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Farmall & IHC Tractors Discussion Forum
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Mccormick IHC AOS6 questions

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Anthony Gillam

01-27-2005 22:19:34




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G'day,

I am from Western Australia and have just become the proud owner of an AOS6(princely sum of $45Aus).

Like most people I thought that it would be a piece of cake to get the beast going and to restore it to former glory. Yeah I know , stupid idea.

My problems are the following:

1. The previous owner took about 1 minute to start the tractor and after a bit of tweaking it ran sweet with no smoke or knocks .I can't get it to start other than the odd 3 or 4 seconds of firing before it stops. Using Airostart has no better result even though it should do.

2.The carbi floods without the slightest hesitation even though I pulled it to bits and made sure it was functioning.Is there a solution?

3.Wiring looks to be functioning, distributor cap has previously been cracked and glued together but I pulled a spark plug lead and copped a boot when the motor was cranked so appears to be working. Should I replace disi cap anyway?

4. Can't seem to find neutral even though can apparently change gears using gear shift lever. Does the thing have to be in neutral to start?

5. Can I pull start it using a vehicle and if so what should I have the gears in , is there a high/low range ?

Sorry for the size of the message but I am really keen to get it going and it is frustrating not being able to.

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Pete M

05-29-2006 01:46:43




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 Re: Mccormick IHC AOS6 questions in reply to Anthony Gillam, 01-27-2005 22:19:34  
I read your story with interest. I have just bought an AOS-6 on ebay for slightly more than you paid, and am just sorting out the missing bits and bodywork. Would love to correspond with you if that suits. Regards, pete



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Anthony Gillam

01-28-2005 16:34:59




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 Re: Mccormick IHC AOS6 questions in reply to Anthony Gillam, 01-27-2005 22:19:34  
G'day again,

thanks for the suggestions (all of them).

I will have a try at what is suggested.

NIG ,the reason I pulled the carbi apart was because it was flooding so the obvious thing was that the float was stuck. From what I now read it would appear that the choke is the enemy of starting the old girl and that's why it flooded.

The previous owner did the old trick of getting the tractor going before I arrived so she was warm and willing to start.I don't mind , for the price she is a bargain even if I never get it going.(my kids love it)

I might not know what I am doing but I am willing to give it a try .

Thanks again,

Anthony

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brtx

01-28-2005 16:03:52




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 Re: Mccormick IHC AOS6 questions in reply to Anthony Gillam, 01-27-2005 22:19:34  
ether can be used.you just have to be careful not to use too much.never spray it directly into the carb intake on a flooded engine.it will get into crankcase and can explode blowing gaskets or even bending oil pan or valve cover .have heard it can really cause a loud backfire or explosion in the engine if not used right.would guess thst is what causes bent rods etc.remember it is a starting aid not a fuel to run on.my 2 cents

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CNKS

01-28-2005 07:28:21




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 Re: Mccormick IHC AOS6 questions in reply to Anthony Gillam, 01-27-2005 22:19:34  
I agree with Andy about "Mr, N.I.G." he hasn't been too polite lately. One thing that Andy eluded too, the carb floods very easily. Depending on what the weather is like in Australia (summer there now, isn't it?), try to start it without the choke, and use the choke only to keep it running. When it starts, pull the choke out 1/3 to 1/2 and adjust it until it runs smooth. Should be able to run without the choke in a minute or so, longer if you want to drive it right away. Those engines are often hard to start if they don't fire on the 1st few revolutions, due to flooding. I believe the carb has a drain plug, drain it after it floods, or try again in about an hour. Your cap may be ok, but replace it anyway. The carb may need to be cleaned throughly and a new kit put in -- but it should start.

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Andy Martin

01-28-2005 06:35:14




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 Re: Mccormick IHC AOS6 questions in reply to Anthony Gillam, 01-27-2005 22:19:34  
Mr. N. I. G. seemed to give you some good pointers, but I can't understand why he wanted to insult you. Have you crossed him in the past? The people with a real problem are those who are too stubborn to ask for help.

And he obviously does not know much about starting fluid. I use it regularly as a help when I'm in a hurry or too lazy to fix something. Have never ever damaged an engine with it and have used lots of cans including continued short squirts to keep an engine running to assess it's condition. I've heard of people bending rods in light duty engines but I think the worst thing you will do to a Farmall is wash the cylinder walls and cause some scoring.

Don't be afraid of a repaired distributor cap if it was working. But they are cheap to replace.

You probably did not put the carburetor together wrong, may just have some trash under the float seat. But some of these tractors will drip gas out the weep hole every time you srart them. If the carb does not sit and drip gas out it may be OK. Still, after things are disturbed, a little broken piece of varnish can hold the seat open. I like to cut the fuel line and put an automotive type in-line fuel filter to catch everything the sediment bowl misses.

The danger of having the tractor stuck in gear, if it is, is that you can easily get it into two gears.

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Novel Idea Guy

01-28-2005 05:36:42




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 Re: Mccormick IHC AOS6 questions in reply to Anthony Gillam, 01-27-2005 22:19:34  
Sounds like you've got PEBSAS, problem exists between seat and steering-wheel. If the previous owner could start it, you can to. You just have to do what he did, follow the same procedure.

First off, if that "Airostart" stuff is starting fluid, ether, THROW IT AWAY! You're gonna blow the engine up. You don't need ether to start an engine on petrol/gasoline/crocodile juice/whatever you Aussies call it :)

You tore the carburetor apart. Why? The tractor ran fine when you bought it. It's highly unlike the carburetor wore out or got that dirty between then and now. Do you know how to work on a carburetor? Its flooding now, so that means you put it back together wrong. The float is set wrong, and isn't closing the flow of fuel off when the carburetor bowl gets full.

If the distributor cap is broken, replace it. Come now, that's just common sense... But, if it ran with the broken cap before, and you didn't break it further, it should run with the broken cap now.

What do you mean, "can't find neutral?" There is no specific notch for neutral. Neutral is just "not in a specific gear." If you knew that, then the shifter rails could be worn and the tractor could be stuck in a gear. AOS6 is probably similar to the OS6 in the USA, which is basically a W6, which is basically an M. You'll probably want to pull the shift lever off and make sure all the rails are aligned for neutral. If it still won't roll with the clutch out, then you've got more serious issues.

Above all, don't start tearing into things without doing your homework first.

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Geoff NY

01-28-2005 04:49:59




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 Re: Mccormick IHC AOS6 questions in reply to Anthony Gillam, 01-27-2005 22:19:34  
Hi Anthony, what a find! ? #2 try a small tank with a gas line to the carb (clean). Clean the screen at the carb inlet. Clean out the carb again. (most of the time small bits of rust and crud get pushed through after they have been sleeping for years) ? #3 definately replace the cap, and any associated parts that look iffy. ? #4 The end of the shift lever wears out and they tend to hang up in gear. Pull it, aline the notches on the shift rails, and build thetip of the lever back up (weld it) ? #5 If you tow it, use 3rd or 4th gear, but fix that shifter first. Have fun with the old girl. We had one on the farm when I was a kid, great tractor! Geoff NY

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