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79 Vette Heater coil

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Old Dec 30, 2011 | 07:05 AM
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Default 79 Vette Heater coil

in the process of overhauling i found that the heater coil was bypassed. anyone know what kind of job it is to replace this and where to find one? or if there are any aftermarket alternatives?

still new to the vettes but im loving it more every time i look at it =)
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Old Dec 30, 2011 | 08:20 AM
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Here's a write up I did quite a while ago on an '80.
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Old Dec 30, 2011 | 08:34 AM
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Oh boy, that looks like fun.

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Old Dec 30, 2011 | 08:37 AM
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A/C or non-A/C?
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Old Dec 30, 2011 | 08:52 AM
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I did my non-air 74 and it wasn't bad considering I already had the engine out of the car as well as the complete interior so dropping the right side dash parts wasn't much more work....
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Old Dec 30, 2011 | 12:32 PM
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Originally Posted by paul 74
...A/C or non-A/C?...
Probably AC; most 79s had it. Standard beginning with the 80 models.

Originally Posted by Yellow74c3
...I did my non-air 74 and it wasn't bad...
That's cheating. Swapping the non-AC core is much much easier. AC core is a PITA.

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Old Dec 30, 2011 | 09:47 PM
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it has A/C but its DC'd
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Old Dec 31, 2011 | 09:16 AM
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Originally Posted by Ghozt
it has A/C but its DC'd
Doesn't matter if it is disconnected. You will have to do the job the way shown by AVette. Here is another reference for you.

http://www.corvettemagazine.com/content/view/81/

FWIW, without A/C is MUCH easier. Here is an article I wrote 11 years ago when I was driving a 1979 L-82.

http://www.capitalcorvetteclub.ca/in...re-replacement

The 1979 is still on the road and the core is still OK. Here it is with my 1974.


Last edited by Paul L; Dec 31, 2011 at 09:21 AM.
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Old Dec 31, 2011 | 04:31 PM
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wow, thanks for the info guys, looks like a project lol, for now i dont have a place to work except out in the driveway. that will change soon enough though.....anyone want to donate a snowsuit or Parka please =)
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Old Dec 31, 2011 | 04:32 PM
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BTW nice vettes Paul =)
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Old Dec 31, 2011 | 04:43 PM
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Originally Posted by Ghozt
BTW nice vettes Paul =)
Thanks. Don't try that job in a driveway in the cold of winter. Believe me!





The 1979 is now owned by my younger Brother. He cherishes it as I once did. It was my first Corvette back in 1986.



BTW, Happy New Year!

Last edited by Paul L; Dec 31, 2011 at 04:58 PM.
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Old Jan 1, 2012 | 05:43 PM
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Avette4me, I have changed a couple of these, & you got it right on the nose. I removed the inside window trim on both sides. Be careful with the corners of the dash, they are pretty fragile, & will break pretty easy. Raise it up on the glove box side & twist out carefully. I'm going to keep your set-up, just in case I have to do it again. Happy New Year. Gene
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Old Jan 2, 2012 | 08:13 AM
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Originally Posted by doctorgene
Avette4me, I have changed a couple of these, & you got it right on the nose. I removed the inside window trim on both sides. Be careful with the corners of the dash, they are pretty fragile, & will break pretty easy. Raise it up on the glove box side & twist out carefully. I'm going to keep your set-up, just in case I have to do it again. Happy New Year. Gene
Thanks and you're right about the dash. If it's original, you're gonna crack it if your not exceptionally careful.
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Old Jan 2, 2012 | 12:02 PM
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Default heater core replacement:

Great tutorial, best of luck to you! Like anything else you will do on a 'Vette, when it starts to get the better of you, walk away!! Next time you go back to it, things will get better.
The '75 I did, it wasn't necessary to remove the top dash or the gauge cluster, just had to be more patient with everything. Definitely take out the seat on that side, though, much better ease of access for your body. You will learn contortionism at its finest on this job!

Last edited by Uncle Maddog; Jan 2, 2012 at 12:04 PM. Reason: spelling
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