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#1 glgrumpy OFFLINE  

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Posted June 22, 2016 - 08:09 PM

Have OHV 14 engine in tractor and was searching epay for parts. Just using OHV14 doesn't seem to bring up right engine. I see the HH140, but is not OHV.  SO......what exactly is the model?  I did have some luck using Bolens G14 to find parts. I have now got an air cleaner coming for the Onan on other tractor, the Brake pulley off trans for the G14, and saved many more items on G14 listings to look at and consider later, including rods and pistons. I even found a head on there in better shape where the exhaust pipe screws into it.  Found a manual again for OHV engines, but think the list of them is incorrect for this engine??  I have the rocker box and head all loose on this thing and won't come off. Thinking there is One more bolt somewhere holding it all on, but can't find. The whole thing turns enough to see the piston some, the rocker box tubes are loose, just not letting go. Hints??  Have not found a parts or other manual yet to study. 



#2 Gtractor ONLINE  

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Posted June 22, 2016 - 08:29 PM

OH140


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#3 Tecumseh power OFFLINE  

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Posted June 22, 2016 - 10:57 PM

Have OHV 14 engine in tractor and was searching epay for parts. Just using OHV14 doesn't seem to bring up right engine. I see the HH140, but is not OHV. SO......what exactly is the model? I did have some luck using Bolens G14 to find parts. I have now got an air cleaner coming for the Onan on other tractor, the Brake pulley off trans for the G14, and saved many more items on G14 listings to look at and consider later, including rods and pistons. I even found a head on there in better shape where the exhaust pipe screws into it. Found a manual again for OHV engines, but think the list of them is incorrect for this engine?? I have the rocker box and head all loose on this thing and won't come off. Thinking there is One more bolt somewhere holding it all on, but can't find. The whole thing turns enough to see the piston some, the rocker box tubes are loose, just not letting go. Hints?? Have not found a parts or other manual yet to study.

OH140... the oh140 and hh140 are one in the same I have 5 of those motors 3 stamped hh140 and 2 oh140. If you look at a tecumseh parts diagram it is the same for hh140 and oh140 both are ohv exactly the same. don't know why they did that , but they did.

Edited by Tecumseh power, June 22, 2016 - 11:10 PM.

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#4 Tecumseh power OFFLINE  

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Posted June 22, 2016 - 10:59 PM

There is a head bolt under the rocker box, take the valve springs off then the rocker box will come off. Then you can remove the last head bolt. I can email you the right manual if you cant find it. It is on here idk how to link you to it

Edited by Tecumseh power, June 22, 2016 - 11:10 PM.

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#5 glgrumpy OFFLINE  

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Posted June 23, 2016 - 02:17 AM

Tec, I did not find right manual, OR, not understanding which is right one?? So many similar, but not exactly right. I found a parts copy off epay, now coming. Can you tell me the right one on here or by whom it was posted. ON those engines, any you wish to sell or parts of any? I found some on epay now under the Bolens name. I DID see in a diff engine manual about having to remove valve springs on smaller OHV engines, so was gonna try that. It sure seems like there is ONE more bolt for sure. Have to find time to get back to it. I was just going to replace the engine with other, but now thinking of trying to re-build this one if not broken up bad inside crankcase. I'm some worried about the threads in the exhaust hole. They are all busted out, but it does have two bolts there for a flat plate, might be able to make tube using that way.

#6 Tecumseh power OFFLINE  

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Posted June 23, 2016 - 07:11 AM

tecumseh-cast-iron-8-to-18hp-engine-manual/
See the bolt between the valve guides, it's under the rocker box

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#7 Tecumseh power OFFLINE  

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Posted June 23, 2016 - 07:12 AM

Tried to link you to it but I can't but that is the title of it. It is on the first page of the tec, manuals.
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#8 Tecumseh power OFFLINE  

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Posted June 23, 2016 - 07:19 AM

http://www.searspart...68/1503500.html
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#9 ClassicBolens OFFLINE  

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Posted June 23, 2016 - 12:02 PM

Here is a copy of the Tecumseh 8-18HP Cast Iron Service Manual that covers the HH and OH series overhead valve engines.

SmartSelectImage_2016-06-23-12-56-38.png
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#10 Tecumseh power OFFLINE  

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Posted June 23, 2016 - 02:55 PM

Thanks that is what I was trying to link him to.

#11 glgrumpy OFFLINE  

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Posted June 23, 2016 - 03:50 PM

Wow! Thanks guys!  I would not have chosen that manual by name. They sure make a million diff ones!!  Tec, you must be like me, Want to do the puter things, but have NO idea how?? Heh!  Anyway, I'll take look at these now. If real big manual, will just print out pages I need I guess. I've been wearing out print cartridges printing manuals lately. Some get up to 80 or 100 pages and I even learned to do the odd/even thing to save paper! 


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#12 Tecumseh power OFFLINE  

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Posted June 23, 2016 - 03:59 PM

Wow! Thanks guys! I would not have chosen that manual by name. They sure make a million diff ones!! Tec, you must be like me, Want to do the puter things, but have NO idea how?? Heh! Anyway, I'll take look at these now. If real big manual, will just print out pages I need I guess. I've been wearing out print cartridges printing manuals lately. Some get up to 80 or 100 pages and I even learned to do the odd/even thing to save paper!

If you have trouble finding rings the hh100 flat head rings are the same I think the piston is too. And the hh120 has the same rings and piston as the oh160


Edited by Tecumseh power, June 23, 2016 - 04:00 PM.

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#13 glgrumpy OFFLINE  

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Posted June 23, 2016 - 08:36 PM

Well, all apart now. Manual says to use socket and hit the tops of valve springs to pop off. I thought no way....tried it and boom was off. Just a quick solid hit, not too hard and they were off. I was having trouble pushing the spring down other ways. Can't get in with reg compressor, did not have the special one they show to use, which may have been much better. Found the bolt under the valve box, which lifted right off then. Tore the rest down, found broken rod pieces in it. Crank don't look real bad really. Cylinder looks great, no edges broken off or scoring. Some little dings in crankcase from pieces hitting. Cam and gov gears all look OK. Main bearings are tapered and look OK that I know now. Cleaned up some things, more to do, but gotta go to work. Here's some pictures.

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Edited by glgrumpy, June 23, 2016 - 08:41 PM.

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#14 Tecumseh power OFFLINE  

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Posted June 24, 2016 - 08:52 AM

Well, all apart now. Manual says to use socket and hit the tops of valve springs to pop off. I thought no way....tried it and boom was off. Just a quick solid hit, not too hard and they were off. I was having trouble pushing the spring down other ways. Can't get in with reg compressor, did not have the special one they show to use, which may have been much better. Found the bolt under the valve box, which lifted right off then. Tore the rest down, found broken rod pieces in it. Crank don't look real bad really. Cylinder looks great, no edges broken off or scoring. Some little dings in crankcase from pieces hitting. Cam and gov gears all look OK. Main bearings are tapered and look OK that I know now. Cleaned up some things, more to do, but gotta go to work. Here's some pictures.



when you put it back together you have to backspace those bearings with shims. I can get you the part numbers if you need them. It tells you how to do it in that Tecumseh manual

Edited by Tecumseh power, June 24, 2016 - 08:52 AM.

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#15 glgrumpy OFFLINE  

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Posted June 26, 2016 - 06:43 PM

OK, so painting up the rear and the front bolster/axle assembly now, want to start putting together again. Frame tubes had three metal flat stock peices in them, guess to keep frame from collapsing when tightening down mount bolts?? BUT, one set fell out of center when I stood them up! SO, I can get the end ones in and hold and position OK, but have no idea how to put in the middle ones and what position to put them in?? I could set in tube, push back in with broom handle or other item, but not so sure on turning them if need to be or how far in to go!  Any others have way to deal with this?  Could use some ideas.  Is any of this in manual?  I don't have service one and didn't see anything about in the owner's or parts one. Always some weird stuff when I"m working on these new brands! 






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