Cabin Heat Mostly Solved
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Joined: Jun 2009
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From: Akron Ohio
Cabin Heat Mostly Solved
I had to have had one of the hottest (temp wise) Corvettes on earth. I've had it for 5 years. It is a 73 4-speed small block L48. I put the heater core shut off valve on a year ago, but still had heat. In doing more research on this forum and other sources, I found 3 things I could do on my own since I'm not a mechanic, but I'm somewhat mechanically inclined.After doing my research and examining my car for the umteenth time, I found out that I'd didn't have 1) a lower shifter boot 2) a trans tunnel foam gasket 3) a hood weather strip gasket. I just finished replacing all three and it made a huge difference. My shifter **** and parking brake area used to be too hot to touch. Today, the shifter **** was actually cool. I don't have any of the reflectix under my carpet, so I still can do that. I just wanted to share and say thanks to anyone who has posted those helpful hints because they sure did help.
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Joined: Jun 2009
Posts: 66
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From: Akron Ohio
I bought that yellow glue, but it was a little too hard to put on the hood by myself because it was so runny. I wound up using black 3m weather strip cement.
Melting Slicks
Joined: Oct 2010
Posts: 2,276
Likes: 337
From: "ɹǝpunuʍop", Adelaide, South Australia
i placed a bright spot light under the engine bay on my 72,
then shut the shed/garage door so it was dark,
then from inside the car, i looked under the dash area for any light showing thru,
looked like a disco under there.... rotten/missing grommets etc.
the main holes i had were where the rubber plugs that hold the top of the carpet up under the pedals were missing.
3 holes about 3/8"dia letting in hot engine bay heat.
plugged them with some grommets, big difference with no hot air in the foot well.
then shut the shed/garage door so it was dark,
then from inside the car, i looked under the dash area for any light showing thru,
looked like a disco under there.... rotten/missing grommets etc.
the main holes i had were where the rubber plugs that hold the top of the carpet up under the pedals were missing.
3 holes about 3/8"dia letting in hot engine bay heat.
plugged them with some grommets, big difference with no hot air in the foot well.
2026 Loser of the Year
Joined: Sep 2013
Posts: 36,573
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From: New Or-leens Loo-z-anna
Install quality heat/soundproofing under the carpet.....you won't regret it!
Using an infrared gun, my floorboards went from 145* with the original carpet DOWN to 100* 0n a 98* day after installing floorboard reflective insulation and new carpet/w/backing!
I didn't even have the kick-panel vents opened
Using an infrared gun, my floorboards went from 145* with the original carpet DOWN to 100* 0n a 98* day after installing floorboard reflective insulation and new carpet/w/backing!
I didn't even have the kick-panel vents opened
Racer
Joined: May 2011
Posts: 373
Likes: 6
From: Dover Delaware
I had to have had one of the hottest (temp wise) Corvettes on earth. I've had it for 5 years. It is a 73 4-speed small block L48. I put the heater core shut off valve on a year ago, but still had heat. In doing more research on this forum and other sources, I found 3 things I could do on my own since I'm not a mechanic, but I'm somewhat mechanically inclined.After doing my research and examining my car for the umteenth time, I found out that I'd didn't have 1) a lower shifter boot 2) a trans tunnel foam gasket 3) a hood weather strip gasket. I just finished replacing all three and it made a huge difference. My shifter **** and parking brake area used to be too hot to touch. Today, the shifter **** was actually cool. I don't have any of the reflectix under my carpet, so I still can do that. I just wanted to share and say thanks to anyone who has posted those helpful hints because they sure did help.
I appreciate your help.......mk's78/Mike
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Joined: Jun 2009
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From: Akron Ohio
