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41 A Cooling System

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Author  [Modern View]

11-24-2012 08:01:17

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Sorry for a newbie question but I just want to make sure I'm on the right page here.

Before winter sets up I'd like to change the coolant in my '41 A. The attached picture is the coolant drain plug, yes? And it seems like any color antifreeze will work, is this true?


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11-24-2012 14:05:21

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 Re: 41 A Cooling System in reply to Emmo213, 11-24-2012 08:01:17  
Put a ball valve where your drain plug is so next time you dont have to drain the whole system at once. Not sure of the capacity on an A but the B is 7gallons. Not easy to catch when it comes out.

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11-24-2012 08:22:19

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 Re: 41 A Cooling System in reply to Emmo213, 11-24-2012 08:01:17  
Yes you are correct. But, mix the coolant BEFORE pour it into the radiator. It will not mix if you don't. Leaving you a cracked block / head from freezing. These don't have water pumps they are a thermo syphon system . Good luck.

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Carlyle Hoffman

11-24-2012 08:22:12

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 Re: 41 A Cooling System in reply to Emmo213, 11-24-2012 08:01:17  

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11-24-2012 09:14:24

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 Re: 41 A Cooling System in reply to Carlyle Hoffman, 11-24-2012 08:22:12  
Yes, but I still Prefer good old GREEN permanent Antifreeze... PRE-MIX, before pouring in a COLD engine always..


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11-24-2012 12:53:04

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 Re: 41 A Cooling System in reply to BushogPapa, 11-24-2012 09:14:24  
Quoting Removed, click Modern View to see

Not all ethylene glycol is green. Peak is blue, still EG, still permanent. Can't say I've ever had a problem by not pre-mixing, even on non-water pump engines, but then I generally pour in one gallon of EG, then fill that gallon with water, then I split the next gallon into the two containers I have until filled. That way if I have any left over, it's 50/50.

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