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1971 120


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#586 Trav1s ONLINE  

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Posted July 11, 2015 - 08:40 AM

So I did a bit more testing with the digital volt meter this morning.  The stator is only putting out 20 volts.  I even tried running a lead from the voltage reg to the positive terminal (bypassing the wiring harness and the ignition switch) and the behavior is still the same.  I guess I need to pull the engine and replace the stator. 



#587 lyall ONLINE  

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Posted July 11, 2015 - 03:24 PM

Travis

I have a couple spare stators if you need one.



#588 Navy Chief OFFLINE  

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Posted July 13, 2015 - 10:12 PM

Anybody have some good used front tires? mine are worn out


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#589 Trav1s ONLINE  

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Posted August 15, 2015 - 08:44 AM

Just checked the resistance on the stator and it falls at .8 ohms resistance and manual shows .2 - .3.  Below is open winding and above is shorted winding.  Dad and I are going to pull the motor this morning.

:wallbanging:



#590 Trav1s ONLINE  

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Posted August 16, 2015 - 07:45 AM

Stator swapped and tractor back together and the problem remains.  The only other variable in the situation is the wiring harness.  I threatened to rebuild/replace when it went back together.  After spending hours with the schematics dad and I are confident that can be the only remaining variable.  Now will to hunt one down for it since Deere shows them as NLA or do it myself.  AM33302 is shared with a few 140's (30000-38000) from the same period which is not a surprise.


Edited by Trav1s, August 16, 2015 - 07:58 AM.


#591 lyall ONLINE  

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Posted August 16, 2015 - 04:50 PM

Travis

Making a new wiring harness is not hard to do.

First check the gauge of the old wires.  should be 14 or 16 gauge wire.  The wire for the amp can be 12 gauge to be on the safe side.

I have done several wiring for the the 100 and 200 series  that I have worked on.  I have used 16 gauge wire and had no problem, except for the amp wire - which should be heavier.

Deere has the wire connectors both the male and female connectors.  They cost around 50 cent each.  I have found a little cheaper.

Use the old wiring harness as a pattern and check the wiring diagram.  color coded wire makes is easier then using the some color wire and labeling each wire.  It you use the same color wire then use different color shrink wrap to help identify the wire.



#592 Trav1s ONLINE  

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Posted September 02, 2015 - 02:07 PM

Anybody have some good used front tires? mine are worn out

 

I have two you can have but not sure if they will match the rears.  Let me know.


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#593 Trav1s ONLINE  

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Posted September 02, 2015 - 05:20 PM

So I have this nifty Kirk KillerKohler K301 build on the work bench... I think it will go in the 120.   :smilewink:



#594 Trav1s ONLINE  

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Posted September 14, 2015 - 07:36 AM

Harness replaced and the 120 is back to work.  I also replaced the 25 amp circuit breaker while I was at it.  

 

Additional work included swapping the 41 deck back on and adjusting the carb linkage so the engine runs faster at WOT.  In hindsight, I know what happened.  When I swapped the Walbro out for the Carter 26, I did not adjust the linkage for the Carter.  After shortening the linkage between the governor and the carb, the engine speed came right up.


Edited by Trav1s, September 14, 2015 - 07:36 AM.


#595 Trav1s ONLINE  

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Posted September 25, 2015 - 06:29 PM

Hopped on the 120 to take care of the yard this afternoon.  Fired on the 2nd crank and ran like a top.  Charging works better than any time before the upgrades.  i just love this one.


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#596 Navy Chief OFFLINE  

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Posted October 03, 2015 - 10:23 PM

Lyall made me a new wire harness its awesome


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#597 Trav1s ONLINE  

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Posted February 12, 2016 - 09:36 PM

Look what I found on FB...  this will go good with the Killer Kohler sitting on the workbench that was going in the 312 but will find its home in the 120. 

 

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Edited by Trav1s, February 12, 2016 - 09:37 PM.

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#598 Trav1s ONLINE  

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Posted April 27, 2016 - 10:02 PM

Back from the bottom of the forum.

 

The 120 fired right up after being stored over winter once I figuring out the gas tank was empty  :bigrofl:

 

I have mowed the lawn twice and I still love this one every time I use it.  


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#599 Trav1s ONLINE  

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Posted October 19, 2016 - 09:32 PM

So I took the extra 41 deck that came with the 312 I got from lyall and decided to pretty it up for use on the 120.  It is in much better shape than the one I have been using since I finished up the 120.  Here are pics of the work along the way.  I coated the deck with POR-15 followed by etching primer, Deere buff primer which was wet sanded with 400, and 4 coats of color which were wetsanded with 400 between coats.  



#600 Trav1s ONLINE  

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Posted October 19, 2016 - 09:40 PM

After the wire wheel work I found the deck is solid and pretty straight.

 

 

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