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And The Repower Has Begun! (Ss12)


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#16 dmorrill22 OFFLINE  

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Posted May 20, 2013 - 09:55 PM

Sorry for the lack of updates lately.  Got the tractor in a drivable condition, though it still needs work before I can put it all together and call it done.

This is what the clutch and clutch spring look like with the new engine:
130520_001_zpse64083ef.jpg

The modified clutch bracket and linkage (Note the new pivot hole on the clutch bracket):
130520_002_zps5cf22c19.jpg

A side view of the clutch bracket, showing how it needs to be bent at the bottom to allow the spring to clear the drive belt:
130520_003_zpscd866ce4.jpg

I cut the throttle lever that came with the engine, so I was left with the lever portion that connected to the governor spring.  It is hard to see, but on the right side of the picture there are vice grips clamped to a piece of angle iron.  The angle iron was bolted to an existing tab on the engine, and the vice grips are clamped to the throttle cable.  I will make a proper clamp later on.
130520_004_zpsa1634d39.jpg

A better shot of the angle iron:
130520_005_zpsaa62aa79.jpg

The choke lever also needed to be modified, as it was not designed for a remote choke lever, and also hit the grill.
130520_006_zps53e07246.jpg

I cut the lever off the choke pivot assembly, leaving me with a base to build a remote connection:
130520_007_zps811b610c.jpg

I then reused a portion of the cut lever to build a small tab extending from the base.  A hole was drilled in the end to attach a choke cable to:
130520_008_zpsc4b87087.jpg

More updates will come soon, including a shot of the clutch pivot welded to the battery tray fing32.gif.


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#17 MH81 ONLINE  

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Posted May 20, 2013 - 10:23 PM

Everything looks great, thanks for the documentation.
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#18 dmorrill22 OFFLINE  

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Posted May 21, 2013 - 09:36 PM

Here is a picture showing the modified battery tray. The clutch pivot is welded to a piece of 1/4" flat stock, and then welded to the tray.

130521_001_zpsd1f4ed91.jpg


Edited by dmorrill22, May 21, 2013 - 09:37 PM.


#19 MH81 ONLINE  

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Posted May 21, 2013 - 10:52 PM

Here is a picture showing the modified battery tray. The clutch pivot is welded to a piece of 1/4" flat stock, and then welded to the tray.
]

About how far did you have to move it to get the alignment?

#20 dmorrill22 OFFLINE  

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Posted May 21, 2013 - 11:18 PM

About how far did you have to move it to get the alignment?

 

I'll take some measurements in the morning.  In order to weld it on, I first tacked the bracket to a piece of 1/4" flat stock.  I then positioned the flat stock roughly where it needed to be, and clamped it to the battery tray.  After putting the clutch idler bracket onto the pivot, and finding where the pivot needed to be positioned, I clamped it down for the last time in prep for welding.  Then I removed the battery tray with the clamped pivot, and welded it on.


Edited by dmorrill22, May 21, 2013 - 11:28 PM.

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#21 dmorrill22 OFFLINE  

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Posted May 22, 2013 - 08:54 PM

Got a few quick measurements done.  I'll try and take better ones after the tray is done with paint.

 

ae93785c-4301-4ff3-bdbf-2e21c98f6ae1_zps


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#22 dmorrill22 OFFLINE  

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Posted May 29, 2013 - 05:10 PM

Used the tractor the other day to mow the lawn.  Engine didn't even notice.  Been working on and off on it, and today I added a Stanley AC-1 muffler from TSC as a stack.  A little bit louder than stock, but I can deal with it.  Adding the Tecumseh HH120 air cleaner soon, just have to finish making brackets for it.  Also need to come up with a brace for the exhaust, the one in the pictures was just temporary and will not clear the hood.

130529_001_zpse9759c21.jpg

130529_002_zps226b098f.jpg

130529_003_zpscebcdc44.jpg

130529_004_zpse8540d6d.jpg

And a video of the new muffler:
th_130529_001_zps37779bc4.jpg


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#23 MH81 ONLINE  

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Posted May 31, 2013 - 06:59 PM

Sounds good,
"a little louder"... not much, those old 12's made a lot of noise with just a pepper shaker on them.

Thanks for the update.
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#24 dmorrill22 OFFLINE  

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Posted May 31, 2013 - 08:38 PM

Just realized that video is useless, I took it on my phone but you can't hear anything.  Oh well.

 

MH81, the pepper can muffler lasted about a day after I first got the hh120 running when I bought the tractor.  After it blew apart, I made a stack muffler that was pretty quiet, but was too heavy to use on this new engine.  I wanted a better stack, so I bought the AC-1 muffler from TSC.

 

Little bit louder than my homemade stack, but I think it is a straight through design as opposed to mine which forced exhaust around obstacles.



#25 MH81 ONLINE  

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Posted May 31, 2013 - 08:49 PM

Just realized that video is useless, I took it on my phone but you can't hear anything.  Oh well.
 

The first 10 seconds give you the idea anyways, my phone does that too... Darned noise canceling.

#26 dmorrill22 OFFLINE  

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Posted June 04, 2013 - 08:59 PM

The repower has finally reached a point to where I can get the hood and grille back on the tractor.  Made a custom air cleaner brackets to mount the Tecumseh HH120 air cleaner under the hood, and used a washing machine rubber hose I had to connect the cleaner to the carburetor.  Still have some detail stuff to finish, and cleaning up brackets and whatnot, but I tested the setup out today mowing the lawn.  I think I'll have to rejet the carburetor soon as it is harder to start.

 

Made a bracket for the air cleaner, and a brace for the stack:

130604_001_zps11c8133f.jpg

 

Under the hood:

130604_002_zps1dccb66e.jpg

 

Closeup of the air cleaner with the washer hose:

130604_003_zps5370b20b.jpg

 

130604_004_zpsa8ff2287.jpg

 

The red pipe on the brackets came from the front fork of an old bicycle - It was 1" OD and had a smooth curve which was perfect for the air cleaner:

130604_005_zps4048c58f.jpg

 

Lawn Mowed!

130604_006_zps8083ebc6.jpg



#27 MH81 ONLINE  

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Posted June 05, 2013 - 09:34 AM

Beautiful job, really nice to see the heart transplant go this well for you.
Mower deck looks pretty intact too.

Maybe you covered it before and I just missed it, but what is the black handle on the left of the dash?
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#28 dmorrill22 OFFLINE  

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Posted June 05, 2013 - 11:10 AM

Beautiful job, really nice to see the heart transplant go this well for you.
Mower deck looks pretty intact too.

Maybe you covered it before and I just missed it, but what is the black handle on the left of the dash?

Mower deck needs quite a bit of work, but I can't complain for how old it is.  Next summer I want to replace the top of the deck, as it is warped and has plenty of holes.  Also, the center mandrel is bent so the pulley doesn't rotate true - leading to a lot of unnecessary vibration.  I want to replace it with a two stack pulley and run one belt from the center mandrel to the outer mandrels - rather than have the two short belts that are on it right now.

 

The black handle actuates a toggle switch for the winch on my plow setup.  In the wintertime, I can wear gloves and easily raise/lower the plow without having to fiddle with a tiny switch handle.  I'll be posting an update on the plow build soon, which will cover the whole setup :thumbs:

 

EDIT:  I never quite explained why I was really motivated to do this repower.  In the wintertime, we get a ton of snow from drifting and whatnot, and this tractor is really the only thing I have that could tackle it.  I was sick of the starter-generator setup on the Tec slowly spinning it over and draining the battery, and the Tec always gave me problems in the winter.  I will be off at college during most of the winter, so I need something reliable that I can leave to my mom to use while I am gone.  This is largely the reason for the repower/tractor renewal.  I am also adding a few features such as a limit switch on the plow setup that will prevent the plow from being raised too high and snapping the winch cable.  The end goal is to have a reliable, user-friendly tractor that I can let anyone use without worrying about something breaking.


Edited by dmorrill22, June 05, 2013 - 11:51 AM.

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