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Farmall & IHC Tractors Discussion Forum
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A Boiling Noise

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NYVINES

08-29-2007 17:36:45




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Just a simple question about the thermosyphon. When I shut off the A I just finished restoring I hear a boiling noise in the engine. It does this every time. It has been well over 80 degrees out while I have been tuning it in. I have been running this tractor for about a week. Is this noise normal?

Thanks for all the help along the way guys.

Jim - Bella Vista Vineyards




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Gene

08-30-2007 18:17:06




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 Re: A Boiling Noise in reply to NYVINES, 08-29-2007 17:36:45  
Thermosyphon systems have a tendency for crud to settle in the lower portions of the cooling system. And particularly around the #4 cylinder. If you have not flushed the block - suggest you do so. Build up of crud will cause the cylinders to overheat and score.



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Hugh MacKay

09-01-2007 13:17:04




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 Re: A Boiling Noise in reply to Gene, 08-30-2007 18:17:06  
Gene: They bubbled and gurgled from the day they were brand new, if shut off hot enough. Water temperature actually rises after the fan stops.

Yes, I agree crud may make them worse.



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Hugh MacKay

08-29-2007 20:29:48




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 Re: A Boiling Noise in reply to NYVINES, 08-29-2007 17:36:45  
Jim: You can try idling it 2-3 min. should stop much of your bubling. You will never eliminate it and if you work it hard enough it will bubble in spite of what you do. This is quite normal, I'm certain my Super A has been doing this since 1972, and very likely since 53. It will still lug with my 130 or 140 and they should be more hp.



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georgeky

08-30-2007 06:12:28




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 Re: A Boiling Noise in reply to Hugh MacKay, 08-29-2007 20:29:48  
Hugh, the first time I noticed that shortly after buying my C I was all geared up to tear things apart , and gramps said hold on here a minute George. These things do that. I thought he was nuts, but I listened to him and kept on running it. It has never had any heat related problem. Some folks don't realize that after shut down the temp rises higher than it was while running, and will cause the water to bubble and carry on some.

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Bob Kerr

08-29-2007 19:51:32




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 Re: A Boiling Noise in reply to NYVINES, 08-29-2007 17:36:45  
I just thought of something else. Be sure the water level is up and over the upper hose. If it isn't the water can't circulate and it will boil like crazy even at idle. I imagine you have it at the right level but thought I better mention it incase you haven't checked it since filling it up. I have seen a bubble in a head cause the level to get too low.



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ScottyHOMEy

08-29-2007 18:42:09




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 Re: A Boiling Noise in reply to NYVINES, 08-29-2007 17:36:45  
I'm kind with Bob on this one.

Has the tractor been working/moving around or just running in the garage getting it ready to work?

Some bubbling noise is not unusual but your description of a percing coffee pot sounds like a bit much. Try running the front of the tractor up an incline, if it hasn't aleady been on one. If there is a bubble at the back of the head or anywhere else, that ought to help clear it.

Also wondering what you have in there. Straight water will tend to make more bubbles than a water/anti-freeze mix, as it gets closer to its boiling point than does the solution of the two.

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georgeky

08-29-2007 19:30:01




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 Re: A Boiling Noise in reply to ScottyHOMEy, 08-29-2007 18:42:09  
Just loafing around it shouldn't do it, but I can tell you from hundreds and hundreds of hours on them pulling plows and disk and even mowing hay on hot days they will all perk a little. You get this when you don't have a water pump and run them hard. If he isn't working it hard there could be problem, but in tough field conditions it is normal on all I have ever been around.



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ScottyHOMEy

08-29-2007 20:04:32




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 Re: A Boiling Noise in reply to georgeky, 08-29-2007 19:30:01  
No disagreement from here. Bottom line, it can make all sorts of noises. If he's got the bubbles out, isn't overheating when he does work it hard (i.e., no serious bubbles and no serious crud buildup impairing heat transfer), and isn't losing coolant, I don't think there's a problem.



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georgeky

08-29-2007 18:03:50




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 Re: A Boiling Noise in reply to NYVINES, 08-29-2007 17:36:45  
That is normal. My C that I have ran for years perks just like a coffee pot. Check your coolant level on a regular basis as it does boil it away.



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Gene

08-29-2007 18:01:42




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 Re: A Boiling Noise in reply to NYVINES, 08-29-2007 17:36:45  
Not normal.

Did you flush out the block and lower radiator housing? If not you need to clean the crub out of the cooling system.



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georgeky

08-29-2007 18:07:10




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 Re: A Boiling Noise in reply to Gene, 08-29-2007 18:01:42  
Mine has done it for 30 years and never hurt a thing. It only does it after working it hard, but still does it. I overhauled it 10 years ago and boiled the block and head and it still does it. The old A and B I had done it as well. If you work them they are going to perk after shut down unless you cool it down first.



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Bob Kerr

08-29-2007 17:50:25




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 Re: A Boiling Noise in reply to NYVINES, 08-29-2007 17:36:45  
It may have an air bubble trapped in the head that makes a hot spot. I would think the head would be designed with an "upslope" for the hot water to move toward the radiator, but I am not familliar with the As. I do have 2 thermosyphon tractors and the F-12 only does it if worked very hard and is shut off too quick or if I accidently kill the engine, and my Kubota does it often on hot days. Maybe some one with an A will know more if they are prone to it.

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