Vintage Sears Garden Tractors
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Vintage Sears Garden Tractors

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crankshaft specifications

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Vintage Sears Garden Tractors :: Sears Tractor Talk :: CUSTOM SERIES TRACTORS

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crankshaft specifications Empty crankshaft specifications

Post  lhp4163 August 4th 2014, 3:56 pm

My 10 hp tecumseh " Bear" ran, but something did not sound right inside; disassembled and found oil slinger had broke off from connecting rod; pulled it out; before I order a new connecting rod, I need to know the standard diameter of the crank so I can be sure of a correct fit. Does anyone know this or where can I find it? the engine # 143.060812.

lhp4163

Number of posts : 15
Age : 86
Registration date : 2014-05-20

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crankshaft specifications Empty Unknown?

Post  lhp4163 August 5th 2014, 8:24 pm

Well I guess no one knows! I'll just continue researching other sources.

lhp4163

Number of posts : 15
Age : 86
Registration date : 2014-05-20

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Post  Georgia SS August 5th 2014, 11:06 pm

Hello
 Smile The crank Journal diameter should be 1.375.
Have A Good One
Jimmy

Georgia SS

Number of posts : 222
Registration date : 2011-09-15

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Post  Georgia SS August 5th 2014, 11:24 pm

Hello
I could not find #143-060812 in Tecumseh listing, but did find #143-608012 which is a 8 HP. engine, 8-10-12 HP. engines have the same 1.3750 crank.diameter.I think you will find the rods to be different.
Jimmy

Georgia SS

Number of posts : 222
Registration date : 2011-09-15

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Post  lhp4163 August 6th 2014, 7:27 am

Thanks again Jimmy. You've been a great resource. I'll send you a picture when I get this " Bear " on the restored frame.

lhp4163

Number of posts : 15
Age : 86
Registration date : 2014-05-20

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Post  TKW August 6th 2014, 10:28 am

the bore and stroke are the same with the HH80 and HH100 engines. standard bore 3.312 / 3.313 standard piston diameter 3.308 / 3.310 and as stated crank diameter 1.375 / 1.3755. maximum rod diameter 1.3765 > tim

TKW

Number of posts : 108
Registration date : 2011-10-13

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