Heater box restoration and seals Q's

walkerjay
21st-August-2009, 12:23 AM
Three questions: can someone help identify where exactly these pieces go?
I am working with a small block, non a/c car.

Seems the large rectangular seal #2 goes between the core itself and the interior of the box, part #3 may be for big block car and not needed for my app, part #6 seems like it will go over the core tubes at the interior of the box, the other pieces I am not sure about.

http://i79.photobucket.com/albums/j151/walkerjay/interior/heater_box_seals_kit.jpg

Secondly, there are three "flaps" in the heater box and I can not for the life of me figure out how to disassemble them for refurbishment.

Last, at the interior of the box where the heater core goes, there are two small white rubber "bumper" type pieces. Are these to help secure the core in place? Mine are pretty beat up but I will probably leave them be.

thanks

benl
21st-August-2009, 08:50 AM
i beleive you are correct on number two, and number 3 goes on the firewall where the heater core in/outlet line runs thourgh, on the engine compartment side i beleive.
not sure on the dissasembly, was wondering that myself.

walkerjay
21st-August-2009, 12:06 PM
i beleive you are correct on number two, and number 3 goes on the firewall where the heater core in/outlet line runs thourgh, on the engine compartment side i beleive.
not sure on the dissasembly, was wondering that myself.

I can easily put #3 on there when the core is in and see how it looks or even better, just browse some pics and see if I see it. See?

Yea, it looks like the flapper pins are permanent. I can not see an easy way to remove them. For now, I am getting in as much as possible with a wire brush and drill brush for clean up. I put pad #5 on the inside of the large flapper door and it was too big and prevented the door from closing all the way. I see no way to mount it to the outside (should that be correct) without removing that large flapper door. that door, btw, has a head at one end of the pivot and a permanent arm at the other...no way to remove it.

#7 may be for the interior of the long skinny flapper that controls whether air moves downward or upward, to the windshield. that is the only original material left in my box and its on the interior and stapled in. I can't seem to access it and may just leave it be.

NovaSS396L34
21st-August-2009, 03:19 PM
I've restored a couple of these already. These pics are from my big block.

http://www.chevynova.org/RonBentz/RonBentz191.jpg

http://www.chevynova.org/RonBentz/RonBentz192.jpg

http://www.chevynova.org/RonBentz/RonBentz193.jpg

You can pull the smaller flapper door out. I glued the foam on the flapper doors.

walkerjay
21st-August-2009, 04:38 PM
Are you saying ONLY the small flapper door can be removed? If so, how? thanks.

Is your heater core upside down in that pic???

NovaSS396L34
21st-August-2009, 05:27 PM
Are you saying ONLY the small flapper door can be removed? If so, how? thanks.

Is your heater core upside down in that pic???

It is like a pin from what I remember. I think it tapped it out with a hammer to get it started. No my heater core is not upside down. It is a Big Block car so the tubes come out of the center of the core in the firewall. I don't think I was able to take out the larger door. It's been a couple of years since I've restored one. I'll have to go outside and see if I have one that is restored. I restored one for a friend who is restoring a 1970 Nova and we still haven't started the re-assembly. The big block cores also have a foam piece that his taped in like in this picture.

http://www.chevynova.org/RonBentz/RonBentz194.jpg

walkerjay
21st-August-2009, 05:43 PM
Cool. Thanks for the info. I did give the small door pin a few taps but it didn't budge and I didn't want to force it. Currently, it's soaking up some PB Blaster so I'll try it again. Thing is, the foam on THAT door is fine.

Do you know if the larger flap door inside the main cavity gets foam on the heater core side or the inside (non-accessible) side of the box?

NovaSS396L34
21st-August-2009, 06:12 PM
From what I remember it wraps around both sides.

walkerjay
21st-August-2009, 09:49 PM
From what I remember it wraps around both sides.

Hmmm, this stuff I have is pretty thick and not sure there is enough material anyway. I may just forget the flapper seals altogether. So what if I get a little air leakage....

Crazyjake
22nd-August-2009, 12:47 PM
I believe #1 and #9 goes to the Y duct. #9 goes between the heater box and the Y duct. #1 between Y duct and defrost outlets.

walkerjay
22nd-August-2009, 01:49 PM
I believe #1 and #9 goes to the Y duct. #9 goes between the heater box and the Y duct. #1 between Y duct and defrost outlets.

I didn't even consider #1's going up top of the Y duct. I'll scope it out. The assembly manual shows a sealer strip that does not completely go around the top of the duct, just 3 sides. But if they seal the perimeter , all the better.

I was able to get the narrow flapper door out. The pin just needed some persuasion. Still baffled on how to remove the others. No pun intended.

walkerjay
22nd-August-2009, 03:23 PM
YES, PARTS #1 fit between the y duct and dash, very nicely I might add.

Part #7 fits the long skinny flap door, the one I was able to pull out.

we're getting there.