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Farmall & IHC Tractors Discussion Forum
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overheating

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art gallagher

02-26-2006 14:43:51




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i have a farmall cub with no waterpump. how do you keep these tractors cool?????
i'm new at this! thanks




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John M

02-26-2006 15:26:55




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 Re: overheating in reply to art gallagher, 02-26-2006 14:43:51  
How much coolant are you putting in it? These are easy to push water out if its overfilled,but if it is indeed running hot,then you either have a dirty radiator or a dirty system.How clean are the fins on the rad?



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Janicholson

02-26-2006 14:57:21




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 Re: overheating in reply to art gallagher, 02-26-2006 14:43:51  
If it overheats, it is probably a plugged up radiator. The Cub, and other early tractors used thermo siphon cooling flow. The principle is that hot coolant expands and rises (in the block/head) and flows to the top of the radiator where it displaces cooler coolant which sinks down into the bottom of the block. It is not sophisticated, but there are no mechanical pumps. Crud and sediment/corrosion block the passages in the radiator, and/or junk builds up in the block.
Drain the coolant. Use a hot water garden hose to push water backward through the system (radiator and block) and out the block drain and bottom hose attachments. Then use a good system flush product, and follow the directions. Check all hoses for internal breaks and replace as needed.
Make sure the ignition point gap and (then) timing are correct, they can contribute to heating.
JimN

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