Bullet Bob wrote:

JB Weld or RTV...and don't forget a coat of Rustoleum 7777.

Since the knob  is plastic, maybe some super glue.

BB

 
I should clarify. Not just the knob/button but the shaft as well that is attached to it. From the quick look I took it looks like it's crimped or attached to the cable that pulls the vent open. JB or RTV could work though. I'll take a better look and see how it's affixed. Thanks.

Last edited by dwalker2 (9/14/2013 6:20 PM)

I am giving a serious look at the Vintage Air System for my 65. Have you had experience installing this MS, or is this your first time working with it?

The left vent could be left in place if desired.  If I want fresh air, I have windows!  I found the kit to be very well engineered.  It took me about three days to install it.  I still have not got freon in it since the engine has not run, but it has been holding vacuum for several days.  They use o-rings on everything.  If there is any complaint it is the air registers.  While functional, they are a little less quality than I would really like to have.  But, the thing does blow a good volume of air, so if it makes cold air in the box, it should be able to cool the car.  I spoke with several people about their ac units at car shows and this one was the one most used.  And they all siad they did not have to run it on high to cool their cars on 100 degree days.

One other minor complaint.  They use very cheap bolts.  I replaced them with original Mustang fasteners.  And, if I was going to install one again, I would weld the two firewall bolt heads to their brackets so they would not turn or fall out during installation.  They supplied some push-lock washers to hold the bolts while installing to the firewall, and it is very hard to get the two bolts to line up with the holes. The push lock washers kept sliding, and once I got it together, it was very difficult to get a wrench on the heads of the bolts while Sherry tightened the nuts under the hood with a ratchet.  If I had welded them to the brackets, alot of effort could have been avoided.  Also, on those same two bolts, I replaced them with Mustang bolts having the dog-point on them, where the supplied bolts were plain bolts.  If not for the dog points, I would probably still be out there trying to get them through the holes it the firewall.  I used the dog points to hold a 4" long piece of steel 1/4" tubing, with one end of the tubing on the dog point, and other end in the firewall hole.  Then I just pushed the unit to the firewall.  When I heard the tubing fall out onto the ground, I knew the tubing had guided the bolts into the holes.  It was next to impossible until I figured out that trick.

Oh, also need to insulate the firewall before installing.  There is no insulation where the heater box used to be, and there is a 1" gap between the new box and the firewall.