Pulling Heater core.
Thread Starter
Burning Brakes
Joined: Feb 2007
Posts: 779
Likes: 0
From: San Bruno California
Pulling Heater core.
Where ( inside or outside in engine comp. ) is the heater core? If it's in the engine comp. is it easier with the motor out. How hard is it? Waiting for my manual. Thanks, Tony
Melting Slicks
Joined: Dec 2000
Posts: 3,363
Likes: 303
From: Lansdale 19446 PA
2024 C3 of the Year Finalist- Unmodified
St. Jude Donor '10-'11, '15, '19
The heater core is accessible from inside. When I did my 69, I clamped off the 2 heater hoses and removed the hoses from the core. Once the hoses were disconnected, I removed the passenger side dash pad. I believe there were a couple bolts/nuts I had to remove on the engine side of the firewall. Then the inside duct work to gain access to the core.
One word of advice - pressure test the core before you install it in the car. I put a new core in my 78. The only leak when I did my engine break in was the new heater core!
One word of advice - pressure test the core before you install it in the car. I put a new core in my 78. The only leak when I did my engine break in was the new heater core!
Thread Starter
Burning Brakes
Joined: Feb 2007
Posts: 779
Likes: 0
From: San Bruno California
I have the engine out now, does that make things easier? If I can wait, I don't want to go off on too many different things. The last owner had put some silicone radiator stop leak. Had the radiator checked thinking that all I need was flushing, but the guy said that my rad. would not make it because of the silicone blocking some of the core. So it makes me wonder about the heater core. So can it wait or having the motor out helps? Thanks
Le Mans Master
Joined: Oct 2005
Posts: 9,429
Likes: 44
From: Macon, GA
