Glow Plugs

afi · Post by **afi** » Mon Aug 05, 2013 5:13 pm

Couldn't get my 1010 started, tried everything and then bought all new glow plugs, started just once, started right up lots of black smoke when it started just like it always did before I replaced all the glow plugs. Now I have the same problemas before, turns over, never kicks, only white smoke. my glow plugs seem to all be bad again? the first time they went I assumed it was because I used ether, but not this time . What would make all the glow plugs burn out at once?? It is a 12 volt system, just one battery, the glow plug I took out is not even warm when I connect it to a battery. I hate to buy all new glow plugs and then find out they get fried angain. anyone have any Ideas? I did replace all the wiring but I have 12V at all the plugs.

Tigerhaze · Post by **Tigerhaze** » Mon Aug 05, 2013 5:46 pm

What brand of glow plugs did you buy? Read the thread below as it makes a difference:

http://www.jdcrawlers.com/messageboard/ ... glow+plugs

afi · Post by **afi** » Tue Oct 01, 2013 5:06 pm

Still having trouble with my glow plugs, use them once, work great and then find them burnt out on the next start up. I think I may have found the problem.....the john deere parts catalogue lists a connector part number AL-2976 T and an adaptor part # AT 16768T. Does anybody know if these are anything other than connectors possibly a resister that will keep me from cooking the glow plugs?

Post by **Lavoy** » Tue Oct 01, 2013 6:08 pm

Each plug should take 12 volts, no resistor needed. If they burn out that quick, something else is up assuming they are not defective glow plugs.
Lavoy

jtrichard · Post by **jtrichard** » Tue Oct 01, 2013 9:33 pm

may be a dumb question but how many batteries do you have in the 1010?

afi · Post by **afi** » Wed Oct 02, 2013 3:55 am

Just one battery, just 12 volts, 10 glow plugs so far, all cylinders. All I did was cut off the wiring harness and make a new one. The plugs look like the end has blown up, its bulged out. I checked with a meter only 12 Volts, and power goes on and off with the switch properly

gregjo1948 · Post by **gregjo1948** » Wed Oct 02, 2013 4:14 am

Did you rewire the plugs so they aren't on continuously? gregjo1948

whiteclipse16 · Post by **whiteclipse16** » Wed Oct 02, 2013 6:30 am

I agree with gregjo, sounds like the glow plugs are never turning off.
It could be something in the ignition switch went bad and the contact to turn on the glow plugs is welded closed.
I believe the glow plugs should only work when the key is turned counter clockwise and maybe in the start position.
Check for your 12volts like you normally do with the key in the "Glow plug" position.
Then put the key in the "Run" position and see if you still have 12volts. You shouldn't have 12volts in the Off or Run positions.

Post by **Lavoy** » Wed Oct 02, 2013 7:56 am

Good call, never thought of that one.
Lavoy

jtrichard · Post by **jtrichard** » Wed Oct 02, 2013 10:34 am

Yes on all the time is a good call and quite possible .. BEN the original switch does preheat to the left AND in the start position..... the only other thing i could think of is where are you getting the plugs? a lot of plugs for like GM are 6 volt i don't know if any of those will thread in just a thought

Tigerhaze · Post by **Tigerhaze** » Wed Oct 02, 2013 12:16 pm

I would also lean towards the bad ignition switch issue, although brand of glow plugs you bought may play a part in this. The OEM glow plugs are crap as mentioned in the previous thread I posted for you.

Also when you created a new wiring harness, did you wire the glow plugs in series or parallel?

jtrichard · Post by **jtrichard** » Wed Oct 02, 2013 10:58 pm

Tiger you cant wire them in series as they only have one terminal

Tigerhaze · Post by **Tigerhaze** » Thu Oct 03, 2013 4:01 pm

I agree that is true for a standard wiring harness but since he wired his own harness not sure if he kept the OEM wiring configuration- he could have wired between them.

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