1st Generation 1964 1/2 - 1973 - Questions & general discussions that apply to a specific year > 1969 Mustang
Heater Box
J_Speegle:
--- Quote from: 67gtasanjose on April 19, 2016, 08:17:41 AM ---A few things I'd like to mention/ask: (this topic being adapted for use on my 67 with Select-Aire)
1.) I believe the sealer used between the two halves of the case was black strip-caulk (like 3M sells). Unless otherwise suggested NOT to use this, my plan was to roll out a very thin strip and level it off in the groove of the one side of the case.
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What I've used
--- Quote from: 67gtasanjose on April 19, 2016, 08:17:41 AM ---2.) I am also ready to glue my new foam onto the internal doors ...............
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Test first. Have found some of these thin open foam sheets will desolve quickly using the wrong type or too much adhesive. Happens fast with some thin sheets - Poof!!!
--- Quote from: 67gtasanjose on April 19, 2016, 08:17:41 AM ---3.) If the case halves looks reasonably clean, should I avoid "clear coating" them if at all possible? (keep in mind the 67-68 AC case is visable under the dash/glovebox area so I want this to look sharp)
Any other good idea before I go together?
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If the case is very nice - grain visible, no repairs, smooth flat exterior surface I thing I would not use a clear. On the back side I would test to see what Back to Black will produced when applied. Can restore the deeper, consistent finish on plastic pieces (used it on console bodies and other plastic items around the car. May require (depending on how the car is stored and local condition, reapplying once a year or before an important show to the visible area.
I would at least give it a try. There are a number of others here that have done some nice examples of the 65-68 non-AC heater housing. Their threads might mention what they used or hopefully this will respond here.
67gtasanjose:
OK....Cross my fingers & SHOOT it!!!
The "gasket" or "foam" kit I have does NOT have anything for the heater core but is complete on everything else (except adhesives or other sealants).
For the heater core, I removed, & cleaned the 2 side seal & end seals. Using "The Right Suff" (trademark name by Permatex), I secured them within a clamping fixture onto a new copper/brass heater core. I had a NOS C9 heater core but the end seals were not exactly the same (heater core is the same).
For the installation of the foam (silver in color) onto the doors, I used 3M Super 77 Multipurpose Adhesive, since it claims will work on foam. I masked off areas of the door where the foam did not cover, sprayed a light coat onto a wiped-down-clean, rust-free doors. (cleaned using lacquer thinner & rag), light coat of spray on the door and a very light spray on the attaching surface of the foam. It stuck down VERY well. I hope it all stays.
The top half of my case, after removing all rust & repainting all items originally painted, (all masked in place, I did not remove any of the factory rivets) I cleaned good as I could with Simple Green, avoiding the paper tag & "8 CYL" ink stamping. I masked those off with a reversed tape-over-tape & duct tape to keep it water tight during this step. Afterwards, I used some WD-40 sprayed onto a rag & wiped down the unpainted fiberglass case. This looks very good so I will do the same steps to the lower case too.
(not liking this particular task...much [corrosion] damage from rodent urine)
Something else I noticed while taking this all apart, where the AC/Heater fresh air inlet to the cowl connected, there was a rather large glop (about 1 inch wide) of sealant (caulking) towards the left of the opening that looks like the cowl must have been leaking either at the factory or possibly an early service fix. You can see the outline of the glop in the photo attached. This might explain a bit of why there was so much more rust on the inside of the passengers floor than anywhere else on the floorpan. It looks like the glop forced any leakage to behind the cowl insulation and down under the carpeting. A real nice hack-job "FIX"...must have been before Duck Tape ;)
krelboyne:
The foam end caps are reproduced by Scott Drake. Two different part numbers, one set for 'with A/C', the other without.
J_Speegle:
Discussion of 67-70 AC/Heater vacuum pod finish was split off and is posted here
http://www.concoursmustang.com/forum/index.php?topic=15897.0
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