Coolant heater pump
Thread Starter
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Senior User
Joined: Aug 2011
Posts: 448
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From: Dearborn Heights, MI
Coolant heater pump
Hey yall, Does anyone use, or know anything about using a Coolant circulation heater pump versus the factory block heater? I have a 84(weak casting near block heater) and I dont want to risk cracking the block. It can get quite cold here in MI and I need to make sure she'll start everymorning.
Cooling System Heater circulating coolant heater 2000 W | eBay
This is what Im refering to. Im looking at replacing the heater hoses anyway, So i figured Id do this at the same time.
Cooling System Heater circulating coolant heater 2000 W | eBay
This is what Im refering to. Im looking at replacing the heater hoses anyway, So i figured Id do this at the same time.
More Turbo
Joined: May 2010
Posts: 618
Likes: 3
From: Grand Rapids
I'm getting the same heater for my rebuilt 87 which doesn't have a block heater. Mine will be a 1500 watt though.
http://www.amazon.com/Kats-13150-Alu...=1MY28SFS36WIZ
http://www.amazon.com/Kats-13150-Alu...=1MY28SFS36WIZ
Post Fiend
Joined: Oct 2007
Posts: 10,501
Likes: 5
From: Faibanks Ak.
Kats has been in business for years and is a well thought of name in these heaters. I have never used one on an idi, but I sure hope they work good, because I have one sitting on the shelf that I bought to use on mine if and when the one in it goes bad.
Posting Guru
Joined: Jan 2010
Posts: 1,665
Likes: 4
From: Terre Haute, IN
I always read that those need to be mounted as low as possible. Can't remember the routing for the hoses either....
I'd like one for the Ranger, but i'm not driving it as long as my diesel keeps running...
I'd like one for the Ranger, but i'm not driving it as long as my diesel keeps running...
Hotshot
Joined: Feb 2004
Posts: 11,697
Likes: 3
From: Marengo, Iowa
Ideal is to hook them up at the bottom of the block and route to the top of the block somewhere. So take out the drain plug, refit it with a nipple, and route to the heater hose is ideal, but tricky... They do work well though.
Post Fiend
Joined: Oct 2007
Posts: 10,501
Likes: 5
From: Faibanks Ak.
Cant you just install in one of the heater hoses and let it circulate back through the other hose.
They also make one that installs in the lower radiator hose.
They also make one that installs in the lower radiator hose.
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Hotshot
Joined: Feb 2004
Posts: 11,697
Likes: 3
From: Marengo, Iowa
The tank style is intended to circulate from the bottom of the motor and pump to the top of the motor. They can be put in a heater hose, but aren't as effective in that configuration. The one in the lower radiator hose is a different style, these have a tank where the coolant gets heated and the percolating action makes the coolant flow through.
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Thread Starter
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Senior User
Joined: Aug 2011
Posts: 448
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From: Dearborn Heights, MI
Thanks everyone for the insight! Fell, Your saying the best way is to mount it low from the drain on the radiator back up to one of the heater hoses? The one i have linked, I picked beacuse i wasnt sure on the coolant capacity of the 6.9. Man, I was hoping I could get away without draining the whole system, It need a upper rad hose and heater hoses...But Might as well do it right the first time so its the only time. Well as soon as I get it...Ill Do a Write-up on it.
Hotshot
Joined: Feb 2004
Posts: 11,697
Likes: 3
From: Marengo, Iowa
No, it hooks best to the block drains and to the heater hose with a t, the trick is that the block drain on automotive motors tend to be really small as well.
On only putting it in the heater hose, that actually is the highest point on the motor, and the first to lose coolant in the event of a leak, so circulation is likely to be an issue if not for any other reason but that one.If the heater hose would draw lower on the motor it would work better. It may work ok, but not as effective as the way I describe. Like I say, that setup is ideal, and we should all know ideal is not always translated to real.
On only putting it in the heater hose, that actually is the highest point on the motor, and the first to lose coolant in the event of a leak, so circulation is likely to be an issue if not for any other reason but that one.If the heater hose would draw lower on the motor it would work better. It may work ok, but not as effective as the way I describe. Like I say, that setup is ideal, and we should all know ideal is not always translated to real.
Thread Starter
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Senior User
Joined: Aug 2011
Posts: 448
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From: Dearborn Heights, MI
Ah, I gotcha now lol...It can and does get into the single digits here, wind chill has been below 0. Are their the lower Rad ones that will circulate the coolant as well? Maybe that would be a better setup?
More Turbo
Joined: May 2010
Posts: 618
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From: Grand Rapids
I think the ones we are getting are better since the coolant in the block rather than the Rad will be heated first
Senior User
Joined: May 2010
Posts: 337
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From: Des Moines
I have a Kat in my lower radiator hose. You just cut and splice it in at a place where the hose is pointed up towards the engine, and not the radiator. The warm coolant flows up and into the engine block and not the radiator. I don't have a problem with it.