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10 HP Tecumseh Starting problems

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Kevin Kearney

10-02-2005 18:31:13

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Ok..

Had this mower for a while and cant seem to resolve the starting problems. It seems that using the starter drains the battery something awful. The first turn of the key results in the engine cranking slowly. It will fire but hesitate and kickback a bit. If you are lucky, it will fire and run. If it doesnt start on the first try, the starter will not turn the engine past the point of compression without a long pause and it heats up something awful

When I try the starter without the plug in, it turns and turns no problem.

Is the starter just weak? It remids me of an old Chevrolet pickup I had. The starters were too close to the headers and once it got hot, you had to wait until it cooled to start it again.

Anyone experience this?

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Gene Davis (Ga.)

10-04-2005 20:23:37

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Re: 10 HP Tecumseh Starting problems in reply to Kevin Kearney, 10-02-2005 18:31:13

Be sure you have a good ground path from the battery to the starter,

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Kent of SW MO

10-03-2005 05:53:12

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Re: 10 HP Tecumseh Starting problems in reply to Kevin Kearney, 10-02-2005 18:31:13

Sounds like the exhaust valve clearance may be to wide which will disable the decompression function causing hard cranking. Be sure the piston is at TDC on the compression stroke or ever a little after TDC will not hurt. If you do not have the engine at TDC you will not set the valve right and not solve the problem.

Kent

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Dannie

10-03-2005 00:58:10

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Re: 10 HP Tecumseh Starting problems in reply to Kevin Kearney, 10-02-2005 18:31:13

Check the key in flywheel it could be off time .If not you have valve trouble.

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don watts

10-02-2005 18:47:19

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Re: 10 HP Tecumseh Starting problems in reply to Kevin Kearney, 10-02-2005 18:31:13

is this an overhead valve tecumseh.if so it sounds like the valves are set wrong .i believe they should be at about .004 make sure the piston isd at top dead center when settin them .if not the starter brushes could be worn.good luck don

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Kevin Kearney

10-02-2005 18:53:27

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Re: 10 HP Tecumseh Starting problems in reply to don watts, 10-02-2005 18:47:19

No, the starter brushges are OK. I had it apart today looking for trouble but couldnt find any.

I dont think this engine has ever been apart since new, so Im not sure about the valves being set.

This is a Sears 30" mower.
MId-1980's

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