hep wiring my gt14 wheelhorse

[paul lemelin 0]

I have a 1972 gt 14  model#10502-7  k321 s model 60149c ser #4102326.  tractor serial #is 878457.  I have an 8362 ignition switch with an m instead of the i.  I have the wiring diagram for this tractor with the pto clutch switch.  I don't know if i'm wiring the pto switch upside down or if it doesn't matter.  I need someone to break this down wire for wire so that i can get this right.  i am frustrated to no end.  i think the pto switcjh has me confused.   PLEASE HELP 

THANKS Paul

[gwest_ca-(File Mod) 11,046]

This 1969 diagram should be the same. This is a double-pole single-throw switch. Two terminals on one side are connected in one position and the other two are connected in the other position.
Does that make sense?
With the switch mounted and the top pushed in the pto terminals should be connected.
With the bottom pushed in the starter solenoid terminals should be connected.

Garry

This diagram was not correct for the 1972 so removed it.
 

 

Edited September 10, 2015 by gwest_ca

[MikesRJ 552]

Here's teh manual:
http://www.mywheelhorse.com/graphics/file/Tractors/Tractor_1973_10-12-14-16Auto_OM_A-5325.pdf

[paul lemelin 0]

This 1969 diagram should be the same. This is a double-pole single-throw switch. Two terminals on one side are connected in one position and the other two are connected in the other position.
Does that make sense?
With the switch mounted and the top pushed in the pto terminals should be connected.
With the bottom pushed in the starter solenoid terminals should be connected.

Garry
 

This is the same diagram that I have .   Is there a jump from the R to the M?

This 1969 diagram should be the same. This is a double-pole single-throw switch. Two terminals on one side are connected in one position and the other two are connected in the other position.
Does that make sense?
With the switch mounted and the top pushed in the pto terminals should be connected.
With the bottom pushed in the starter solenoid terminals should be connected.

Garry
 

Thanks for the quick response!  I will try this.  It seems like there should be a jumper between the S and the M  when does the M get power to the points?

[gwest_ca-(File Mod) 11,046]

The M is for magneto ignition which is self powered. The ignition wire is simply grounded to the chassis by the M terminal in the OFF position to shut the engine off..

Do not allow any power into that black ignition wire. It will fry the ignition coil in a second.

Garry

Edited September 9, 2015 by gwest_ca

[paul lemelin 0]

Okay that being said!  how do I test the coil to see if it is fried?  I have continuity from positive to neg terminal.

[gwest_ca-(File Mod) 11,046]

I'm thinking you have battery ignition instead of magneto ignition and that makes the 8362 switch wrong. Good thing is you can't harm battery ignition with a magneto switch. The bad thing is the 101876 switch is no longer available.
http://www.wheelhorseforum.com/files/file/1209-wh61-90-134-ignition-switches-1972-modelspdf/

Battery ignition uses an external coil with a (+) and (-) terminal and suspect that is where you are getting the continuity from positive to neg terminal.

1969-1971 GT-14 used the 8362 switch with breakerless ignition
1972-1973 GT-14 used the 101876 switch with battery ignition. The online parts lists have this one wrong.

If it was mine I would add a starter solenoid and a common 103990 ignition switch. That way it is like the later models using parts that should be available forever.
http://www.wheelhorseforum.com/files/file/264-tractor-1979-c-series-wiring-detailed-kohler-poweredpdf/

Garry

 

[paul lemelin 0]

I'm thinking you have battery ignition instead of magneto ignition and that makes the 8362 switch wrong. Good thing is you can't harm battery ignition with a magneto switch. The bad thing is the 101876 switch is no longer available.
http://www.wheelhorseforum.com/files/file/1209-wh61-90-134-ignition-switches-1972-modelspdf/

Battery ignition uses an external coil with a (+) and (-) terminal and suspect that is where you are getting the continuity from positive to neg terminal.

1969-1971 GT-14 used the 8362 switch with breakerless ignition
1972-1973 GT-14 used the 101876 switch with battery ignition. The online parts lists have this one wrong.

If it was mine I would add a starter solenoid and a common 103990 ignition switch. That way it is like the later models using parts that should be available forever.

Garry

 

[paul lemelin 0]

Gary I have an external coil.  I also have an external coil,  and a set of points.  I have a 4 pole pto switch.  I am thinking that I may have a bad coil.  No spark  I have the wiring diagram from wheelhorse with my owners manual and they show 8362.  model is 1-0502  it has a 15 amp charging system ignition is battery   The tractor is excellent except for this.  I'm totally confused.

[gwest_ca-(File Mod) 11,046]

For battery ignition you require an ignition switch with an I (eye) terminal which supplies battery voltage to the coil (+) terminal in the RUN and START key positions.

The 8362 switch with the M terminal will not do that and is for the older GT-14's that used a K321S-60125b engine with magneto ignition.

The way to check the battery ignition is to make sure you have battery voltage at the coil (+) terminal. Once you have that check the voltage at the coil (-) terminal. Remove the spark plug so you can turn the engine over with your hands by turning the flywheel clockwise. When the points are closed you should have 0 volts at the coil (-) terminal. When the points are open you should have battery voltage at the coil (-) terminal. This cycle happens once for every 2 turns of the flywheel. The instant the points open you should get one spark. 

If you get a steady 12 volts at the coil (-) terminal the points are not closing or the contact surfaces are oxidized so when they are closed there is insufficient electrical contact. Polish and clean the contact surfaces.

If you do not get 12 volts at the coil (-) terminal the points are not opening or there is a short to ground. The condenser at the coil should be wired to the coil (-) terminal also. They can short and prevent the voltage from cycling. Remove the condenser wire from the coil (-) terminal and see if that allows the voltage to cycle as you turn the engine.

Let us know what you find.

Garry

Edited September 9, 2015 by gwest_ca

[paul lemelin 0]

Gary :  Just to keep you updated.  I went out and bought a new switch   5 post 4 position switch number 101917 which has been changed to a 92-6785.  The
tractor started right up just fine!   Only one little problem;  the pto won't kick in and the tractor runs on accessory.one wire must be in wrong postion on the pto.
  I want to thank all you guys for chimming in to help me.  I think my headache is over.  We'll see.

Edited September 10, 2015 by paul lemelin
misspelling

[953 nut 55,261]

Your PTO is not supposed to operate in the "Run" position, you have to go counterclockwise one click then it will engage the PTO if switched on. A generic switch won't do this for you. You could cobble something together that would work temporarily, but you need to get the right switch.  

[paul lemelin 0]

this is an updated wheelhorse switch from a toro dealer.   what do you say is the correct switch?

[gwest_ca-(File Mod) 11,046]

The 101917 and 92-6785 is almost the same as the original but it is a light duty switch that requires a starter solenoid. Here are the wiring diagrams for it. Also note that the 1-0502 model number for the 1972 Bronco 14 is not correct. Should be 1-0422 or 1-0423.
You can also get a switch connector body with the 5 wires in it to add to your harness for a neater installation. Stens and Napa both have them.

If you want a better copy download this file
http://www.wheelhorseforum.com/files/file/60-tractor-1972-bronco-14-charger-10-charger-12-da-om-wiring-snpdf/

Garry

Edited September 10, 2015 by gwest_ca

[Keith Townsend 0]

Wireing schematic gt 14 wheelhorse

[pfrederi 17,741]

You should open a new thread, get more help.

Check the manuals section her for all GT 14 manuals we have.

 

This is the wiring diagram

http://www.wheelhorseforum.com/files/file/3476-tractor-1971-gt-14-da-wiring-snpdf/

 

 

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