Jump to content

Nominations for Tractor of the Month
Garden Tractors and Parts on eBay



Photo
- - - - -

John Deere L111 Electrical Starting Gremlins - Suggestions?

electrical starting

  • Please log in to reply
7 replies to this topic

#1 JMC OFFLINE  

JMC
  • New Member
  • Member No: 35258
  • 1 Thanks
  • 1 posts

Posted May 09, 2013 - 04:46 PM

My JD 2005 L111 riding lawnmower is having ELECTRICAL starting problems.

Here are the symptoms:

Randomly will only produce a 1/2 crank (engine won't turn over) when key is turned and then silence. Other times it cranks until it fires.

What I have done:
1) changed the battery to new
2) charged the battery
3) replaced the starter selonoid
4) listened for a click sound at the selonoid when the key is turned - yes it does click so I think the selonoid is fine
5) jumped with a car battery - no difference
6) jumpered between the positive terminal on the mower battery and the positive terminal on the starter - this usually produces a lot of sparks and forces the starter to crank - then the engine fires

Out if ideas:

it seems the selonoid, battery, and likely the voltage regulator and alternator are fine as the battery seems strong. I have not changed the starter, but when I jumper it , it cranks fine so not sure that is the problem. Also the 20 amp fuse in the ignition is fine.

suggestions welcome - this is the dual OHV version of the L111 - 2 cylinder.

Thank you


  • WNYTractorTinkerer said thank you

#2 New.Canadian.DB.Owner OFFLINE  

New.Canadian.DB.Owner
  • Senior Member
  • Contributor
  • Member No: 10178
  • 2,223 Thanks
  • 1,450 posts
  • Location: Trenton, Ontario, Canada

Posted May 09, 2013 - 06:10 PM

I had a similar problem with my John Deere STX38.  The problem was high resistance in the safety switches.  The lower voltage left after the dirty safety switches is enough to hold the relay closed.

 There is a mod you can do that inserts a relay before the solenoid.  The relay dumps battery voltage directly onto the solenoid. I posted a diagram in the John Deere forum:


http://gardentractor...138-wont-start/


Edited by New.Canadian.DB.Owner, May 09, 2013 - 06:11 PM.

  • JMC said thank you

#3 JDBrian OFFLINE  

JDBrian

    Super Moderator

  • Super Moderator
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 2507
  • 9,574 Thanks
  • 14,136 posts
  • Location: Hubley, Nova Scotia - Canada

Posted May 09, 2013 - 06:16 PM

Resistance anywhere in the high current circuit will limit the cranking power available. If the fix above doesn't sort out the problem check all the high current wiring for loose connections or signs of heating. 


  • New.Canadian.DB.Owner and JMC have said thanks

#4 WNYTractorTinkerer ONLINE  

WNYTractorTinkerer

    Tinker Master

  • Senior Member
  • -GTt Supporter-
  • Member No: 10789
  • 8,297 Thanks
  • 4,656 posts
  • Location: Avon, NY

Posted May 09, 2013 - 07:58 PM

Try rotating the engine by hand to make sure that is the  cause,  Did you chek/inspect your GROUND cable??  Try jumping from the good battery directly to the engine..  Just a thought..


  • JMC said thank you

#5 HDWildBill OFFLINE  

HDWildBill

    Freedom is not Free. Thank those in uniform for your freedom.

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 6354
  • 8,697 Thanks
  • 8,555 posts
  • Location: Ga

Posted May 09, 2013 - 07:59 PM

As stated check out the resistance in the circuit.  look for corrosion on all the connections and you might even remove the negative terminal from the frame and clean it.  If all this check out make sure the new battery has the required CCA for your tractor.  I just had Zero turn in the shop and the problem was it wouldn't start much like yours.  It had brand new battery, solenoid, starter.  I could hand turn the engine just past the compression stroke and it would start but if it was on the compression stroke forget it.  I put in the correct 330 CCA battery and all is well.  On a side note I think your tractor cranks sometimes because it is just past that compression stroke and the electrical system can handle it.


  • JMC said thank you

#6 WNYTractorTinkerer ONLINE  

WNYTractorTinkerer

    Tinker Master

  • Senior Member
  • -GTt Supporter-
  • Member No: 10789
  • 8,297 Thanks
  • 4,656 posts
  • Location: Avon, NY

Posted May 10, 2013 - 10:04 AM

**BY THE WAY...   :welcometogttalk:



#7 HDWildBill OFFLINE  

HDWildBill

    Freedom is not Free. Thank those in uniform for your freedom.

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 6354
  • 8,697 Thanks
  • 8,555 posts
  • Location: Ga

Posted May 10, 2013 - 04:08 PM

**BY THE WAY...   :welcometogttalk:

 

 

Ditto! 



#8 aaarrr OFFLINE  

aaarrr
  • Member
  • Member No: 82902
  • 0 Thanks
  • 2 posts
  • Location: parkton, maryland

Posted May 13, 2016 - 12:42 PM

Try adjusting the valves. The camshaft on this motor has a compression relief built into it. The valves must be properly adjusted for it to work. When properly adjusted the starter will have no problem spinning the motor.






Top