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IH 444 no power to glow plugs

Tony Blake I have an IH 444 (USA) with no current to the switch to the glow plugs. The engine will turn over. I have been going thru the various connections and wires in the dashboard which are very dirty but have yet to solve this problem. Any suggestions?
Thanks
Tony

thepumpguysc Its a very easy system..battery, switch, and plugs..
Worse comes to worse..make you own with a push button or on/off toggle..

Bill Burge Dont wire plugs staight to a switch or you will burn them out in less than a second !!

There is a glow plug on the dash, is this still ok, has a heavy coil to reduce power, may be burnt out

also wiring is a bit funny, theres two separate wires going to dash mounted plug, cant remember the set up, but is critical or number four plug burns out straight away if wiring is wrong

Bill Burge Dont wire plugs staight to a switch or you will burn them out in less than a second !!

There is a glow plug on the dash, is this still ok, has a heavy coil to reduce power, may be burnt out

also wiring is a bit funny, theres two separate wires going to dash mounted plug, cant remember the set up, but is critical or number four plug burns out straight away if wiring is wrong

Ed Vessels I have Int.444 and need to know follow up about glow plugs.
BigT The stock loop type glow plugs that come in the IH 444 can be a major pain and you MUST run a resistor type coil between the button/switch and the glow plugs. The reason being is that the glow plugs operate on 9 volts and not the 12 volts that comes off the button/switch. The 12 volts will cook the loop type glow plugs that come in the 444. Now here is my fix that works like a dream and will eliminate all problems forever.
Bosch makes a glow plug that came in a Mercedes Benz. Bosch part # 80035, This is a pencil type glow plug which will far outlast a loop style. Bosch has this glow plug listed as an 11 volt plug but do not sweat that. These new glow plugs will not run in series meaning if one does burn out the other three will still work. Install is simple, easy and quick.
Remove all the old glow plugs. Save the ceramic insulators and the copper ground wires as they are hard to come by and you never know when you might need them at a latter time. Remove the ground wire that goes from the last glow plug to the block and discard. Install the new Bosch glow plugs and make jumper wires that goes from one plug to the next. Connect the main feed wire to the first plug, install the retaining nuts and wa-la you are done. You do not need an additional ground wire as the tractor’s block will act as the ground.
You will be so happy with this set up that you make get your wife to bake me a cake. ( I LOVE FOOD!) J
I hope this helps!
Big T
Facebook: Pear Orchard Farms

Didier I've followed BigT's instructions and I agree, it was easy and it works wonderfully! It's such an improvement that I can now start the engine easily even at -20°! (Canada here) Can you imagine? I've been struggling for years with those damed glow plugs and now all my problems are solved. One thing, I kept the glowing resistor in the dash, so I guess the plugs are running at 9 volt but it doesn't seem to cause any problem. They just take 12 seconds to warm up instead of 8 as advertised. No big deal. Thanks BigT!


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