Farmall A goes down on coolant

johndeeregreen · Aug 9, 2012

If I use it for a day it goes down about quart, it doesn't leak and it doesn't go into the oil, where the heck is it going?

THanks!

David G · Aug 9, 2012

Does it go down and stay, or keep going down?

johndeeregreen · Aug 9, 2012

(quoted from post at 02:46:20 08/10/12) Does it go down and stay, or keep going down?

keep going down

David G · Aug 9, 2012

Probably a head gasket, I would leave the cap loose and see
what happens.

johndeeregreen · Aug 9, 2012

(quoted from post at 02:51:31 08/10/12) Probably a head gasket, I would leave the cap loose and see
what happens.

Thats what I was afraid of, thanks a lot, I'll give it a try

Janicholson · Aug 9, 2012

If you fill the radiator,to the neck it will push some out as it warms up. This goes into the overflow pipe, and may not show much. They are supposed to be about two finger widths below the neck. If it is at that level, and goes down from there, it can be going into the combustion chamber. If the tractor makes light grey to white smoke, that is possibly the case. If it starts on 3 cyinders, then, after a bit runs on 4, it is pretty certain to be a leak into the combustion chamber. Causes are a bad head gasket, or cracked head. Gasket most likely. If you let it sit for 2 days, then remove the plugs and crank the engine (ign off) coolant will spray out of the leaking cylinder. Jim

gbs · Aug 9, 2012

if you completely fill the radiator it will run out the overflow tube as the water expands,your tractor uses a thermoflow cooling system and doesn't use a water pump or pressure cap,next time you use it if it's only a quart low don't add to it,run it then check after it cools a little it will probably be close to where you started

johndeeregreen · Aug 9, 2012

I"ll give that a try also,
There is never any white/ grey smoke

old · Aug 9, 2012

Well since it has no water pump and is a thermosphin (sp) system if you over fill the radiator yep it will do just as it is doing. As long as you get no water in the oil and you find that once it blows out the over filled and then stays at that level then your good to go.

gene bender · Aug 10, 2012

The system is not under pressure so leaving the cap loose wont do anything he is just overfilling the system

Russ from MN · Aug 10, 2012

As long as the cores are covered when it's cold that is enough. If it truly is leaking I would try some stop-leak.

johndeeregreen · Aug 12, 2012

Didn't have time to check anything out yet, had to use it the other day and it didn't want to start. Once I did get it going it was missing. So water is getting in a cylinder and getting the plug wet. Going to pull the head and see what it looks like. I'll have the head checked out and put a new head gasket on

Farmall A goes down on coolant

johndeeregreen

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David G

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johndeeregreen

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David G

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johndeeregreen

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Janicholson

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gbs

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old

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gene bender

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Russ from MN

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johndeeregreen

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