Glow Plug Indicator

[gilbertmsg]

I have a TU 1700 and this afternoon, turned switch to heat glow plugs for a 10-15 second warm-up as normal. After about 5 seconds wire started to turn red and I then noticed very hot glowing red and shortly thereafter burnt indicator wire. What went wrong? and can I find a wire at local tractor shop?

 

[mopacman]

one thing it could be is a shorted glow plug or wire going to the glow plugs....Larry

 

[mit]

from what i was told the glo plugs do not short out. they will go into open and will not glow.so i will guess it could be faulty wiring to the plugs or the glo indicator wire just got blown like a light bulb. it could have reached its lifespan. the tractor dealer do not have the wire but u may be able to get a used part.try Used salvaged tractor parts including John Deere, Ford, Kubota and other Japanese tractor part dealers or Valley Power or Sparex Ltd is a world leader in the supply of Replacement Parts and Accessories for agricultural tractors and machinery.

 

[lens12]

Sparex only sells through dealers.

 

[gilbertmsg]

I have fairly new glow plugs so don't think they are bad. Can I use a piece of copper wire and bend it around the posts to achieve my goal. Thanks for the posts.

 

[mopacman]

No. The indicator is a resistor that drops voltage to the glow plugs. If you use a piece of wire you will burnup your plugs......Larry

 

[mit]

the glo wire is resistive it may be anything from 1 ohm to 3 ohms of resistance.plus it has the ability to increase in resistance as it gets hotter.it will limit the current to the glo plugs and prevent burn out.copper wire is too conductive to use.you need something like a tungsten alloy wire of the proper guage.get the part replaced is the right thing.

 

[mit]

the wire from inside a old toaster may do the trick.about 2 inches of the toaster wire element may work. or the wire from the old hot plates.

 

[mit]

i saw some element wire on this site:eBay lets know how u made out.

 

[gilbertmsg]

Obtained a piece of wire from old heat pump coil. Replaced on indicator and turned key to heat glow plugs. Wire turned red way to fast. I started checking and found that the first glow plug in line had the head broken off. I not sure what caused that. Took out broken plug and replaced with one of the old ones I had left when I changed these this spring. Turned key again and still the coil turned red very fast again. I stopped before burning the wire again. The new wire is not as large as the original equipment on the tractor. What could be causing the indicator to heat up so fast? Comments are appreciated.

 

[lens12]

The glow indicater is has a specific resistance so the glow plugs receive the correct voltage. You don't have the right resistance & may end up burning up the glow plugs. I recommend buying the correct part.

 

[mopacman]

The wire has to be the same dia and lingth. If it is smaller it will heath up to fast. If it is too big It will put to much voltage to the plugs and burn the plugs out. If the piece that was brokeoff was touching the engine that is what could of caused the probblem.......Larry

 

[mit]

disconnect the wire to the first glow plug and tape it so it does not touch any metal then try it.if it still glows it could be u have wire problems if nothing happens the problem is the wire may be too thin or the plugs shorted somehow.

 

[Mgrove]

Try a paper clip, wind it up on a pencil or whatever leave a slight gap between the turns, ( I'm thinking they are 10.5 volt glow plugs, if not order the correct resistor. check your voltage at the glow plugs with a digital meter when done. It should read 10.5 Volts DC. If voltage is lower, cut off some of the paper clip. If it's a little higher than 10.5, then don't leave them on quite so long. Boy am I going to catch flak for posting this.

 

[svcguy]

I would listen to Lens12 and purchase the correct part. It isn't just about the size and length of the wire, it's about wire composition, resistance and what it's designed to do. If you live in Mexico and don't need your glow plugs, fine, but if you are like the rest of us where they actually are needed, take Lens12 advice and replace it with the proper part.

 

[gilbertmsg]

I purchased a new/used glow plug indicator and still having the same problems. I was careful not to burn the indicator, $30.00, so I turned key to heat plugs, indicator heated way to fast again. I have not checked the voltage along the bar, but for sure I'm getting way to much juice going thru the indicator. I can start the tractor using a block heater, but have to rely on my starter more than I want. I'm not the best when it comes to anything electrical, so any comments would be appreciated.

Eddie

 

[lens12]

Have you unhooked both glow plugs & tried the switch to see if you have a short some place?

 

[colemanirr]

repaired my burned out glow plug indicater with steel welding wire, ruined four new glow plugs , bought another four new glow plugs and a new indicator, somtimes we learn the hard way

 

[Isekitrubl]

I'd also like to know what the part number is and where to get it. I am getting 12V to my glow plugs also. On Iseki a TL2300.

 

[Isekitrubl]

I found a new glow plug indicator at Southern Global Tractor - Home. They have it in stock for $63 plus shipping.