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Tecumseh O H V 12 Hp?


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#1 Texas Deere and Horse OFFLINE  

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Posted June 08, 2013 - 02:13 AM

Did Tecumseh make an OHV 12HP engine and use them in Ropes/Sears GT's?

 

This guy says it's a 12HP Roper,

 

http://www.ebay.com/...=item41735f47a2

 



#2 EricFromPa ONLINE  

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Posted June 08, 2013 - 03:43 AM

Looks like a Sears 12/6 or 14/6 but the 12/6 had a Flat head hh120.

 

It may be a Roper.Roper was known to put different engines in they're machines.

 

Tecumseh did make the 12,14 and 16hp in both HH (flat head) and OH (Over Head Valve).

 

Specification           Model

Number Series      Number

 

120000                     HH120

160000                     HH & OH140
170000                     HH150 & 160
170000                     OH160
175000                     OH120

 

 


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#3 MH81 ONLINE  

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Posted June 08, 2013 - 05:41 AM

I was suspect of the rope start, but one of the exploded views online shows exactly that.

Something says to me "Frankentractor" but I can't put a finger on it. It may be the roper grill throwing me off.
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#4 olcowhand ONLINE  

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Posted June 08, 2013 - 09:53 AM

Parts tree lists parts for an OH120.  Never seen one myself though.


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#5 EricFromPa ONLINE  

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Posted June 08, 2013 - 10:08 AM

Although they did make a 12hp Tecumseh powered Roper I'm not sure if they used a Flat Head HH120 with solid state ignition in it or the OH120. Could It be a Roper 14/6?

 

The 10/6 had a 10hp Briggs & Stratton,the 14/6 had a 14hp OH140 as listed Here.http://vintagesearsg...7_tractors.html

 

 

Something just doesn't look correct about that 1.

 

$(KGrHqRHJFUFF-YDR,P0BRlM3Y0hGg~~60_3.JP

 

Here is a Custom painted Roper 14/6 for comparison.

 

DSCN0262.jpg


Edited by EricFromPa, June 08, 2013 - 10:19 AM.

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#6 Texas Deere and Horse OFFLINE  

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Posted June 08, 2013 - 01:24 PM

It appears that the shroud has the starter bump in it for a starter also.

 

Thanks Guys, I never knew of anything but the OH160..

 

I can quit thinking for today now, as I learned my daily quota for today !! :rolling:



#7 OkieGt OFFLINE  

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Posted June 08, 2013 - 07:39 PM

My friend collects Sears, he says 140 and 160 OHV engines, but the 120 in a Sears was a flathead, for what it's worth


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#8 DH1 ONLINE  

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Posted June 08, 2013 - 08:24 PM

Some specs.

OH120 is a smaller bore than the OH140

 

002.JPG

 



#9 olcowhand ONLINE  

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Posted June 08, 2013 - 08:33 PM

I remember about the OH120 now.  I believe it is the HH100 with overhead valves, just like the OH140 is an HH120 fitted with overhead valves.  The OH160 is a stand alone design.  If I'm wrong, please correct me.

 

I have been corrected!  :smilewink:



#10 olcowhand ONLINE  

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Posted June 08, 2013 - 08:35 PM

But I never seen anything about an OH150 or OH180 till Doug posted the spec page above.


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#11 DH1 ONLINE  

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Posted June 08, 2013 - 08:36 PM

From what I can tell the OH120 and OH180 are stand along designs.

 

OH140 has the same bore/stroke as the HH100 and HH80

 

OH150 and OH160 have the same bore/stroke as the HH120


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#12 OkieGt OFFLINE  

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Posted June 08, 2013 - 10:42 PM

The spec page list the bore and stroke of the 120, 140, and 160 engines as the same, that CAN NOT be right


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#13 Texas Deere and Horse OFFLINE  

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Posted June 08, 2013 - 11:02 PM

The spec page list the bore and stroke of the 120, 140, and 160 engines as the same, that CAN NOT be right

 

The page that Doug posted only show the stroke of the OH 120-140 the same and the OH150,160 and 180 being the same. All show to have a different bore.


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#14 OkieGt OFFLINE  

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Posted June 08, 2013 - 11:12 PM

The page that Doug posted only show the stroke of the OH 120-140 the same and the OH150,160 and 180 being the same. All show to have a different bore.

I was looking at the spec page from the french guy" jacques", it list every engine the same except the HH100, Can anyone tell me how a 140 and 160 would have the same bore and stroke, cause all of kolher engines had different bores, not sure about stroke. I've heard guys say all these tucumseh and Briggs engine were the same except for the carbs, I'm not buying it sorry, not yet at least.



#15 OkieGt OFFLINE  

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Posted June 08, 2013 - 11:14 PM

From what I can tell the OH120 and OH180 are stand along designs.

 

OH140 has the same bore/stroke as the HH100 and HH80

 

OH150 and OH160 have the same bore/stroke as the HH120

How can that be? that a 14 hp OH140 would have the same bore and stroke as a 8hp??? I've never heard of such a thing with kohlers or cars?






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