hot hot hot
Thread Starter
Intermediate
Joined: Dec 2005
Posts: 33
Likes: 0
From: Waukesha Wisconsin
hot hot hot
hey everyone quick ? when iam driving my 73 under the dash gets very hot and makes it uncomfortable to drive any thoughts or dose everyone think the insulation is gone its the original stuff from 73 i assume the carpet is the car is all original inside the rest of the car has had a full frame up this is the only thing that still puzzles me 
thanks J
thanks J
Melting Slicks
Joined: Sep 2000
Posts: 2,404
Likes: 418
From: Chester Virginia
install a foam collar between the transmission and the fiberglass body tunnel. then put some type of install on the underside of the tunnel. Both of these items were factory items. Also there was no heater cut off valve so hot water will always be flowing thru the heater coil and heat up the interior. I put a valve in the supply line. The last item I have done is to replace the weatherstripping between the hood and the top edge of the firewall. A poor seal will allow the hot engine compartment air to enter the HVAC plenum and come out the aie registers.
Roger
Roger
Roger
Roger
NCM Grand Opening Veteran
Joined: Sep 2005
Posts: 20,979
Likes: 384
From: South of giving a damn
St. Jude Donor '11, '17
Yes I think the original insulation has failed, usually it failed the day the car was built. Another thing to check - is your heater core dumping heat into the passenger compartment? You might check that your hot water valve is closed, it may be stuck open. Lots of people put a manual valve in, you'll need one for each of the hoses, but the vacuum valves are available if you need original.
Le Mans Master
Joined: Oct 2001
Posts: 6,798
Likes: 25
From: Pine Bluff Arkansas
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16-'17-'18-‘19-'20-'21
You have a couple of rubber grommets that plugs holes in your firewall. Wires and vacuum lines run through them. Mine were popped out and it was cooking my feet. Larry
