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Unread 05-06-2015, 01:07 PM   #1
mrangelo
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1985 CJ7 
 
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How to remove or disable the heater stove in a CJ-7

I'm writing this post after made a lot of search and don't found any info.

How I can remove or disable the heat stove in my CJ-7? I changed to TBI and don't need the stove. I don't like to have that hot air in the motor compartment if is not necessary, I think this 258's are very hot when run and don't like the idea to add more.

To take that piece out looks like I need to take down the motor or maybe remove the whole manifold because I don't see any screw, nut, etc for that, I can't just disable it? (I done know of there is a motor or something for that'

I appreciate any help

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Unread 05-06-2015, 01:11 PM   #2
walkerhoundvm
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Leave it in. It actually serves a purpose.

On second thought - go ahead, disable it. It has a very standard locking connector coming off of a large red wire at the base of the manifold heating element. It's about 8" long before it reaches the connection, if I remember correctly.
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Unread 05-06-2015, 01:23 PM   #3
CSP
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Are you even sure what the heat stove is? From the sounds of how you want to disable it I don't believe that you do.
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Unread 05-06-2015, 02:15 PM   #4
Matt1981CJ7
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As CSP eluded to, the "heat stove" and "manifold heater" are different things.

If it's the manifold heater, and it's working, I'd leave it. It only operates when the engine is below 160*. It provides extra vaporization of the fuel mixture, when your engine needs it.

http://home.sprynet.com/~dale02/manifold.htm

The heat stove is part of factory TAC system, which directs heated air from around your exhaust manifold, thru a flexible tube and trap door in your air cleaner snout, when the engine is cold. It's purpose is to aid in cold weather operation, and prevent carb freeze ups.

http://home.sprynet.com/~dale02/aircl.htm#tac

Matt
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Unread 05-06-2015, 02:38 PM   #5
walkerhoundvm
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Quote:
Originally Posted by Matt1981CJ7 View Post
The heat stove is part of factory TAC system, which directs heated air from around your exhaust manifold, thru a flexible tube and trap door in your air cleaner snout, when the engine is cold. It's purpose is to aid in cold weather operation, and prevent carb freeze ups.

http://home.sprynet.com/~dale02/aircl.htm#tac

Matt
And removing it won't do a darn thing to reduce heat in the engine bay. It's a passive system.
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Unread 05-10-2015, 10:08 PM   #6
mrangelo
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Sorry, for some reason I missed the notifications of the forum. Yes, I'm sure that I'm talking about the stove. I took out the hose (Mine was orange color) but the port still throwing that heat air. I thought I can remove that but looks like unless I remove the exhaust manifold I won't be able to remove it.
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Unread 05-10-2015, 10:33 PM   #7
CSP
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The stove just directs heated air up the tube to the flapper door on the air filter housing. You're not removing any heat from the engine compartment by removing the sheetmetal that surrounds the exhaust manifold. There's nothing there to disable, as said multiple times in this thread.
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Unread 05-12-2015, 05:30 AM   #8
STJP
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Here are heat heat stove pics. I happen to be working on re-installing a stove now. As noted, it is a passive heat source. On the back an angled edge on the stove fits over the ridge cast into the back of the manifold. In front it is connected with three rivets.

It you want to remove it, grind off the heads of the rivets, then rotate the stove back to roll/lift off of the cast ridge. The stove will "flex" to allow it to come off.

Do all this carefully and you will be able to sell it. I know a good candidate
img_20150506_190019303_hdr.jpg   img_1564.jpg   img_1565.jpg   img_1566.jpg   img_1568.jpg  

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Unread 05-12-2015, 05:34 AM   #9
STJP
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One more pic that may be helpful. View from back with stove installed.
img_1551.jpg  
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Unread 05-12-2015, 06:35 AM   #10
Matt1981CJ7
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As already stated, there's no reason to remove the heat stove. Doing so will not reduce heat in the engine compartment.

Since the OP is in Colorado Springs, he really should consider leaving the heat stove hooked up and operational.

Matt
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Unread 05-12-2015, 07:21 AM   #11
STJP
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I could not agree more. It does not add heat and depending on setup, may or may not be useful. If using a carburetor with a stock air cleaner, it is very useful and best left operational.

With that said, he says he wants to remove it. He needs to know it is not a valueless piece of metal and how to remove it without destroying it.
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