Circled in yellow on the left are the two 'easy' core retaining screws, and on the right (near the firewall) the two rear ones. Note: here is the heater case on my workbench, with the fresh air duct removed. Oh yeah, you need to pull the vacuum hose off the recirc door actuator.ġ0) Remove two rear screws from the rear side of the core and remove the core. Note: Here is the case without the core, because I only had the two easy screws to remove, not the nasty ones at the back. NOTE: This won't work because of the four nuts holding the heater case to the blower squirrel cage! You must remove them from inside the car:ĩ) continued: Remove four screws (I guess they mean the squirrel cage screws here) disconnect a cable (to the fresh air vent) and position the fresh air vent out of the way to gain access to the core rear screws.

I only found 2 nuts, one directly above and one directly below the heater hose holes, you can see the small holes for the threaded studs for them here:ĩ) Pull the heater assembly away from the dash. Note: I am not sure this applies to all cars. You can even see where my core is leaking, bottom center (where it is green):Ĩ) Loosen seven nuts from the engine side of the dash securing the heater assembly. Obviously, I am not the first to do this on my car, only these two screws were installed. Note: Once the grill is removed, you can see the heater core (right), and the recirculation door (left), covering up the squirrel cage.ħ) Remove two screws from the front of the heater core case. The plug is tough to reach, and you have to pull it apart using just one hand.Ħ) continued: Remove seven retaining screws and the recirculating air grill: I am starting with section 16-4, part 6Ħ) Disconnect the resistor plug. If you follow the shop manual, you will end up removing the lower right dash panel. I have all my seats removed, so lots of room inside the car. Since I need to repair/replace my heater core, I thought I would post some photos to help out anybody else needing to do this. I bypassed it so I could drive around a little before winter, but it is just too cold in the mornings without a heater. My 66 Town Landau with factory AC blew the heater core 2 weeks ago.

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