Tecumseh
Lawn & Garden Engine

Model # TYPE 670-08A Official Tecumseh 2-cycle engine

Here are the diagrams and repair parts for Official Tecumseh TYPE-670-08A 2-cycle engine, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 131 parts  |

Fuel Line 29774
#68

Basic engine diagram

Fuel line

Part #29774

The manufacturer no longer makes this part, and there's no substitute part

Seal 510105
#29

Basic engine diagram

Seal

Part #510105

The manufacturer no longer makes this part, and there's no substitute part

Spring 630738
#11

Carburetor no. 631539 diagram

Spring

Part #630738

The manufacturer no longer makes this part, and there's no substitute part

Spring 630972
#8

Carburetor no. 631539 diagram

Spring

Part #630972

The manufacturer no longer makes this part, and there's no substitute part

Retainer 510106
#30

Basic engine diagram

Retainer

Part #510106

The manufacturer no longer makes this part, and there's no substitute part

Fitting 31838
#16

Carburetor no. 631539 diagram

Fitting

Part #31838

The manufacturer no longer makes this part, and there's no substitute part

Spring 510109
#31

Basic engine diagram

Spring

Part #510109

The manufacturer no longer makes this part, and there's no substitute part

Gasket 510270
#20

Basic engine diagram

Gasket

Part #510270

The manufacturer no longer makes this part, and there's no substitute part

Diap/gaskt 630978
#22

Carburetor no. 631539 diagram

Diap/gaskt

Part #630978

The manufacturer no longer makes this part, and there's no substitute part

Cover 630751
#23

Carburetor no. 631539 diagram

Cover

Part #630751

The manufacturer no longer makes this part, and there's no substitute part

Symptoms for water softeners

Choose a symptom to see related water softener repairs.

Main causes: faulty brine valve assembly, bad rotor valve…

Main causes: clogged drain hose, faulty rotor valve, leaky rotor valve seals…

Main causes: salt bridge inside the salt tank, bad timer, valve motor failure, faulty rotor valve, clogged venturi…

Main causes: loose water line connections, cracked water-carrying components, bad rotor valve seals…

Main causes: lack of electrical power, bad power transformer, faulty timer…

Main causes: empty salt tank, salt bridge, depleted resin, clogged or damaged venturi, broken rotor position switch, fai…

Main causes: broken resin tank screen, bad resin tank seals, cracked upper distributor in resin tank…

Main causes: broken water flow meter, faulty timer, water flow to softener is bypassed…

Repair guides for water softeners

These step-by-step repair guides will help you safely fix what’s broken on your water softener.

How to replace a water softener venturi

How to replace a water softener venturi

The venturi valve in your water softener draws brine water from the salt tank to the resin tank for regeneration. Follow…

Repair difficulty
Time required
 15 minutes or less
How to replace a water softener rotor position switch

How to replace a water softener rotor position switch

The rotor position switch detects the position of the valve rotor. If the rotor position switch fails, follow these step…

Repair difficulty
Time required
 30 minutes or less
How to replace a water softener timer

How to replace a water softener timer

The timer is the control board you use to program the water softener. If the timer isn’t accepting commands when you pus…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your lawn & garden engines

Use the advice and tips in these articles and videos to get the most out of your water softener.

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Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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What are the main components of a lawn mower?

Learn about the main parts of a lawn mower and when to replace parts.…