
Figure 20. Oil Filler Locations	12
5. Place approved recyclable oil container under oil drain plug (see equipment manufacturer’s instructions).	12
6. Remove oil drain plug and drain oil into an approved container. See Figure 19.	12
7. Install oil drain plug and tighten securely.	12
8. Fill with recommended oil. See \	12
9. Wipe away any spilled oil.	12
10. Carefully disconnect spark plug wire from grounding post, if provided.	12
11. Connect spark plug wire to spark plug before attempting to start engine.	12
B. Removing Debris from Engine	13
1. Remove air cleaner cover and filters. See Figure 21	13
2. Remove debris from air inlet, air cleaner cover and air intake screen.	13
3. Inspect filter(s) for discoloration or dirt accumulation. If either is present, see \	13
4. Replace air cleaner cover and filters.	13
C. Spark Plug	13
1. Clean area around spark plug.	13
2. Remove and inspect spark plug.	13
3. Replace spark plug if porcelain is cracked or if electrodes are:	13
4. Check electrode gap with wire feeler gauge and set gap to-.030 in. (0.76 mm) if necessary. See Figure 23.	13
5. Install spark plug and tighten securely.	13
1. Cooling Fins	13
2. Levers and Linkage	13
3. Air Inlet	13
4. Air Cleaner Cover	13
5. Air Intake Screen	13
Figure 21. Debris Locations	13
Figure 22. Linkage and Lever Bending	13
1. .030 in. (0.76 mm) Gap	13
2. Electrodes	13
3. Porcelain	13
Figure 23. Spark Plug	13
D. Cleaning/Replacing Air Cleaner	14
I. Servicing Foam Pre-Filter	14
1. Wash in warm water and detergent solution then press (DO NOT twist) until all dirt is removed.	14
2. Rinse thoroughly until water is clear.	14
3. Wrap in a clean cloth and press (DO NOT twist) until completely dry.	14
4. Replace foam pre-filter onto paper filter.	14
II. Servicing Paper Filters	14
III. Filter Removal/Installation	14
1. Remove wing nuts from air cleaner cover. See Figure 24.	14
2. Remove air cleaner cover while lifting upward then outward.	14
3. Remove fasteners.	14
4. Remove and inspect filter(s) for discoloration or dirt accumulation. If either is present, see \	14
5. Clean inside of cover and body thoroughly.	14
6. Install paper filter (see equipment manufacturer’s instructions).	14
7. Install fasteners.	14
8. Install foam pre-filter (see equipment manufacturer’s instructions).	14
9. Install cover by pushing down onto body securely.	14
10. Install wings nuts and tighten securely.	14
1. Body	14
2. Paper Filter	14
3. Fasteners	14
4. Foam Pre-Filter	14
5. Air Cleaner Cover	14
6. Wing Nuts	14
Figure 24. Air Cleaner Components	14
E. Carburetor	14
F. Engine Speed	14
G. Adjustments	14
VIII. Transporting Your Engine	15
1. Empty fuel tank by using a commercially available suction device designed for use with gasoline.	15
2. Drain fuel into an approved red GASOLINE container, being careful to avoid spilling.	15
3. Run the engine until remaining fuel is consumed.	15
IX. Storing Your Engine	15
A. Short-Term/Seasonal Storage	15
I. Clean Engine	15
II. Fuel Storage	15
III. Fuel System	16
IV. Fuel Treatment	16
1. Add fuel stabilizer according to manufacturer’s instructions.	16
2. Run engine at least 10 minutes after adding stabilizer to allow it to reach carburetor.	16
B. Extended Storage	16
I. Draining Fuel	16
1. To prevent serious injury from fuel fires, empty fuel tank by running engine until it stops from lack of fuel. DO NOT attempt to pour fuel from engine.	16
2. Run the engine while waiting until the remaining fuel is consumed.	16
3. Begin servicing the cylinder bore. See \	16
II. Oil Cylinder Bore	17
1. Carefully disconnect spark plug wire and keep it away from spark plug. See Figures 25 and 26.	17
2. Remove spark plug.	17
3. Squirt 1oz. (30 ml) of clean engine oil into spark plug hole.	17
4. Cover spark plug hole with rag to prevent fuel from spraying from spark plug hole when starter rope is pulled.	17
5. Grasp starter cord handle:	17
a. Pull starter cord handle out slowly using a full arm stroke.	17
b. Repeat once. (This will distribute oil throughout the cylinder to prevent corrosion during storage.)	17
6. Remove rag covering spark plug hole.	17
7. Install spark plug.	17
8. Carefully disconnect spark plug wire from grounding post, if provided.	17
9. Connect spark plug wire to spark plug before attempting to start engine.	17
III. Oil	17
IV. Battery	17
Figure 25. Typical Spark Plug Connection	17
Figure 26. Disconnecting/Connecting Spark Plug	17
X. Preventing Forest, Brush and Grass Fires	17
XI. Maintenance Intervals	18
Table 5. Maintenance Intervals	18
1. Clean Foam Pre-Filter	19
1. Replace Paper Filter	20
1. Replace Spark Plug	20
181-1132-14	24