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JD 4020 external block heater question


 
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steveinohio
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PostPosted: Tue Feb 11, 2014 3:44 pm    Post subject: JD 4020 external block heater question Reply to specific post Reply with quote

I"ve had JD brand external block heater installed my 1964 4020 and recently replaced the top unit that goes inside the unit. (Unit is on the right side of the engine) It"s plumbed from the right side of the cylinder head and left side of the block. Is it designed to be plugged in overnight? Or is it preferred for 2 or 3 hours? I have some snowplowing to do in the a.m. tomorrow. Any assistance is always appreciated.
 
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chad muse
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PostPosted: Tue Feb 11, 2014 3:53 pm    Post subject: Re: JD 4020 external block heater question Reply to specific post Reply with quote

if it is a tank style, mine only takes a couple of hours. they are designed to be plugged in all night.
 
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steveinohio
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PostPosted: Tue Feb 11, 2014 3:59 pm    Post subject: Re: JD 4020 external block heater question Reply to specific post Reply with quote

Hello Chad, mine is the tank style. I appreciate your assistance. I think I might do that this evening.
 
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D-
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PostPosted: Tue Feb 11, 2014 5:00 pm    Post subject: Re: JD 4020 external block heater question Reply to specific post Reply with quote

No need to plug in all night. If it is out of the wind it will heat up in a couple of hours. However it does have a thermal switch.
 
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coonie minnie
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PostPosted: Tue Feb 11, 2014 5:56 pm    Post subject: Re: JD 4020 external block heater question Reply to specific post Reply with quote

How many watt is your heater? They come in different sizes, and the big ones need to be on a lot less time than the small ones.

All night will guarantee everything is as warm as its gonna get... but a big heater can heat a 4020 in a few hours.

If you do not want to waste electricity, you may want to invest in a timer that will turn the heater on at say 5am. I use several of these, and for the most part they work well.
 
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ET
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PostPosted: Wed Feb 12, 2014 6:46 am    Post subject: Re: JD 4020 external block heater question Reply to specific post Reply with quote

When you changed the element in the can did you make sure the foot valve in the bottom canister was not stopped up with sediment? If the flow is restricted you will overheat and burn up the element.
 
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jd1520
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PostPosted: Tue Feb 18, 2014 5:54 pm    Post subject: Re: JD 4020 external block heater question Reply to specific post Reply with quote

I plug mine in for 3 hours and engine temp is 140F when it starts ...it is 1000W heater

tractor is sheded out of the wind
 
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4020_1966
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PostPosted: Wed Feb 19, 2014 4:56 pm    Post subject: Re: JD 4020 external block heater question Reply to specific post Reply with quote

I have a 1500w tank heater and usually 30-40 minutes is enough to start it when it gets pretty cold here. It is parked inside an unheated shed.
 
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