1964 corvette heater core problem
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From: hampton bays new york
1964 corvette heater core problem
My question is a simple one...the heater core in my 1964 corvette is leaking---do i have to remove the heater in the car to get to the heater core, or can I get it out and replace it from the engine compartment firewall.....a simple question that the books that i have give me no guidance.
thx
Russ
lildrip049@aol.com
thx
Russ
lildrip049@aol.com
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From: hampton bays new york
Johnz
Your had responded a couple of years ago concerning replacing the heater core in my 64 vet. Due to personal issues I was not able to get to this project until now. I have removed the glove box, the reservoir of the radiator, and the battery from the vet. I see the 4 nuts that i need to remove from the engine compartment and the 2 cables that I need to disconnect from the casing and the lower and defroster ducts. My confusion is that there may be a nut above the gas petal that attaches the heater casing to the firewall which i do not see and I do not see how to disconnect the blower motor wires and the resistor wire from their respective connections. Can you again assist me in my challenges..thx russ
Your had responded a couple of years ago concerning replacing the heater core in my 64 vet. Due to personal issues I was not able to get to this project until now. I have removed the glove box, the reservoir of the radiator, and the battery from the vet. I see the 4 nuts that i need to remove from the engine compartment and the 2 cables that I need to disconnect from the casing and the lower and defroster ducts. My confusion is that there may be a nut above the gas petal that attaches the heater casing to the firewall which i do not see and I do not see how to disconnect the blower motor wires and the resistor wire from their respective connections. Can you again assist me in my challenges..thx russ
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From: Washington Michigan
Johnz
Your had responded a couple of years ago concerning replacing the heater core in my 64 vet. Due to personal issues I was not able to get to this project until now. I have removed the glove box, the reservoir of the radiator, and the battery from the vet. I see the 4 nuts that i need to remove from the engine compartment and the 2 cables that I need to disconnect from the casing and the lower and defroster ducts. My confusion is that there may be a nut above the gas petal that attaches the heater casing to the firewall which i do not see and I do not see how to disconnect the blower motor wires and the resistor wire from their respective connections. Can you again assist me in my challenges..thx russ
Your had responded a couple of years ago concerning replacing the heater core in my 64 vet. Due to personal issues I was not able to get to this project until now. I have removed the glove box, the reservoir of the radiator, and the battery from the vet. I see the 4 nuts that i need to remove from the engine compartment and the 2 cables that I need to disconnect from the casing and the lower and defroster ducts. My confusion is that there may be a nut above the gas petal that attaches the heater casing to the firewall which i do not see and I do not see how to disconnect the blower motor wires and the resistor wire from their respective connections. Can you again assist me in my challenges..thx russ
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From: hampton bays new york
heater core
[QUOTE=JohnZ;1586142277]Unless someone before you has removed the nut and stud, it's just about on the centerline of the firewall, and a bracket riveted to the heater case at the extreme inboard end goes over the stud, and a nut secures it - that nut should be driven FIRST when you put the case back in the car. In the photo below of a '64 heater case, the bracket that goes over the stud is at the extreme left end of the picture. [/QUOTE
Thx Johnz..this is the picture that you had sent me....1 last question, did you remove the blower motor under the right fender to take out the inside housing to get to the heater core...russ
[/QUOTEThx Johnz..this is the picture that you had sent me....1 last question, did you remove the blower motor under the right fender to take out the inside housing to get to the heater core...russ
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From: hampton bays new york
vet heater core
No. There's no reason to remove the blower motor - just remove the center nut forward of the radio on the inside of the firewall and the four on the heater case studs on the engine compartment side, and remove the case. The heater core is in the inside case, and you access it by removing the case from the car and working it on the bench. This is a good time to order a heater case seal kit from Dr. Rebuild, as you'll probably find that the foam seals on the diverter doors have all crumbled to dust.
Russ
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From: San Clemente California
Russ, before you install a new heater core, have it pressure tested to insure no pinhole leaks. This was one of my most unsavory projects (67 with A/C) and is not something you want to do twice. A bottle of stop leak into the system when you refill is also a good idea.
Tom
Tom
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From: Colorado
No. There's no reason to remove the blower motor - just remove the center nut forward of the radio on the inside of the firewall and the four on the heater case studs on the engine compartment side, and remove the case. The heater core is in the inside case, and you access it by removing the case from the car and working it on the bench. This is a good time to order a heater case seal kit from Dr. Rebuild, as you'll probably find that the foam seals on the diverter doors have all crumbled to dust.
Alex
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From: hampton bays new york
heater core
Russ, just a heads up - I am in the middle of replacing the heater core on my 67. I did have to remove the blower as there were two nuts attaching the heater box assembly to the firewall. Sounds like it is different on a 64 or a previous owner decided to add a few extra nuts to mine, but if the box doesn't slide out easily, consider taking off the blower.
Alex
Alex
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From: hampton bays new york
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I replaced mine around 15 years ago. at that time replacements were coming out of Mexico and I was told the quality was lacking. just replaced it again and my radiator guy said the quality is worse now than it was 15 years ago. I had him put an American made core between the two end pieces- was a pain to replace the 1st time and I'm not as flexible now as I was then. I called all the parts vendor I could think of and nobody sold a heater core sourced in America. pressure testing 1st is a good idea, getting a core made in America is better. Good luck
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From: hampton bays new york
64 vet heater core replacement
I replaced mine around 15 years ago. at that time replacements were coming out of Mexico and I was told the quality was lacking. just replaced it again and my radiator guy said the quality is worse now than it was 15 years ago. I had him put an American made core between the two end pieces- was a pain to replace the 1st time and I'm not as flexible now as I was then. I called all the parts vendor I could think of and nobody sold a heater core sourced in America. pressure testing 1st is a good idea, getting a core made in America is better. Good luck
