Trying to figure out where the drivers side vacuum tubing goes through the firewall. The 68 assembly manual shows the tubing going through but it doesn't locate the correct spot. Can someone with an original 68 Camaro with factory ac take a picture and email me; or, try to describe. Thanks! :confused:

I'm almost finished removing stuff from my firewall. I'll take a picture and measurements of where the tube comes through then post them tomorrow morning.

As promised:

big picture:
wide view (http://bsi-solutions.net/CamaroPics/vac-fw.JPG)

Horizontal measurement (reference - top passenger side stud of vacuum booster mount):
horizontal measurement (http://bsi-solutions.net/CamaroPics/vac-hor.JPG)

Vertical measurement (reference - wiper motor bolt):
vertical measurement (http://bsi-solutions.net/CamaroPics/vac-vert.JPG)

[ 10-02-2003, 07:07 AM: Message edited by: basscat ]

That's great. Exactly what I needed. graemlins/hurray.gif

Can you do me another favor. I need the same measurements for the lower holes on the ac suitcase side of the firewall. When I put the ac opening in, I closed the holes and don't know exactly where they should be. I left the heater core holes but need to line up the bottm holes. Thanks again!

I will try to get them this weekend then I'll post Monday morning.

The camera went on an unexpected trip this weekend. I should have it back tonight and will post tomorrow.

Sorry

No problem. Time is not the issue. graemlins/beers.gif

I think the key is to use two reference points for initially mounting the suitcase; such as, stud #3 and the support bracket opening at hole #1 (see pictures). From that point, you can mark and drill the other holes based on where the suitcase sits up against the firewall. Good luck! :cool:

Here's an overview picture:
overview (http://bsi-solutions.net/CamaroPics/firewall-ac-box-holes.jpg)

Here's a close-up of hole#1:
hole #1 (http://bsi-solutions.net/CamaroPics/lower-pass-side-seam-hole.jpg)

Here's hole #2's distance from hole #1:
hole #2 (http://bsi-solutions.net/CamaroPics/lower-holes-beside-seam.jpg)

Here's a shot of the driver's side studs:
sutds (http://bsi-solutions.net/CamaroPics/studs.jpg)

Hey basscat, thanks for all your help. These pictures are great. When looking at the overview picture, there is a hole to the lower left of the lower heater core tube. What is that hole for and can you provide another of your great pictorials?

Bad news - I don't know what the hole to the lower left of the lower heater core tube is for. At this point, I'm guessing it is for a splash guard but I don't really know. I don't remember unbolting anything from there.

Does anybody else know?

http://bsi-solutions.net/CamaroPics/firewall-ac-box-holes.jpg

Just a hunch but could that hole be for a firewall pad fastener?

Hey basscat, my inner box has a stud in that location. I drilled the hole figuring at the worst I would put a firewall retainer plug in the hole. After drilling, I took my innerbox and placed it against the firewall and a stud on the inner box lined up. Again, I'd like to thank you for all your help.
Also, I am starting another post about the acvfittings for a 68 BB Camaro. If yo know any of the answers, please chime in.

That means I'm missing an inner stud. Thanks for the update and you're welcome for the assistance. I've gotten my share while searching the archives and posting questions.

I saw your reply where you're using DP90 on your firewall because the POR15 didn't suit you. I learned the same lesson and should have it topcoated by this weekend. Our projects seem to be running in parallel...

If memory serves me #5 is for the heater box. Since the heater box must be removed for heater core replacement this nut/stud must be removed from under the fender. I replaced it with a larger self-tapping sheet metal screw installed from the passenger compartment.

I too have one of the "Magic Boxes" from American Grafiti that's going in this winter.

CarlC are you talking about a heater bos without ac? My car doesn't have hole #5. I was going to ignore it until I had no choice

Yes. I will be removing everything AC related from the firewall forward using the American Grafiti box. Thanks to Brian on finding that part.

It's been a while since I've had my head shoved up inside the fender. I'll try and take a peak and let you know what I find.