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Unread 11-04-2010, 12:32 PM   #1
littlebuddie
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Tank Type Block Heater - Assist Please

Has anyone installed one of these? I need to utilize an available engine block drain to install the nipple that connects to the cold water inlet on the tank heater. The heating unit must be fastened at least 6 inches below the top of the valve head. The only available point of connection I can see is on the manifold side of the block but it is so close to the cat converter and exhaust and I fear the rubber hoses and electric cord would be vulnerable near too much heat. I have placed a red arrow on the photo to pinpoint the drain port I am speaking of. I am thinking of extending the heating unit away from this hot spot with an 8 inch length of pipe. Also, the heater outlet must connect to a heater hose on the opposite side of the engine which seems quite a long run of hose that must not be routed above the water level in the radiator and must go around the front of the engine avoiding the fan and pulleys without going over the engine to get to the other side. I would really appreciate any suggestions offered. Thanks!



Photo credited to John Foutz

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Unread 11-05-2010, 01:02 AM   #2
th3_d0c
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I had a heater on my old YJ(Canadian version, probably still aftermarket). But I believe it was actually in one of the big shiny holes just above that bolt. The rear one to be exact. I will comment, when it breaks it will scare the poop out of you, "WHY IS THERE SO MUCH STEAM FOLLOWING ME?!"
But, I guess it would have been more of a block heater.
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Unread 11-05-2010, 09:01 AM   #3
ElZorro
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Quote:
Originally Posted by th3_d0c View Post
I had a heater on my old YJ(Canadian version, probably still aftermarket). But I believe it was actually in one of the big shiny holes just above that bolt. The rear one to be exact. I will comment, when it breaks it will scare the poop out of you, "WHY IS THERE SO MUCH STEAM FOLLOWING ME?!"
But, I guess it would have been more of a block heater.
Yep, that would have been a freeze plug heater.
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Unread 11-05-2010, 10:43 AM   #4
littlebuddie
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Thanks for your replies th3_d0c and ElZorro,
I suppose a freeze plug heater might have been easier to install but I have had this tank-type heater new in the box stashed in the garage for many years and decided to install it this year. I know both these type block heaters are popular in colder climates so maybe in the near future someone with one of these tank-type heaters will add their experience. Hopefully before it gets too cold............
Thanks Guys!!
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Unread 11-05-2010, 11:08 AM   #5
JCJ
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I haven't purchased one yet and I'm sure there are a few different kinds with different plumbing requirements. I was under the impression that it could either be installed inline or with a couple of T's between the heater hoses pulling from the intake side and supplying the warmed coolant to the pump side. A possible good or bad side effect would be that the heater core also receives warmed coolant.

What brand and model do you have?
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Unread 11-05-2010, 11:54 AM   #6
littlebuddie
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Hi JCJ,
As you can see, it has been stashed in the garage for a long time - it's a NAPA Balkamp.........Balkamp??? Yup. The primary requirements are that it is mounted no less than 6 inches below the top of the valve head and that the hoses are placed so that there is no air lock along the route, so I guess that means keep the hoses low, short and below the highest point of the coolant/water level. Thanks for your interest in my question.
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Unread 11-08-2010, 10:05 AM   #7
littlebuddie
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Bump.......still need advice.......thanks............
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Unread 11-08-2010, 11:57 AM   #8
John Strenk
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Why not use the other port on the engine. Both of these were used for a CTO device.

Yellow arrow.
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Unread 11-08-2010, 12:15 PM   #9
Chewtoy
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I had one on mine. Just took it off as I did not find it to be all that effective. Mind you it was PO mod, so maybe it could have been installed better. But none the less, it was more pain than benifit.
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Unread 11-08-2010, 12:23 PM   #10
littlebuddie
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Excellent, thanks John! I was wondering if I could use that other port. I'll keep what you say in mind chewtoy but the good thing is it is easy to pull the unit without any problems or repairs if it doesn't work out.
Thanks!!
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Unread 11-08-2010, 12:57 PM   #11
John Strenk
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Wanna know a trick on how to replace these plugs without loosing any coolant?
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Unread 11-08-2010, 01:10 PM   #12
tractor1
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You can use the front plug and add a pipe to it to clear the exhaust pipe then mount the heater on the inside fender well. For the return line use a copper pipe that can be bent in a shape to clear the fan belts.
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Unread 11-08-2010, 01:40 PM   #13
cheese_man
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it is meant to be connected to the lowest point of the engine block ( coolant port )

find a plug near the oil pan and connect the pre heater to that port
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Unread 11-08-2010, 02:30 PM   #14
Lordwrench
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"Wanna know a trick on how to replace these plugs without loosing any coolant?"


Yes
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Unread 11-08-2010, 03:55 PM   #15
John Strenk
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Quote:
Originally Posted by Lordwrench View Post
"Wanna know a trick on how to replace these plugs without loosing any coolant?"


Yes
Remove the radiator cap, get a shop vac and attach the hose to the top of the radiator. Turn the vac ON. You can then remove the plug without any coolant leaking out.
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