1980 heatercore replacement
Melting Slicks
Joined: Jul 2005
Posts: 2,740
Likes: 3
From: Aurora Ontario
I just went back and looked at your pictures. Is your dash one Piece? I have never seen that. My passenger side and driver side is separate.
If its one piece I wouldn't take it out. I would loosent the screws on the passengerside door jam so you can pull the dash out enough on the bottom to free the duct which is probably in your way.
Last edited by jdp6000; Sep 22, 2009 at 08:07 PM.
Thread Starter
Melting Slicks
Joined: Oct 2008
Posts: 2,154
Likes: 69
From: Regina Sk Canada
Well its been a week and still no luck? I have all the duct work out, and still cannot find any bolts to remove the box? Looks like the dash will have to come completely out to get this done.
Le Mans Master
Joined: Mar 2001
Posts: 6,640
Likes: 287
From: Ann Arbor Michigan
Gary
Safety Car
Joined: Nov 2004
Posts: 4,359
Likes: 57
From: Mundelein Illinois
Remove the glove compartment door and the passangers side air duct. The heater core comes out from the inside of the car, you do not have to remove anything from the outside. There are a few bolts that have nuts on them on the outside of the heater/AC box you need to remove. I just finished a 78 and I did my 81. This job is not that bad compared to others I have done.
It's fine that you have the center section out, you need that out to remove the larger duct.
Remove the box on the right. where you see the brown/rust on the heater door
It's fine that you have the center section out, you need that out to remove the larger duct.
Remove the box on the right. where you see the brown/rust on the heater door
Last edited by spedaleden; Sep 25, 2009 at 04:03 PM.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
Thread Starter
Melting Slicks
Joined: Oct 2008
Posts: 2,154
Likes: 69
From: Regina Sk Canada
I got the bastard out.Now do i need to install the hoses first before i drop it back in? what is the trick to that. i had a hell of a time getting the clamps off from under the car.
Le Mans Master
Joined: Mar 2001
Posts: 6,640
Likes: 287
From: Ann Arbor Michigan
Thread Starter
Melting Slicks
Joined: Oct 2008
Posts: 2,154
Likes: 69
From: Regina Sk Canada
Just frustrating, the glue and weather striping on the back of the box held it in place making it feel like there were some bolts not out yet.
Will get it back in place this weekend. Thanks for all the help.
Will get it back in place this weekend. Thanks for all the help.
Thread Starter
Melting Slicks
Joined: Oct 2008
Posts: 2,154
Likes: 69
From: Regina Sk Canada
Well its all back in this morning, i also ran a new bead of duct seal on the engine compartment side. I have finished washing all the plastic duct work, and will have to make a few tabs and secure it ll back in place.
Steps i took.
1-remove Passenger seat & glove box door and inner compartment.
2-remove the 2 dash screws in the door jam.
3-remove gauge cluster radio and center consul.
4-remove all plastic duct work under dash.
5-remove all air lines and one heat control cable off of top of heater box.
6-remove inside heater box screws, 2 lower easy to see and one top right.
7-remove 3 engine compartment nuts and one screw. one easy to see 3 under fender. cut heater hoses off core from under car after removing clamps.
8- gently pry heater box off from inside of car, the 2 way tape holds pretty good and
makes it feel like there is still a bolt there.
9-there is a little bit of twisting to get the box out, this requires the dash being loose on the pass side.
I got frustrated and a bit pissy with it, but now that i have done one, i know how to do it and its not that bad. I hope this helps the next guy doing it.
Steps i took.
1-remove Passenger seat & glove box door and inner compartment.
2-remove the 2 dash screws in the door jam.
3-remove gauge cluster radio and center consul.
4-remove all plastic duct work under dash.
5-remove all air lines and one heat control cable off of top of heater box.
6-remove inside heater box screws, 2 lower easy to see and one top right.
7-remove 3 engine compartment nuts and one screw. one easy to see 3 under fender. cut heater hoses off core from under car after removing clamps.
8- gently pry heater box off from inside of car, the 2 way tape holds pretty good and
makes it feel like there is still a bolt there.
9-there is a little bit of twisting to get the box out, this requires the dash being loose on the pass side.
I got frustrated and a bit pissy with it, but now that i have done one, i know how to do it and its not that bad. I hope this helps the next guy doing it.
Last edited by Grumpy 427; Sep 27, 2009 at 01:08 AM.
