Author Topic: '69 Camaro SS convertible heater core replacement  (Read 174 times)

Randy Shanks

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'69 Camaro SS convertible heater core replacement
« on: December 01, 2017, 01:42:45 AM »
I have a 69 SS 396 convertible that I bought new ( ordered from local dealer ).
Hugger Orange w/ white top and interior. As you may realize this car is part of my family.
I seems the heater core has developed a leak.
Any advice on the best approach to replace it. Can I get to it from the inside to avoid removing the inner fender and fender?
Any help would be appreciated.
Randy
1969 Camaro, SS 396, 4 speed, convertible, Hugger Orange w/ white top and interior.
Bought New in summer 1969

69Z28-RS

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Re: '69 Camaro SS convertible heater core replacement
« Reply #1 on: December 01, 2017, 04:44:40 AM »
Personally, I would remove the fender if that proved necessary (not as difficult as you might expect), but rather than 'replace' the heater core, you can take it to a radiator shop and get it repaired...  As original as your 'one owner' Camaro must be, it would be the 'right thing to do'..  :)

Gary W / 09C 69Z28-RS, 72 B 720 cowl console rosewood tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe, '70 Mach I 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55-'56-'57 Nomads, '55-'57 B/A Sedan

KevinW

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Re: '69 Camaro SS convertible heater core replacement
« Reply #2 on: December 01, 2017, 12:28:57 PM »
Randy, Congrats on knowing what to purchase way back in 69!

So having done this on a freshly painted SBC Camaro, it is not that difficult, just time consuming and you will be cussing!

I assume you do not have A/C, that is a WHOLE other procedure!

The core is in the heater box, which is inside the car. The bolts protrude into the engine bay and come out around the fan air box. It should be possible to remove the nuts (and core inlet gasket) from the engine bay side and get the heater box out, since the BBC heater hose inlets come straight out. If you have a console you will be fighting with getting the box out around the console.  The console and heater control lines will hold you back.

If I were you, I would remove the heater lines 1st (removing the glove box, makes it easier & label them!), maybe the console too before attempting the heater box removal.

Then you should be able to get it out the heater box.  The core is clipped in, remove the screws, then the core should come out.  The core should be fixable (its just a little radiator). What I did was bought a repro core and had them replace the end cap and save the Harrison logo. I think they may be dated too.

Now is a good time to look at the seals in the heater box to see if they have deteriorated. Good Luck!

Removing the fan and fan airbox would require the hood and fender to come off :)

Sauron327

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Re: '69 Camaro SS convertible heater core replacement
« Reply #3 on: December 01, 2017, 01:07:47 PM »
I have Glen-Ray re-core my radiators and heater cores. A real radiator shop has cores in stock. No need to buy a repro core to swap your Harrison caps over to it.
Radiator shops are not as common as they used to be. And some of the old ones still around are not as qualified as you would think. I went through two butcher shops before I found one I could trust. Like Kevin said, no reason to remove the fender.

WorkinProgress

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Re: '69 Camaro SS convertible heater core replacement
« Reply #4 on: December 01, 2017, 03:00:48 PM »
Randy,

If you chose to replace the heater core be sure to keep the original as they are stamped with a letter code for the month and the last digit of the year of manufacture on lower side of tank.

I just had my original Big Block heater core cleaned and pressure checked by a guy in Massachusetts. You can send yours out here if you cannot get it repaired locally.

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