Re Heater defrost question

[Wayne P.]

I just took out the radio , clock and glove box and noticed a gap between the heater box and the defrost vent . Looks like about 1/2 inch. I was looking in my repair book but didn't see if their was a rubber gasket required or not. The insulation is also in poor repair. . Thanks for any comments.

[Edward J.]

Re: Re Heater defrost question

Wayne I noted the same on my 63 conv. I think they were pretty crude,I Did not see any signs of a seal when I took my interior and heater apart.

[Harry S.]

Re: Re Heater defrost question

Ever hear the expression, "let your wind blow free". It was kinda that type quality of assembly!

[Wayne P.]

Re: Re Heater defrost question

Maybe wrap it with foil tape ?

[Edward J.]

Re: Re Heater defrost question

Wayne, if you have a Home depot or Lowes, get yourself some of the foam weatherstrip sealer, It comes in all different sizes and widths.The duct tape may show once together.

[Wayne P.]

Re: Re Heater defrost question

Great thanks

[Stuart F.]

Re: Re Heater defrost question

I have not looked at mine in a number of years, but are you sure it is not intended to be that way? Perhaps it is meant to mix ambient air with "treated" air, so to speak.

Stu Fox

[William C.]

Re: Re Heater defrost question

The gap described is "as intended". Owner inspired modifications are as always at the owners discretion.

[Aaron A.]

Re: Re Heater defrost question

Wayne, if you have a Home depot or Lowes, get yourself some of the foam weatherstrip sealer, It comes in all different sizes and widths.The duct tape may show once together.

The above is exactly what I did.

Actually, when comparing the "official seal kit" for my vette I bought, the "regular" weatherstripping sealer worked better.

[Wayne P.]

Re: Re Heater defrost question

Well I don't think I will require the defroster the next time we get snow and ice pelting down : ) Have a great Christmas season. Wish I were in a warmer climate.

[John H.]

Re: Re Heater defrost question

It's designed with that air gap between the case and the defroster yoke on purpose, to avoid noise/vibration from the heater case from being transmitted directly to the main dash panel, which would then amplify the sounds. That was standard Chevrolet design practice for many years.

[Wayne P.]

Re: Re Heater defrost question

Thanks John I will leave it alone.

[Tom R.]

Re: Re Heater defrost question

Thanks John I will leave it alone.

In doing so you'll find that with the defroster on you'll still get some cabin heat through the floor and radio side panels.