Join Date: Sep 2006
Location: Chattanooga, TN
Re: how to remove heater core on 67 Galaxie
My 1966 shop manual briefly discusses removing the heater unit from the firewall, if that's what you are inquiring about. Simple task-- drain the coolant system and the heater hoses at the heater unit, remove the retaining screws which secure it to the firewall, and break the unit away from the firewall. It is sealed to the firewall, so some careful prying may be involved. When you replace the unit, the manual says to put "silicone lubrication" on the padding around the unit. My guess is that most of that padding will tear away, so maybe clean it off and reseal it with some silicone sealer so the heater will remain efficient.
The heater has a blower on one side and a heater core, which looks like a tiny radiator, on the other. If you smell radiator fluid and the windows got fogged, then you are doing the right thing, I think.
They sell the cores separately, so you can keep your blower motor if it still works. I see a replacement core in my AutoKrafters catalog and my Dearborn Classics catalog. You can see if you can get it fixed at a place that fixes radiators, or get a replacment.
Hope that helps.