Topic: heater box 67 no A/C

[Fastback2013]

Hello,

I need some confirmations about the materials used inside the heater box of my 67 fastback, no A/C.
In attachment a picture of a 'divider'(see picture 1), which looks that it was clear steel (?) and covered with parts from heater seal.
Is it clear steel? Or is it all plated?
And is it the same finish for :
- heater blower motor wheel (see picture 2)
- attaching bracket heater box to dash (see picture 3, black arrow) 

Another question for picture 3 but red arrow :
Is the bracket itself black paint?
and fixation screw + fixation plate phosphate/oil?

Thanks again for your help.
Kind regards,
Jeroen

[67gtasanjose]

Jeroen, your pictures pretty much establish what was original from factory. Items with remnant of paint were originally painted a semi-gloss black, items showing only rust were originally bare metal.

A heater rebuild kit should provide you with any foam seals that would go on any internal doors or otherwise non-re-usable items. Heater core end foam is usually not included in the kits.

A person MIGHT repaint the internal doors to prevent future rust issues on these parts. Keep in mind a low quality paint inside might not be the best option if you do.

I am currently working over my AC equipped car (very similar for the questions you asked) as you might have seen in another thread. I chose to duplicate the non-paint process using Boeshield (using a wet rag) on the doors & internal bare metal pieces right before assembly. I had the foam on these part where needed before wiping the protectant on.

[Fastback2013]

Hello Richard,

Thank you for answering.
I saw indeed your post concerning your rebuilt A/C heater core, and it was also helpfull.
I already purchased the heater seal kit, but the heather core end foam was indeed not included.
But isn't that only for A/C equipped cars? When dismantling the heater box I did not see any remain of foam on the core itself?
It is a good question wether to paint (or not) the internal doors for future rust.
I think with a 2K paint it must hold for x-year?
For the interior side parts is a 2K paint not better than the Boeshield?
Meaning that once the heater box is closed, I am not planning to re-open that case within a few decades  ?
Am I right concerning black paint on bracket and phosphate/oil for screw/fixation plate?
Thanks in advance for your help.
kind regards,
Jeroen

[67gtasanjose]

Hello Richard,

Thank you for answering.
I saw indeed your post concerning your rebuilt A/C heater core, and it was also helpfull.
I already purchased the heater seal kit, but the heather core end foam was indeed not included.
But isn't that only for A/C equipped cars? When dismantling the heater box I did not see any remain of foam on the core itself?
It is a good question wether to paint (or not) the internal doors for future rust.
I think with a 2K paint it must hold for x-year?
For the interior side parts is a 2K paint not better than the Boeshield?
Meaning that once the heater box is closed, I am not planning to re-open that case within a few decades  ?
Am I right concerning black paint on bracket and phosphate/oil for screw/fixation plate?
Thanks in advance for your help.
kind regards,
Jeroen

Jeroen, your pictures pretty much establish what was original from factory. Items with remnant of paint were originally painted a semi-gloss black, items showing only rust were originally bare metal.

A heater rebuild kit should provide you with any foam seals that would go on any internal doors or otherwise non-re-usable items. Heater core end foam is usually not included in the kits.

A person MIGHT repaint the internal doors to prevent future rust issues on these parts. Keep in mind a low quality paint inside might not be the best option if you do.

I am currently working over my AC equipped car (very similar for the questions you asked) as you might have seen in another thread. I chose to duplicate the non-paint process using Boeshield (using a wet rag) on the doors & internal bare metal pieces right before assembly. I had the foam on these part where needed before wiping the protectant on.

True, as I pointed out in my initial reply.

If going "Concours" (by definition of the forum & potentially other future readers), you would be seeking information on ORIGINAL FINISH, which was bare metal. I gave a popular option to protect bare metal (Boeshield) but yes, GOOD paint on properly prepared metal would exceed the protection of the original bare metal finish and is completely hidden.

[Fastback2013]

I have decided to paint the internal parts with a 2K paint finish with a closest match to bare metal as possible.
The rods that come out of the heater box case will be bare metal with a Boeshield finish.
Thanks for the advice.

I have some questions for applying the seals...
in attachment a picture (004) with the new seals held in place by some tape.
the 2 'pyramid shaped' seals, are they supposed to be on the outside (like done in the picture), or must they be inside?
If they are supposed to be on the outside than I think there would be a problem when mounting them in the 2 cases from the heater box.
in the other picture (picture 4) you can see clearly there is no clearance between the cases?
When they are supposed to be on the inside, then there is a problem with the 'internal door'-> the seals are way to thick for the movement of the 'internal door'.
Or mustn't they be applied at all?

A heater rebuild kit should provide you with any foam seals that would go on any internal doors or otherwise non-re-usable items. Heater core end foam is usually not included in the kits.

-> Is the heater core foam needed for no A/C equipped cars, or is it just needed for the A/C equipped cars?
When looking at the NPD catalogue they only mention A/C cars for 67?

Am I right concerning black paint on bracket and phosphate/oil for screw/fixation plate?

-> is this so?

Again, thanks for all the help.
Kind regards,
Jeroen

[jwc66k]

I have decided to paint the internal parts with a 2K paint finish with a closest match to bare metal as possible.
The rods that come out of the heater box case will be bare metal with a Boeshield finish.

Being that when you are finished the internals are not visible nor will you take the heater apart in the long term, your approach is good but a bit over the top. And bare metal is medium to dark gray in color.

I have some questions for applying the seals...
in attachment a picture (004) with the new seals held in place by some tape.
the 2 'pyramid shaped' seals, are they supposed to be on the outside (like done in the picture), or must they be inside?

Outside on the top and bottom, to keep cold and hot air from mixing.

-> Is the heater core foam needed for no A/C equipped cars, or is it just needed for the A/C equipped cars?
When looking at the NPD catalogue they only mention A/C cars for 67?

NPD lists 67-68 w/o A/C the same as 65-66. The large square foam pieces are for the door, same reason as the top pieces.
I believe the RH bracket that holds the heater to the dash is natural. The problem is when you try to re-install it to the case there are few (none) rivets available to do this. I paint it black (it's difficult to see) and at the least, mask and bead blast the bracket, mask the rivets, paint the bracket black, mask the bracket (after it dries) and pint the rivet clear with a brush. All the internal screws I phosphate, the 14/10X1 1/4 hex screw, 42159-S8, is zinc.
Jim
 

[Fastback2013]

Thanks for your explanation, Jim.
Lots of answers 
I do have another question (did this in purpose, because otherwise it could become chaotic  ?)
The seal with the square hole in it, that is for the inside of the 'external door' which is visible in front of the heater case (named 'A' in the picture)??
But where must the other be forseen (named 'B' in the picture)
I have surged in the Osborn catalogues, but didn't find any explanation concerning the placement of the seals itselfs.
Thanks again for all your help.
Kind regards,
Jeroen

[jwc66k]

The rectangle door foam is for 67 up, the notched door foam is for 64-66.
Jim

[Fastback2013]

Thanks, Jim for that explanation.
I have repaint the 'door' off the heater box.
Can somebody confirm/explain if the seal is correct ( I mean in dimension and placement)?
In attachment picture with alignment that circle is correct, but I need to trim the seal at the border below, but the seal doesn't reach out to the upper border off the door...
Is the seal to short, or where must the seal end?
I think this is important, because when the 'door' is open, everybody can see that seal ?
Thanks for your effort and time,
kind regards,
Jeroen