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Help 706 hard to start

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Glen Thibodeaux

06-04-2004 15:30:27




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The tractor will only start with starting fluid. How can I check the glow plugs to find out if they are working? Also how long should the glow plugs be used before cranking the engine? Is hard starting a sign of bad injector pump or clogged fuel filters? Thanks for you time and help.

Glen




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Big Al

06-06-2004 12:49:10




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 Re: Help 706 hard to start in reply to Glen Thibodeaux, 06-04-2004 15:30:27  
.Glen, I've had a 706 for 20 years and it is always hard to start. Just keep the glow plugs going for at least 30 seconds. Ours is a 63 model I think but its still everybody here's favorite tractor



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Chris Brown

06-05-2004 21:21:36




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 Re: Help 706 hard to start in reply to Glen Thibodeaux, 06-04-2004 15:30:27  
I have an old 560 diesel that'll start down around 10 below 0 with 2 good strong batteries and 2 or 3 minutes on the glow plugs.Don't ether a glow plug engine cause it'll blow up . And don't ether a 282 at all cause the head gasget is the only weak part of that engine and it will eventually get it to leaking. Everybody b!tches about IH's glowplug engines being slow to start,anybody ever run a CAT dozer from the 60's and 70's they're the exact same thing. I happen to like them.

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Hugh MacKay

06-06-2004 03:45:25




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 Re: Re: Help 706 hard to start in reply to Chris Brown, 06-05-2004 21:21:36  
Chris: Right on, some of these guys seem to forget how slow it was to fire up a gas start IH or a pup start Cat. Glow plugs were quite an improvement.



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Aces

06-05-2004 08:43:48




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 Re: Help 706 hard to start in reply to Glen Thibodeaux, 06-04-2004 15:30:27  
Glen I said this before and say again you can't check glow plugs unless you take them out and see that thay get red hot on the tip and make sure the tip is not burnt off some. I don't agree with the hard starting idea of these engines. I worked on them for many years and they are not hard to start if in good shape I know of one 560D that would start with out using the glow plugs, never did think that was a good idea. But if they start hard they need work. I don't go with the 2 12V batteries in parallel no way to be sure both are charging. If hard to start they need new batteries, new starter, new injectors, pump, deliever valve, velve job, new overhaul.

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Hugh MacKay

06-05-2004 12:18:43




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 Re: Re: Help 706 hard to start in reply to Aces, 06-05-2004 08:43:48  
Aces: I agree with you 100%. It is too bad some of these guys couldn't learn to start a 282 diesel as they were intended to be started, rather than the way they wished they started. Remember what preceeded glow plugs were pup starts and gas starts. They didn't fire up quickly either. We should have worn them all out years ago then these guys wouldn't have so much trouble in their life.



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Bill L Md

06-05-2004 07:18:00




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 Re: Help 706 hard to start in reply to Glen Thibodeaux, 06-04-2004 15:30:27  
Glen,Farmed with a 706 d for many years,coldest natured tractor I've ever seen could be workong with it all morning stop for dinner come out a little after 1 might start right up might have to hit it with either you just didn'nt know good luck.



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Hugh MacKay

06-05-2004 12:31:52




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 Re: Re: Help 706 hard to start in reply to Bill L Md, 06-05-2004 07:18:00  
Bill: Why in heavens name didn't you try reading the manual.



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casey

06-04-2004 21:06:02




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 Re: Help 706 hard to start in reply to Glen Thibodeaux, 06-04-2004 15:30:27  
i don't knoew if it's comman or not but the few tractors i've run with glowplugs you had to hold them for a couple of minutes. my neighbors 560 and 706 both at least 3-5 minutes, even when it's 70 degrees out. kind of a pain if you ask me.



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Hugh MacKay

06-05-2004 12:39:05




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 Re: Re: Help 706 hard to start in reply to casey, 06-04-2004 21:06:02  
Casey: No more of a pain than dealing with gas start or pup start and that is precisely what preceeded them. Try reading a bit on the evolution of the diesel. I guess IH should have built all their glow plug diesels so they blew up in 15 years, then we wouldn't have the pain of listening to you people who refuse to start them right.



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casey

06-05-2004 17:14:15




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 Re: Re: Re: Help 706 hard to start in reply to Hugh MacKay, 06-05-2004 12:39:05  
what is the proper way to start them? i grew up with a 706 with the 310, a 1256 and a 1086. never had a problem starting them. currently have a 706 gas, H, AC WC, and a AC WD. they all start just fine. not in any way mocking you, just really curious! never had to deal with glow plugs on those old ones until recently.

i left the farm in WI when i was 18 because there was no future and moved to SD. now i'm 25 and finally saved enough to start farming again in a state that's alot more farmer friendly! last year was my first encounter with a glowplug IH diesel. i didn't quite know what to do. i just wait for the light to go off in my pickup!

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Hugh MacKay

06-05-2004 18:04:27




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 Re: Re: Re: Re: Help 706 hard to start in reply to casey, 06-05-2004 17:14:15  
Casey: With a 282 diesel in either 560, 656 or 706, it's 30 seconds after lunch in summer, 45 to 60 on the first start of the day. Winter can be as much as 3 to 5 min. It takes good batteries and excellent cables. You do that and if all other components are working well, it will fire up with the best of them, and indeed as quick as any gas engine in warm weather.

In winter with any temps below 10F you will need a block heater. The 282 responds well to the circulating tank type heater. Just behind the injection there is a block drain, hook the heater between that and one of the ports on the head. The ones with recessed plug for using 1/2" drive for removal.

There are several wattages of these heaters. If you are starting every day 500 watt is best. I rarely ran my 560 and 656 in winter so I used 1500 watt. 2 hours before I wanted to use tractor I would plug it in, even at -30F.

Good old diesels, just part of the evolution from gas start and pup start then these and on to direct injection. Caterpillar used much the same system after they stopped using pups.

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Allan in NE

06-05-2004 06:20:42




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 Re: Re: Help 706 hard to start in reply to casey, 06-04-2004 21:06:02  
Hi Casey,

Sounds like some tired tractors and/or bad plugs/pumps/timing to me.

Although those old 12 volt glow plugs are pretty tough, 30 seconds is a very long time on a glow plug and overuse tends to burn them out.

I can't say for sure, but I would guess this is why the newer glow plug systems all went to a 6 volt plug used via a controller. Hotter, faster and they were cycled on and off.

I'm with you; they are a bit of a pain, but seem to get the job done.

Have a good one,

Allan

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Hugh MacKay

06-05-2004 12:29:00




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 Re: Re: Re: Help 706 hard to start in reply to Allan in NE, 06-05-2004 06:20:42  
Allan: I put 11,000 hours on a 560 and 15,000 hours on a 656 and can't say as I ever remember buying a replacment glow plug. I have used them as long as 3 to 5 min. on cold mornings. If I recall correctly the manual called for a minamum of 30 to 60 seconds even in warm summer weather.

The newer system you speak of is an entirely different glow plug and not intended for more than 20 seconds use.

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Allan

06-04-2004 16:04:07




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 Re: Help 706 hard to start in reply to Glen Thibodeaux, 06-04-2004 15:30:27  
Glen,

Pull all the connectors off all the plugs.

Take a test light and hook it to a 12 volt source; then one at a time touch each glow plug connector.

You should get a light at each one; if not, you've got a bad plug.

About 30 seconds of heat ought to make her pop if all the plugs are working.

Hope this helps,

Allan



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