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block heater

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ralph ohnmacht

03-05-2005 12:21:48




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my neighbor has installed his 3rd block heater in his jd. i tested it by reading ohms across the two plugs and it is ol infinite. why could he be burning them out right away???




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JMS/MN

03-06-2005 20:44:06




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 Re: block heater in reply to ralph ohnmacht, 03-05-2005 12:21:48  
I replaced the first element in my 1974 Model 4430 a couple of years ago. It has a 90 degree bend in it. It is important that it be installed in the right direction-----but I don't remember which way it was. Should be an insert in the box explaining that. Or call the dealer's service dept. Also run the tractor a while after installation to make sure coolant circulation is established before using the heater.

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Dean Barker

03-05-2005 18:09:59




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 Re: block heater in reply to ralph ohnmacht, 03-05-2005 12:21:48  
If you have a 1000 watt block heater, you should be measuring about 14.4 ohms across the heater prongs. If you are not measuring close to this, maybe the new block heaters are bad. I bought a new block heater for my 4320 from JD which was made by Philips-Temro. It wasn't soldered together properly and it leaked; didn't get it back under the 3 month warranty, so I had to buy a new one. Good Luck.

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ralph ohnmacht

03-05-2005 18:49:08




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 Re: block heater in reply to Dean Barker, 03-05-2005 18:09:59  
i will check that for him on the next new one.thanks



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thejdman01

03-05-2005 16:13:09




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 Re: block heater in reply to ralph ohnmacht, 03-05-2005 12:21:48  
depending on how it breaks you could be getting metal flakes into the cooling system too with each one that breaks



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thejdman01

03-05-2005 16:13:00




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 Re: block heater in reply to ralph ohnmacht, 03-05-2005 12:21:48  
depending on how it breaks you could be getting metal flakes into the cooling system too with each one that breaks



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thejdman01

03-05-2005 16:10:06




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 Re: block heater in reply to ralph ohnmacht, 03-05-2005 12:21:48  
agree after putting the block heater in run it to get all of the air out of the system. also one thing that will kill a block heater is make sure to plug it in after it is shut off and unplug it before you start it. even if for a second you dont have coolant up to the heater it will burn it up. when you start the vehicle and the water pump starts to pull if collant even if only for a short time will burn them out. had a shop teacher who made that lesson real quick and made it stick. he had a 5 gal bucket of water put it in the water plugged it in and then with it plugged in he pulled it out of the water it burst.

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ralph ohnmacht

03-05-2005 16:17:07




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 Re: block heater in reply to thejdman01, 03-05-2005 16:10:06  
they are not breaking they just do not work. he has it stopped when plugging it in. he plugs it in before he is ready to use it in the morning and unplugs it before firing it up. ralph



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Bob

03-05-2005 13:54:19




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 Re: block heater in reply to ralph ohnmacht, 03-05-2005 12:21:48  
I'ts unusual for the heaters to fail unless someone plugs them in before coolant is put back into the system.

What model tractor, and what heater is he using... Deere or aftermarket, actual block heater or tank heater?



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RayP(MI)

03-05-2005 15:25:57




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 Re: block heater in reply to Bob, 03-05-2005 13:54:19  
Is it possible that where the heater is installed keeps a bubble of air in the area of the heater? Probably should start and run engine to be sure that all air bubbles clear the system before using the heater. (Yeah, I know - how to start her cold!)



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ralph ohnmacht

03-05-2005 16:06:09




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 Re: block heater in reply to RayP(MI), 03-05-2005 15:25:57  
yeah if it starts to run the bubbles out i don't need the heater.lol. i only have a baby jd 4100 and it starts at 0 if wanted.



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ralph ohnmacht

03-05-2005 14:27:21




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 Re: block heater in reply to Bob, 03-05-2005 13:54:19  
he has a deere 2355 i think. he used a deere heater. and this last one he made sure he unplugged before starting. someone told him they only plug in one way but i can plug the cord part of the heater in either way if you know what i mean. any ideas. and am i correct how i tested by ohms on both prongs not reading anything is bad? ralph



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Bob

03-05-2005 14:58:34




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 Re: block heater in reply to ralph ohnmacht, 03-05-2005 14:27:21  
It shouldn't matter which of the two heater prongs are "hot". If it did, the plug at the heater would be made to only plug in one way.

Supposedly, a really high concentration of anti-freeze is tougher on a block heater because it does not circulate and carry the heat away from the heater as well as a 50% or 60% concentration does.

Also, have you verifed the voltage rating (most likely stamped into the heater) matches the supply voltage it's being plugged into?

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ralph ohnmacht

03-05-2005 16:11:49




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 Re: block heater in reply to Bob, 03-05-2005 14:58:34  
does it matter which way the element goes in. the original one he don't which way the element was pointed. the last two he burned up he had them pointed back??



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190xtd

03-05-2005 16:51:30




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 Re: block heater in reply to ralph ohnmacht, 03-05-2005 16:11:49  
some models it does matter because of clearance issues. does it stick straight in or have a bend to it? make sure that it isn"t touching or hitting anything inside of the block.



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ralph ohnmacht

03-05-2005 16:53:31




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 Re: block heater in reply to 190xtd, 03-05-2005 16:51:30  
it has a 90degree bend in it



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