[Farmall] Engine Overheating

[szabelsk at gdls.com]

First possibility is partial blockage of the radiator from crud settling 
in the bottom or plugging the tubes (some or all).

Second would be crud in the radiator hoses. 

Third could be crud in the block itself.

Fourth could be a head gasket where exhaust is getting into the coolant. 
What you think is overheating is actually the exhaust pushing the coolant 
out of the radiator. Also makes the coolant hotter as well.

If you remove the lower radiator hose you should be able to check for crud 
in the bottom of the radiator with a homemade bendable scoop of some kind, 
or a turkey baster with an extension hose.

On the block, unbolt the gooseneck and you should be able to get somewhat 
of a look into the block. (When I did this on my Cub, I found what looked 
like two pieces of welding rod in the opening.)

For cleaning the radiator, you can try flushing with plain water (garden 
hose). Remove the drain plug for the radiator and the lower radiator hose 
to get as much unrestricted flow as possible. Let it run into a tub or 
large bucket so you can see what comes out.

For cleaning the block disconnect the upper hose from the radiator and 
push the hose into it. With the gooseneck removed, you should get a good 
flow. Again, try to catch it in a tub or large bucket and see what's 
coming out.

If there is any crud, and if it's been there for some time, it could be 
pretty solid and might take some doing to get it all out.

Carl Szabelski



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