CJ7 Heater Core Plenum/housing removal - JeepForum.com

 
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post #1 of 9 Old 12-01-2013, 03:50 PM Thread Starter
danfrye
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1978 CJ7 
 
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CJ7 Heater Core Plenum/housing removal

Swapping my Heater core plenum/box w/ actuators into a newer tub. But for the life of me I cannot find a nut, bolt or screw under the dash to take it apart. Are they suppose to be taken apart from the firewall side? Note: this jeep has had lots of fab work so... not sure if they covered up the nuts and bolts.

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post #2 of 9 Old 12-01-2013, 04:14 PM
lucdog
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4 nuts on the engine side of the fire wall.

B

1957 WILLYS pickup,
1973 J 4000,
1978 CJ7 DD.
1979 CJ7 360, TH400/Quadratrac.
1979 J20
1980 CJ5 trail Jeep.
1983 CJ7
1989 YJ the CJ to YJ.
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post #3 of 9 Old 12-01-2013, 04:19 PM
gainesee
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1986 CJ7 
 
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One directly behind the valve cover and three around the battery tray area
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post #4 of 9 Old 12-01-2013, 05:06 PM
Renegade82
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Look for (4) 1/4" studs with a nut and probably a star washer on them.

The end of a defining era.... JEEP R.I.P. 1941-1986
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post #5 of 9 Old 12-02-2013, 11:58 AM Thread Starter
danfrye
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Thanks guys. Found the bolts. Some old fab work covering up one of them... Nothing a little grinding cant fix though. Thanks again
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post #6 of 9 Old 12-02-2013, 12:07 PM
DucST4
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1984 CJ7 
 
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Location: Colbert, GA
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Now would be a good time to install a Chevy Blazer fan motor. Huge increase in air flow. And a low dollar project that has a good return.

I found it a ton easier to remove the passenger seat to get the box installed
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post #7 of 9 Old 12-03-2013, 04:09 PM
Renegade82
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Agreed. A $22 motor and some labor to enlarge the firewall hole that's there now.

The end of a defining era.... JEEP R.I.P. 1941-1986
My frame off Re-Build: (the 4 year saga....)
http://www.jeepforum.com/forum/f8/30...e-off-1280850/
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post #8 of 9 Old 12-04-2013, 11:11 AM
Blakescj7
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Quote:
Originally Posted by Renegade82 View Post
Agreed. A $22 motor and some labor to enlarge the firewall hole that's there now.
if youd even call it labor, took less than a minute with a high speed rotary file. Oh and if you do the upgrade i got mine from a 77 blazer at oreillys. if it has a heat sink collar on just slide it off before you grind the hole to keep from making the hole too large. then just slide it back on after its throught the fire wall.
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post #9 of 9 Old 12-06-2013, 09:38 PM Thread Starter
danfrye
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Okay... sounds like a plan... I'll look into the fan motor. Thanks again for the tips
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heater box , heater box swap , heater core

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