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Discussion Forum

Water pump ?

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05-20-2002 18:03:43

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have a 1945 b cultiverson but there is no water pump. the book says it works by hypersiphoning. how does this work and will it run cool enough when it gets hot out? has a 5 foot belley mower on it thanks for any help

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Hugh MacKay

05-22-2002 19:24:17

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 Re: water pump ? in reply to jack, 05-20-2002 18:03:43  
I have a 49 year old Super A, thermosyphon works well. Gurgles when shut down, always has. A few people have gone to expence of adding pump from a C123 engine. It is a lot less expensive to keep it clean. They pull very well, however I have never tried a 10' chisel plow.

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05-21-2002 04:16:21

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 Re: water pump ? in reply to jack, 05-20-2002 18:03:43  
If the engine block and head water passages are clean, and the radiator is clean and in good condition it will not overheat on the hottest day. Even if they are not completely clean, you will still have to work it really hard to have a problem. You will hear it gurgle when you shut it off and that is normal. You also need to keep a close check on the coolant level especially if it is not a pressurized system, as they tend to lose some coolant due to expansion and evaporation.

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05-21-2002 20:18:59

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 Re: Re: water pump ? in reply to Haas, 05-21-2002 04:16:21  
Works like an old coffee pot........

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05-20-2002 20:17:19

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 Re: water pump ? in reply to jack, 05-20-2002 18:03:43  
I put a water pump on my 42 A. I used what a super C calls for works well and I know it stays cool now

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05-20-2002 19:02:31

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 Re: water pump ? in reply to jack, 05-20-2002 18:03:43  
Have a 46 Farmall A with thermosiphon system, no pump. Have worked the everloving s*** out of it and never overheated, never boiled water - always runs great. I have pulled 10 foot chisel plow on 100 degree day in 1st gear making it work for all it's worth and had no problem.

Keep it clean and premix antifreeze as others said.


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Red Dave

05-20-2002 18:45:19

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 Re: water pump ? in reply to jack, 05-20-2002 18:03:43  
With a thermo-syphon system be sure to keep the coolant level full so that the syphon cycle can work. It will gurgle and push a little out the overflow when its hot and you make it work, this is normal.

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05-20-2002 18:21:23

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 Re: water pump ? in reply to jack, 05-20-2002 18:03:43  
It is Thermo-siphon type cooling system. As the water heats up it rises to the top of the engine and out the top hose into the raditor where the fan cools it down and it falls to the bottom of the raditor and back into the engine. This system actually works quite well as long as the system it clean, not full of rust and gunk build up.

No water pump, No thermostat, NO PROBLEM!!!!!!!!!!

Premix your anti-freeze and water to insure a good mix.

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05-21-2002 17:50:56

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 Re: Re: water pump ? in reply to BIG JOHN, 05-20-2002 18:21:23  
thanks to all for the info i have been mowing with it and heard the gurgling noise when i shut it off now i know why thanks again

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