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#1 |
Join Date: Apr 2018
Location: Philadelphia, PA
Posts: 2
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Did the heater core on my car over the weekend, started out following some of the YouTube vids and ended up finding easier ways to get it done. Threw together a write-up if anyone needs it.
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#2 |
![]() Join Date: Aug 2021
Location: Bradenton, FL
Posts: 136
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Great info, thank you posting that!
Jay |
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#3 |
![]() Join Date: Jan 2021
Location: Beautiful Bavaria
Posts: 523
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Thanks for sharing! I went through this some time ago. And I have to admit that I have absolutely NO idea how you managed to remove the heater core housing cover with that nasty tube in place. Congratulations you found a way!!!
In my case, even with every bit and piece removed and the hose loosened (I went the long run and did not cut the tube) it was next to impossible to pull that cover. Speaking about a 91. I had to get the tube out of my way in order to proceed. To be clear: I didn't have any issue to access all screws. Easy going with all braces removed. But (on my 91) that hose is one single piece that runs straight from the heater core into the driver side footwell and fully locks the cover in. AND it has a nozzle attached to it that reaches into the heater core housing. How did you overcome that? Don't get me wrong - I don't doubt you made it. Just want to understand how ![]() VideoCapture_20231010-221641.jpgVideoCapture_20231010-221624.jpg
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ZR-1 #638/1991 Last edited by Matt B; 10-11-2023 at 01:30 AM. |
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#4 |
![]() Join Date: Dec 2003
Posts: 475
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Nice first post. Welcome to here.
George |
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#5 | |
Join Date: Apr 2018
Location: Philadelphia, PA
Posts: 2
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Further disclosure - I'm a car audio guy, I've never met a dash I couldn't reverse engineer so what seemed intuitive to me may be a nightmare for everyone else. Last edited by SteveCS; 10-11-2023 at 11:27 AM. |
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#6 |
![]() Join Date: Jan 2021
Location: Beautiful Bavaria
Posts: 523
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Haha, I'm a car audio guy, too. We have skills and can bear pain levels other guys can't.
But that nozzle particularly drove me CRAZY when trying to get it back in place. Removal was okay as things tend to simply fall off at a certain point. But reinstalling it was a challenge. I wish I could have seen how you made it and learn [emoji106]
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ZR-1 #638/1991 |
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#7 |
![]() Join Date: Jan 2006
Location: Decatur, AL
Posts: 1,112
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Great post. As I understand it, the 94-96 C4 heater box is easier to access than the early ones and if you have to do the heater core, it is recommended to replace the early box with the later box. Mirrock Corvettes had a big write up about it. I have a later box ready just in case.
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Corvette95 Registry and Forum (*************) 1989 C4 Conv Wht/Gry Auto Hardtop Top Flight SOLD 1995 C4 Coupe Purple/Blk 6 Speed 1989 C4 Conv Wht/Red Auto SOLD 1996 C4 Conv Black/Tan Auto SOLD 1994 C4 Coupe Wht/Blk SOLD 1995 C4 ZR-1 White/Gry #278 Dual Dunn Head SOLD 1986 C4 Coupe Black/Red 4+3 SOLD 1990 C4 ZR-1 Red/Red #0454 |
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#8 |
![]() Join Date: Aug 2015
Location: Pittsburgh, PA
Posts: 152
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Thanks SteveCS, Saving for future reference.
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Roger 1990 ZR-1 #2699 Black on Black 15,000 miles Full-time secondaries, 4.10 gears, C-beam plates, ported top end |
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#9 |
![]() Join Date: May 2010
Location: Japan
Posts: 3,575
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Thank you Steve CS. I need to do this soon on my 95. I?m sure I?ll owe you a few beers for this if you?re ever in Hawaii or Japan. [emoji1360]🤙🏼
Sent from my iPhone using ZR-1 Net Registry
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Craig "ZR-1 NO KA 'OI" "ZR-1 ICHIBAN" 1995 #228 Black/Black with Dunn Heads ZR-1 owner since September 2003 ZR-1 Net Registry Founding Member #0074 NCM Lifetime Member #2048 ![]() |
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#10 | |
![]() Join Date: May 2010
Location: Japan
Posts: 3,575
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I am praying you are correct for my 95. I don?t know the difference, but I need to remove the bypass hose and just do this soon. Sent from my iPhone using ZR-1 Net Registry
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Craig "ZR-1 NO KA 'OI" "ZR-1 ICHIBAN" 1995 #228 Black/Black with Dunn Heads ZR-1 owner since September 2003 ZR-1 Net Registry Founding Member #0074 NCM Lifetime Member #2048 ![]() |
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