[68coupe&06GT]

Can anybody tell me how involved the process for removing and installing a new heater core is for a 68? Thanks!

[rodbender]

Depends on whether you have air conditioning or not. Basically you're removing the glove box, heater plenum and attaching cables, ducts and hardware, and the hoses going into the firewall.

[68coupe&06GT]

No air conditioning. Is it a hard process? or is it a quick fix?

[rodbender]

Well it's gonna be a little time consuming. I would plan on about 4 hours.

[68coupe&06GT]

good deal, thanks!

[Doc4421]

This is a really easy process. It just takes a step by step time. There's a photo tutorial online somewhere.

When I did it, it took longer than four hours, but that was because I was painting stuff along the way and wanted to make sure the stuff had time to dry. While you've got the core out of there, you might want to check the motor and possibly repaint the squirrel cage, the vent doors and such. You might also want to redo the linings if they're shot. Once you've got the box off and everything open, it pays to redo it all. Saves you from having to go back in.

Also, take the glove box off, but also consider prying the blower motor resistor off of there. I didn't and when I went to put the box back in, I beat the hell out of the prongs and nearly destroyed the thing. If you take it off, put the box in and out and then put the resistor back, you'll get better clearance and save yourself a headache.

Doc

[poppy]

Very easy, just did it. The fan motor extrudes through the firewall with four nuts holding the whole assembly in place. Disconnect or cut the heater hoses, remove the four nuts at the motor. Once that is done, you should find a bolt underneath the dash to the right of the glove box holding the unit in place. Remove that bolt and disconnect the levers that open and close the heater doors. The whole unit should drop down. There are clips holding the two sections of the box together. Remove those and the heater core will slip out.