remove the evaporator case from under the instrument panel. I've had 3 66
eith AC and one without and honestly, I've never had to venture into the heater
core\evaporator area on any of them. The way it looks on my AC car, the evap.
to come out from under the hood, possibly including removal of the fender, hood
hinge. This is a car with AC, a car with just a heater IIRC, the core comes out
panel under the instrument panel.(going fom memory) Does your car have AC (or
ever have it from the factory), or is it heat only?
on a heat only car, the heater core is accessed by removing the 2 screws
that hold the cover to the firewall in the motor bay. nothing else needs to
be removed besides the hoses.. total replacement time is 10 min.
Dont be intimidated... most fenders come off much more easily than it first
appears... just use something to mark alignments and shim locations
We were fortunate in the sixties that there werent battery powered power
tools.... a lot of us would have come back to our cars in a long-term lot
to find hoods and maybe the whole front end missing
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