need info on heater core hose conections of a 1966 300 convertable with ac

[greg yoder]

just bought my 2nd 1966 300 convertable, this one has factory ac, does it have 2 heater coils?? there are 2 sets of copper nipples on the fire wall??? thanks

 

[413]

Heater control valve has 2 also.

From engine into valve
Out of valve in to heater core
Out of heater core to engine

 

[greg yoder]

Heater control valve has 2 also.
ok thanks,

From engine into valve
Out of valve in to heater core
Out of heater core to engine

 

[greg yoder]

just bought my 2nd 1966 300 convertable, this one has factory ac, does it have 2 heater coils?? there are 2 sets of copper nipples on the fire wall??? thanks

is the heater valve on the right side of ac line hook up, or the ones on the left, and is that 5/8 or 3/4 hose,, thanks

 

[413]

Usually heater valve is outboard, heater core towards center of vehicle

5/8" hose in 1966

1970 started with one hose 1/2"

Chrysler didn't use 3/4" heater hose on USA cars in the 60's and early 70's

 

[greg yoder]

Usually heater valve is outboard, heater core towards center of vehicle

5/8" hose

thanks

 

[CBODY67]

In the factory service manual, there is a heater hose AND flow direction graphic illustrating what hose is where and such. www.mymopar.com for free download of the manual.

Plus a hvac case graphic with the heater core picture (installed in the hvac case and such).

CBODY67

 

[greg yoder]

In the factory service manual, there is a heater hose AND flow direction graphic illustrating what hose is where and such. www.mymopar.com for free download of the manual.

Plus a hvac case graphic with the heater core picture (installed in the hvac case and such).

CBODY67

thanks

 

[phil88m6]

just bought my 2nd 1966 300 convertable, this one has factory ac, does it have 2 heater coils?? there are 2 sets of copper nipples on the fire wall??? thanks

Restoring the AC/heat on my 65 300L. Yes it has 2 heater cores combined in one frame. There is also a second heater control valve inside the evaporator/heater core box with heater hoses and clamps in the box. My dash is currently removed. Don’t ask. Since the co figuration does not match anything in the 65 service manual, I think this was a late year change as the parts ordered for up to 68.

 

[CBODY67]

Might check the 1965 Chrysler Parts Manual for hvac box illustrations.

Maybe the '66 Chrysler FSM, as I believe that year has the picture of the dual-core hear core assy.

CBODY67