My 1978 SA just got jealous
Thread Starter
Melting Slicks
Joined: Oct 2000
Posts: 2,268
Likes: 0
From: Roanoke Virginia
My 1978 SA just got jealous
I've been putting so much time, attention, and $$$$ into the 1972 recently, that I've been pretty much neglecting the 1978. Well, it spoke up this morning.
On the way to work I wonder "What's that funny sweet smell?" Hmmm, seems the carpet is damp under the passenger floor mat :crazy: :bb I guess this is heater core #2 this year, as I'm in process of replacing the heater core in the 1972. I'm going to get pretty good at heater core replacement, I think :rolleyes: :cry :cry :cry :smash:
Just venting my frustration :nonod: :boxing Something tells me repalcing the 1978 core is going to be a little more involved than the 1972, as the entire freaking dash is 1 large peice :mad
On the way to work I wonder "What's that funny sweet smell?" Hmmm, seems the carpet is damp under the passenger floor mat :crazy: :bb I guess this is heater core #2 this year, as I'm in process of replacing the heater core in the 1972. I'm going to get pretty good at heater core replacement, I think :rolleyes: :cry :cry :cry :smash:
Just venting my frustration :nonod: :boxing Something tells me repalcing the 1978 core is going to be a little more involved than the 1972, as the entire freaking dash is 1 large peice :mad
Burning Brakes
Joined: Dec 2000
Posts: 1,183
Likes: 2
From: Des Moines Iowa
Re: My 1978 SA just got jealous (thejaf)
If you don't need the heater right now, just unhook the heater hoses where they attach to heater core, and connect them together with a piece of pipe. Then you can still drive the car, just won't have any heat.
Thread Starter
Melting Slicks
Joined: Oct 2000
Posts: 2,268
Likes: 0
From: Roanoke Virginia
Re: My 1978 SA just got jealous (john's '81 mouse)
That got me thinking, isnt' there supposed to be a hot water shutoff valve on the later C3's? I see one there, looks like it operates on vacuum. At what setting is the valve shut off? There's enough heat generated from the engine compartment to heat the car anyway :rolleyes:
Team Owner
Joined: Jun 2001
Posts: 43,136
Likes: 155
From: Thomson Georgia
Re: My 1978 SA just got jealous (thejaf)
Man Do I feel for you form the bottom of my 74.......Which is where that friggin cor is located....The car is definently built around the heater Core!!!!!!!!!!!!!!!!!!!!!!!!! :mad :mad :mad :D
Burning Brakes
Joined: Dec 2000
Posts: 1,183
Likes: 2
From: Des Moines Iowa
Re: My 1978 SA just got jealous (thejaf)
The factory heater core shut off valve operates off of vacuum supplied when A/C is turned on. The vacuum shuts off water supply to heater core, even with this in the 'off' position, you'll still have coolant in the heater core which can and will leak, from the return hose side, so only way to stop the leak is to close off both hoses to the heater core. I would not trust that the factory vacuum operated valve completely stops ALL coolant flow to the heater core anyway.
