9n ignition switch left on

davidbrodhead · Jan 10, 2018

I left my ignition switch on by mistake. Battery was dead when I discovered my error. What has been damaged ?

Tony in SD · Jan 10, 2018

More tan likely the points. Maybe the coil too.

Richard from SE AZ · Jan 11, 2018

If your tractor still has the cut out relay, take out the points unit and replace it with a diode ( bridge rectifier ). I did that to mine about five years ago and even after leaving the key on a number of times when tinkering with it, I have never had a dead battery. The diode only allows current in one direction. I will post a picture tomorrow of a spare I set up and have not had to use.

Bob · Jan 11, 2018

The "cutout" in the charging system has NOTHING to do with draining the battery on an otherwise properly functioning tractor that has suffered the misfortune of it's operator being careless/forgetful and leaving the switch on.

At that point (engine stopped) it should have already disconnected the generator from the battery.

Tony in SD · Jan 11, 2018

I agree with Bob, nothing to do with the regulator if it is operating properly.
I?m talking about the ignition points in the distributor not relay contacts in the regulator.

Tim PloughNman Daley RIP · Jan 11, 2018

Points are probably burned up -pull distributor and rebuild, do not need any fancy components, OEM stock is just fine. While at it get battery tested, replaced if necessary, and fully charged if still good.

Tim Daley(MI)

cowdog · Jan 11, 2018

Why don't you just charge the battery and try and start it before you start throwing parts at it.

Bruce (VA) · Jan 11, 2018

As cowdog said, charge the battery (see tip # 60) & try to start it. If it doesn't start see, tip # 38.
75 Tips

Clifford B. · Jan 11, 2018

(quoted from post at 05:25:44 01/11/18) Why don't you just charge the battery and try and start it before you start throwing parts at it.

My thoughts also, been there myself and it fired right up after a recharge.......

HFJ · Jan 11, 2018

(quoted from post at 15:13:20 01/11/18)

(quoted from post at 05:25:44 01/11/18) Why don't you just charge the battery and try and start it before you start throwing parts at it.

Click to expand...

My thoughts also, been there myself and it fired right up after a recharge.......

same here, altho in my case, it required swapping out the battery. it was marginal to begin with, and that little oversight killed it.

that was in my WD, which has a toggle switch for the ignition. that's on my list of things to replace this winter. i figure i'm less likely to leave a key in the ignition than to fail to notice the position of a toggle.

tractorguy2 · Jan 11, 2018

Leaving the key on will sometimes ruin the points. If it has been converted to 12 volt. It can burn out the diode in the Delco alternators.

I would just charge the battery, try to start it and see what works/ doesn't work.

davidbrodhead · Jan 11, 2018

I lucked out. Charged dead battery all day. Tractor instantly fired up like nothing had ever happened. I guess I have used up all my luck for 2018 !
Thanks for everybody's input.

Bruce (VA) · Jan 11, 2018

Yep, you're a lucky man. If your tractor is 12v, you are a very, very lucky man. Go buy a lottery ticket!

HFJ · Jan 11, 2018

mine's 12 volt as well. how lucky are we?

davidbrodhead · Jan 11, 2018

mine is a 6V system

Tim PloughNman Daley RIP · Jan 14, 2018

Just because you put a charge on the battery does not mean it is good. If it isn't, that charge won't last for long. If battery won't sustain a charge under load, then the generator can't keep it charged and you will just be running the tractor directly off of it, until it wears it down. You need to get the battery checked for specific gravity. You can buy a test hydrometer at any auto parts store, or, take the battery in to one or better yet, a starter/alternator shop and have it bench tested by them.

Tim Daley(MI)

dactura · Jan 16, 2018

This "weak battery" thing happened to me a few days ago. I was at about 11.2 volts. It would crank over, but not fire. Thanks to all the gurus harping about "spark", I put a starter pack that raised the voltage to about 11.6 and it started right up. Left it on a charger for a few hours and now the problem is solved.

9n ignition switch left on

davidbrodhead

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Tony in SD

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Richard from SE AZ

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Bob

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Tim PloughNman Daley RIP

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