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Sealent in leaky radiator

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Mike from Cny

09-06-2005 21:13:01

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I"ve been having problems with the Radiator on my "43 JD "A" with the thermo-syphon cooling system. I still have some small persistent leaks coming from the core. Has anyone ever tried of that Bar"s stop leak or anything like that in an application like this and does it work? Its driving me nuts and I cant afford to buy a new core yet.

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DigDugNC

09-07-2005 18:22:31

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Re: Sealent in leaky radiator in reply to Mike from Cny, 09-06-2005 21:13:01

Alumi-Seal works great! It's what $3-$4 bucks at the Auto Zone. It's worth trying before tearing all into the radiator/motor. Used it in my 80'F-100 w/300 straight six. I don't drive her much mostly haulin wood, mulch, or the trash. Kinda like some people use their tractors huh! That was six months ago. Water level hasn't changed yet, and I drove it to work today (only vehicle with gas, but thats another story).

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Mike form cny

09-07-2005 19:49:23

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Re: Sealent in leaky radiator in reply to DigDugNC, 09-07-2005 18:22:31

A big thing I was wondering is how effective it would be in a cooling system that wasnt preassurized and doesnt have a water pump to circulate the coolant. I'm casually looking for a new core or a whole radiator but for now, money's not too abundant and I just want to get it to the point where I can use it.

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thejdman01

09-07-2005 13:31:39

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Re: Sealent in leaky radiator in reply to Mike from Cny, 09-06-2005 21:13:01

Stuff called irontite puts bars to shame. a thermostat is a restriction device. barrs works by clogging the hole also sometimes clogging heater cores (not on a tractor unless has a cab) and thermostats. This coats the system not cloggs. Ceramic Motor Seal

More Protection, More Power

Ceramic coat your cooling system - seal leaks in the radiator and minor cracks in the head and block.

Seals porosity in the cooling system, increasing the power of the engine.

Coats the engine and inhibits the formation of rust during normal operation

Inhibits salt water corrosion in marine engines

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buickanddeere

09-07-2005 08:46:53

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Re: Sealent in leaky radiator in reply to Mike from Cny, 09-06-2005 21:13:01

The only lasting and true repair is to re-core the rad. Wonder glob dumped into the rad is just a temporary patch to finish the planting or harvest.

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Keith-OR

09-07-2005 08:43:01

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Re: Sealent in leaky radiator in reply to Mike from Cny, 09-06-2005 21:13:01

Go to the drug store and get some Water Glass
(Sodium Silicate) pour into radiator, run engine untill it is hot, run for about 1 hr. Let cool down and drain system. Be sure to Drain block also...HTH Keith

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CB in central NY

09-07-2005 08:16:45

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Re: Sealent in leaky radiator in reply to Mike from Cny, 09-06-2005 21:13:01

I"ve used something called AlumaSeal on two radiators: a Ford 2910 tractor and a Ford Escort automobile. Both worked very well. You just get the system to operating temperature and pour the powder in.

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Allan in NE

09-07-2005 05:36:35

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Re: Sealent in leaky radiator in reply to Mike from Cny, 09-06-2005 21:13:01

Hi Mike,

I've had to seal two radiators this summer and I used Barr's on both of 'em with very good luck.

The secret is to get the tractor good and hot before pouring in the sealer. Then after adding the Barr's, run the outfit at least a couple of hours under heavy load to keep 'em good and hot. Be sure and shake that jar up good before you pour it in the radiator.

The stuff seals by it's hitting that "relatively" cold air.

Allan

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JDknut

09-07-2005 04:34:04

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Re: Sealent in leaky radiator in reply to Mike from Cny, 09-06-2005 21:13:01

Powdered black pepper will work for that. Pour it into the radiator, then run it to circulate it. I have seen it done with a Cat-engined fire truck radiator that the fan went through at speed. We pinched shut the damaged radiator tubes around the hole in the radiator, put in a half pound of black pepper and then filled it up with water, then drove 70 miles an hour on the Interstate for 2 hours to get the truck the rest of the way to the place where we were having some work done on it. Worked like a charm, but of course then we had to add a radiator to the bill there for the tune of $600.00. I wouldn't have believed it if I wasn't actually there to see it in person. The pepper works on the same principle as "bar's Leaks", which, by the way, has been used to stop leaks in nuclear submarines.

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Jerry Cent. Mi.

09-07-2005 04:48:09

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Re: Sealent in leaky radiator in reply to JDknut, 09-07-2005 04:34:04

Bars leak is good for large core radiators but bad for heater cores on cars. Pepper is tempory.

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JDknut

09-07-2005 09:15:07

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Re: Sealent in leaky radiator in reply to Jerry Cent. Mi., 09-07-2005 04:48:09

Yeah, the pepper is a "get-home" trick, that is what we used it for. But still handy to know in a pinch. I never used Bar's Leaks but did see documentation that it was used to make a temporary repair to a leaky condenser on the USS Nautilus, the first nuke sub, and it worked well, getting them under the Arctic ice cap and back.

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Robert E. Smith

09-08-2005 09:05:36

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Re: Sealent in leaky radiator in reply to JDknut, 09-07-2005 09:15:07

I cant help but wonder is it a good idea at all to use a stop leak in a Thermo system?
I mean when it's really hot out and your working it hard the Thermo Systems are close to being pushed to there limits sometimes! I know my Cub struggels with overheating sometimes when it hot and the grass is heavy!
Got to keep an eye on it at times, and it has a new radiator! so putting something in it that may restirct some coolant flow ? I dont know about that?
May be better off fixing right than taking a chance on overheating and causing engine damage! Whats cheaper a radiator recore or an engine overhaul! But I do understand! Been on the short end of funds myself! and have done things I shouldn't have just to get by.

Bob

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