TC/TM SERIES 2-Cycle Engines - Small Engine Suppliers

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7. Clean both gasket surfaces using isopropyl alcoholbefore application of the gasket eliminator.8. Apply Loctite #515 gasket sealant eliminator (Tecumsehpart #510334) to the crankcase surface to seal thecrankcase cover. Apply a continuous bead of Loctite(.062" [1.57 mm] bead width) on the crankcase surfaceaccording to the pattern. Loctite must not enter thecrankcase (diag. 7-31).9. Align the crankcase cover to the proper position usingthe mounting bolts as a guide. Once cover screws aresnug, tap cover down using a soft mallet to helpdisplace the gasket eliminator. Torque cover screwsto recommended torque specifications. Tighten thebolts to achieve 105 inch pounds (11.8 Nm) of torque(diag. 7-32).10. Install the compression release. Torque to 100 inchpounds (11.3 Nm).11. Install the exhaust gasket, muffler, spark arrestor ifapplicable, and bolts. Torque the muffler bolts to110 inch pounds (12.4 Nm).12. Attach the blower housing base using three screwsand torque the screws to 30-40 inch pounds (3.3 Nm- 4.5 Nm).13. Attach and torque the air vane to the carburetorthrottle shaft before installation.14. On early TM engines, install the air baffle, gaskets,spacer, and carburetor. Assemble gaskets correctly,do not block the pulse passage. Torque the two hexnuts to 30-40 inch pounds (3.3 Nm - 4.5 Nm). (SeeCarburetor Assembly instructions on page 22,Chapter 3.)15. On later TM engines, install long carburetor screwsthrough the back of the spacer. Ensure that hexheads of the screw are properly seated in the spacer.Install the air baffle, gaskets and spacer on theengine. Install gaskets correctly, do not block thepulse passage. Torque the two hex screws to 30-40inch pounds (3.3 Nm - 4.5 Nm).16. Install the flywheel key and flywheel. Install theflywheel washer and nut, use a strapwrench (part#670305) to hold the flywheel, and torque the nut to15-20 foot pounds (1.6 Nm - 2.2 Nm).Torx Head Bolt7-317-32Go to next page.46
17. Attach the ignition module, use the air gap gaugebetween the flywheel magnets and the modulelaminations (use .0125" [.317 mm] gauge part #670297). Torque the module mounting screws to 30-40 inch pounds (3.3 Nm - 4.5 Nm). Remove the airgap gauge, rotate the flywheel to assure it does notstrike the ignition module. Attach ignition groundinglead to the module terminal (diag. 7-33).18. Install the blower housing and rewind assembly.Replace the debris guard if applicable. (diag. 7-33).19. On later TM engines, install gasket and carburetor.Install sleeve spacers over carburetor screws. (diag.7-34).20. Hook the long end of the governor spring in the holein the air vane and the short end in the hole in thespeed control bracket. The spring hooks frombeneath both components. Use the illustration (diag.7-35) and the following spring location chart if the airvane has more than one governor spring hole anduses a colored spring with a square and round end.SPRING COLOR SPRING POSITIONOrange or Green 1Pink, Red, or Black 221. Hook the upper fuel tank mounting tab over theblower housing stud and the carburetor studs. Makesure the "O" ring is in position between the fuel tankand the carburetor. Torque two hex nuts to 30-40 inchpounds (3.3 Nm - 4.5 Nm). (See Carburetor Assemblyinstructions on page 22, Chapter 3.) Install filter(s),and attach the air cleaner cover. Connect the fuel lineat the tank, position the fuel line clamp on the fuelfittingNOTEMake sure sleeve spacers are installed. If they are notinstalled, the retaining nuts may loosen.22. Reset the governor and/or speed control using theprocedure in Chapter 4 under "Service".23. Install the spark plug and connect the high tensionlead.All TC300 Type II non-rotarymower use .030" (.762 mm)Air gap part number 670321VacuumChannelTowardCarburetorLATER TMSleeve Spacers.0125" (.317 mm)part number 670297All TC200,TC300 Type II rotarymowers and all TM7-33Through Hole AwayFrom Spark PlugInsulator/Spacer7-34Spring Position 1Spring Position 27-3547
Page 1: TECUMSEHT E C H N I C I A N ‘ SH
Page 4 and 5: CHAPTER 6 IGNITION ................
Page 6 and 7: I. Operate Equipment SafelyOperatio
Page 8 and 9: I. TC200 ModelsA sample TC200 decal
Page 10 and 11: FUEL REQUIREMENTSTecumseh Power Com
Page 12 and 13: STORAGE (IF THE ENGINE IS TO BE UNU
Page 14 and 15: Paper Filter Removal and Replacemen
Page 16 and 17: At IDLE the throttle shutter is alm
Page 18 and 19: TILLOTSON CARBURETOR1. Diaphragm Co
Page 20 and 21: ENGINE TROUBLESHOOTINGEngine Will N
Page 22 and 23: TROUBLESHOOTING CARBURETION—TC/TM
Page 24 and 25: CARBURETOR DISASSEMBLY1. Note or ma
Page 26 and 27: 10. Install the choke and throttle
Page 28 and 29: FUEL TANK SERVICETC Type II/TM engi
Page 30 and 31: TROUBLESHOOTINGENGINE OVERSPEEDING1
Page 32 and 33: GENERAL INFORMATIONCHAPTER 5 REWIND
Page 34 and 35: GENERAL INFORMATIONCHAPTER 6 IGNITI
Page 36 and 37: TESTING1. After repeated efforts to
Page 38 and 39: COMPONENTS1. CYLINDER2. "G" CLIP3.
Page 40 and 41: TROUBLESHOOTING ENGINE OPERATION PR
Page 42 and 43: 4. Check the flywheel key for parti
Page 44 and 45: 17. Turn the crankshaft to the 90°
Page 46 and 47: 10. Use a piston and rod holder (di
Page 48 and 49: 6. Remove the rewind starter assemb
Page 52 and 53: CHAPTER 8ENGINE SPECIFICATIONS ANDS
Page 54 and 55: SEARS CRAFTSMAN CROSS REFERENCE143.
Page 56 and 57: TOOLSFLYWHEEL PULLER 670299STRAP WR
Page 58 and 59: SEAL PROTECTOR AND INSTALLER 670275

TC/TM SERIES 2-Cycle Engines - Small Engine Suppliers

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