B6000 not starting

[bakeroldfolks2]

Well I finally got the little gal back together it turns over nice but I'm having a problem with the glows , has a new battery installed but when I try to heat the plugs all I get is 8to9 volts to them. I read that it is supposed to be 10 1/2 them to heat up I've replaced the glow control and it still the same anyone have an idea what is wrong with it thanks Bruce

 

[Russell King]

Have you replaced the glow plug indicator (that is a resistor also)? I think that would drop the voltage if it was breaking down.

You can also check the voltage to the glow plugs when the tractor is cranking. The glow plug indicator is out of the circuit in that situation. That might confirm or confuse the situation since the starter will be dropping the voltage. So you can not push the clutch down, turn the key to the crank position and read the voltage, then it should be the same as the battery voltage.

 

[bakeroldfolks2]

I measured the voltage from the controller to the glows in the heat position it's 8or9 volts the voltage from the switch to the controller is 12 I've replaced the controller and it was the same as the old one

 

[Russell King]

I measured the voltage from the controller to the glows in the heat position it's 8or9 volts the voltage from the switch to the controller is 12 I've replaced the controller and it was the same as the old one

That is what you already stated in your first post.

 

[bakeroldfolks2]

My second post was after I changed out the glow controller just saying that it didn't change anything with it sorry for the confusion

 

[Russell King]

I am not sure what you are calling a glow controller but there is probably a few things involved, none of which I would call a controller. Please explain what you mean by controller.

Below is a diagram of the dash and electrical parts. There is a wiring harness, a key switch, a starter switch (that is also used to power the glow plugs I think) a lamp (glow plug indicator), and then the glow plugs (not showing below).

The only intentional voltage dropping device is the lamp so it is the most likely device that is defective. The wiring is a bit odd between the starter switch and the glow plugs so you might verify that is all properly connected so the indicator is in the path when heating the glow plugs but removed from the path during starting (but the glow plugs are powered in both heat and start position).

You can remove and test the glow plug indicator to see what voltage will come out of the indicator when connected across 12 volts.

 

[bakeroldfolks2]

Thanks,my manual calls the indicator a controller, I have all the manuals for it including the loader. From the switch to the indicator I get 12v on the output side I get 11 with the new one or the old one, when I try to heat up the glows they only are getting 8to9 volts. I've checked the wiring and everything is good. I just want to get it started it's been down for 8 years now lol

 

[North Idaho Wolfman]

I measured the voltage from the controller to the glows in the heat position it's 8or9 volts the voltage from the switch to the controller is 12 I've replaced the controller and it was the same as the old one

What your stating is 100% normal.
The coil / indicator (what your calling a controller) is a resistor and and it "eats" voltage.
If the indicator is glowing when you preheat the glow plugs it's working and if the glow plugs are working then everything is fine.
Have you tested the 2 glow plugs and make sure they are good?

 

[bakeroldfolks2]

Well neither one of the indicators will get hot the new or old ones I used to be able to lite a smoke when it was running around 8 years ago lol

 

[bakeroldfolks2]

How do you test the glow plug?I guess I'm going to have to go back thru everything again

 

[North Idaho Wolfman]

Ohm meter

 

[bakeroldfolks2]

What should the readings be i know no resistance is bad, guys this is my first time with a diesel please be patient lol

 

[bakeroldfolks2]

I haven't put the bucket on yet because it's still in the shop no room for it

 

[North Idaho Wolfman]

They should be about 1.2 Ohms usually when they go bad they will go to one extreme or the other.

The WSM is your friend for all repair info.

Look at the top right of the screen at the envelope.

 

[Russell King]

Thanks,my manual calls the indicator a controller, I have all the manuals for it including the loader. From the switch to the indicator I get 12v on the output side I get 11 with the new one or the old one, when I try to heat up the glows they only are getting 8to9 volts. I've checked the wiring and everything is good. I just want to get it started it's been down for 8 years now lol

What your stating is 100% normal.
The coil / indicator (what your calling a controller) is a resistor and and it "eats" voltage.
If the indicator is glowing when you preheat the glow plugs it's working and if the glow plugs are working then everything is fine.

@North Idaho Wolfman - the OP seems to be saying that the voltage OUT of the switch is 12 volt (normal to me), then OUT of the glow plugs indicator the voltage drops to 11 volts (normal to me), but then at the glow plug INPUT rail the voltage is only at 8 to 9 volts (that seems abnormally low to me).

Yet you say it is “fine”. What would drop the voltage between the indicator and the glow plug rails? As far as I know there is nothing but wire between those two points. I could see corrosion or bad wire dropping the voltage down past the indicator but that seems like a low voltage at the top of the glow plugs.

Am I incorrect in that or is everything NOT fine?

 

[North Idaho Wolfman]

@North Idaho Wolfman - the OP seems to be saying that the voltage OUT of the switch is 12 volt (normal to me), then OUT of the glow plugs indicator the voltage drops to 11 volts (normal to me), but then at the glow plug INPUT rail the voltage is only at 8 to 9 volts (that seems abnormally low to me).

Yet you say it is “fine”. What would drop the voltage between the indicator and the glow plug rails? As far as I know there is nothing but wire between those two points. I could see corrosion or bad wire dropping the voltage down past the indicator but that seems like a low voltage at the top of the glow plugs.

Am I incorrect in that or is everything NOT fine?

It's fine, as long as the glow plugs are good.
If just one of the glow plugs is shorted it will mess with the measurements.
The glow plugs and the indicator change resistance when they heat up so numbers change if they are working right.