1973 Dodge Charger SE a/c question

[Bb70charger500]

I agree that it's there on non AC cars. AC cars had the tube on the bottom.
AC was not standard on 73 SE's it was an option although most had it.

@JohnEngland post a close up picture of the firewall in that area.

I see what your talking about one picture it's correct the other looks like it's going to the wrong area !

 

[Nacho-RT74]

Maybe since it was loaded they didn't bother marking them ac cars
@Nacho-RT74 will Know the awnser
So let's see some pics of your car I'm curious a 73 se 4 speed car?

Actually I'm not really deep into the codes topic. Venezuelan Assembld cars never got fender tag so never has being forced to get deep into that LOL.

 

[JohnEngland]

what tube are we talking about?

 

[JohnEngland]

what tube are we talking about?

I believe that tube is a drain for the cowl area where the wiper linkage resides?

 

[YY1]

different valve covers in the two pics

might be a silly question but the tag shows d21?

care to post the tag?

 

[JohnEngland]

different valve covers in the two pics

might be a silly question but the tag shows d21?

care to post the tag?

It is a original d21 (4 speed) car
I rebuilt the motor also that is why the two different valve covers.

 

[JohnEngland]

fan area pic

 

[JohnEngland]

fan area pic

View attachment 662551

 

[ODZKing]

My 73 is a factory A/C car and the inlet/outlet hose nipples do not look like that at all. the simply come through the firewall with no visible mounting brackets. and I don't believe the factory used that kind of goop to seal the firewall, only gaskets.
Only difference is I converted mine to new compressor and 134.
One other note, if it were a factory big block A/C car it would have a 28 inch radiator which would also be on the fender tag, last item just says '28'.
A/C would be on the build sheet if you have it as well.
My guess is it was (and nicely done I might add) either a dealer add on or someone did it. But as I said my guess ...
Beautiful SE indeed.
Mine:

 

[moparmarks]

That is an a/c firewall. Someone probably added the putty to stop water leaks.

 

[JohnEngland]

i added the putty to keep the hot air from entering cabin (headers)
it also has 28 inch radiator.

 

[JohnEngland]

My 73 is a factory A/C car and the inlet/outlet hose nipples do not look like that at all. the simply come through the firewall with no visible mounting brackets. and I don't believe the factory used that kind of goop to seal the firewall, only gaskets.
Only difference is I converted mine to new compressor and 134.
One other note, if it were a factory big block A/C car it would have a 28 inch radiator which would also be on the fender tag, last item just says '28'.
A/C would be on the build sheet if you have it as well.
My guess is it was (and nicely done I might add) either a dealer add on or someone did it. But as I said my guess ...
Beautiful SE indeed.
Mine:
View attachment 662567

Thanks for the picture and info

 

[YY1]

a conversion or dealer install would mean a new dash frame or cutting out the metal for the driver side vent.

 

[JohnEngland]

I'm almost positive this was an option and on the car when purchased from dealer, it is just not on the fender tag?

 

[ODZKing]

From everything you have said now, I would tend to agree although there should be 2 drains and I only see one.
*A quick note* I had a dealer install a factory A/C system on my first 73 back in the day. I don't remember what under the hood was like and have no pictures, but the interior was the same as a factory, so it can be done.
I do know they did not change out the radiator because I always had overheating issues with it.

 

[Nacho-RT74]

This firewall has being modified from NON AC to AC... DEFINITELLY!

 

[Nacho-RT74]

( sorry, double post... so deleted this one )

 

[JohnEngland]

This firewall has being modified from NON AC to AC... DEFINITELLY!

View attachment 663113

what makes you say that?

 

[Nacho-RT74]

Holes on AC firewall to the evaporator and heater cores are originally kinda oval for each one of the cores ( one to each one ) while on your firewall are like 4 round holes cut and paired/linked. Aside that, the holes are sealed with somekind of sealer while original pieces are somehow of foamy gaskets

On outer side of firewall is visible the hole to the blower cooling hose used on Heater cars which is sealed with somekind of sealer ( same used on AC and Heater lines inlets ). On Heater cars that cooling hose fits diagonally between blower and that hole. Blower motor is indexed around 120 degrees off to meet the cooling provision coming out from heater box and the mentioned motor hole. For a while AC cars got the blower with the cooling air provision for the motor itself pointing out straight to the floor and firewall is set for that hose. This hose is way smaller.

On both setups this cooling air to refresh the motor comes from fiberglass box. The same air the blower blows out, it gets to the motor to keep it cooler as posible while spinning. The AC/Heater blower is the mothesucker of all the electrical devices on our cars and gets lot of heat due the load required.

 

[JohnEngland]

Holes on AC firewall to the evaporator and heater cores are originally kinda oval for each one of the cores ( one to each one ) while on your firewall are like 4 round holes cut and paired/linked. Aside that, the holes are sealed with somekind of sealer while original pieces are somehow of foamy gaskets

On outer side of firewall is visible the hole to the blower cooling hose used on Heater cars which is sealed with somekind of sealer ( same used on AC and Heater lines inlets ). On Heater cars that cooling hose fits diagonally between blower and that hole. Blower motor is indexed around 120 degrees off to meet the cooling provision coming out from heater box and the mentioned motor hole. For a while AC cars got the blower with the cooling air provision for the motor itself pointing out straight to the floor and firewall is set for that hose. This hose is way smaller.

On both setups this cooling air to refresh the motor comes from fiberglass box. The same air the blower blows out, it gets to the motor to keep it cooler as posible while spinning. The AC/Heater blower is the mothesucker of all the electrical devices on our cars and gets lot of heat due the load required.

I I put the sealer on the hoses to keep hot air from coming into the cabin and the hose that goes to the blower is there that keeps the blower cool the sealer is my doings because I have headers, heat would come in to the cab