'67 AC duct work to vent mechanism clamp?

[Garry B.]

What type of connector was used for connecting the cloth duct work to the AC vent mechanism? Was there a specific clamp used or were they just slipped on over the end of the vent mechanism. To be clear, this would be easiest seen on a factory AC car under the drivers side dash and just above the accelerator and brake pedal. Thanks. Pics would be great.

[Leif A.]

Re: '67 AC duct work to vent mechanism clamp?

Garry,
According to the A.I.M. UPC C60, A3 there are no clamps shown to be used. On my '67, I have one clamp on the upper hose (just cuz), though, probably unnecessary. Picture below.

[Garry B.]

Re: '67 AC duct work to vent mechanism clamp?

Leif, I did notice that there wasn't mention of any clamps in the AIM, but it's a coincidence that I looked at an older Duntov '67 a few weeks ago and there were Witek clamps at these points and they looked to have been there for a long time. The coincidence is mine also have the same clamps and same locations although my car has not been judged yet and did receive a frame off. Interesting that they both used the same clamps and locations. Thoughts from anyone else?

[Bill M.]

Re: '67 AC duct work to vent mechanism clamp?

Garry my 67 has the Witek clamps and cloth type duct hose. I am sure all is original.

[Garry B.]

Re: '67 AC duct work to vent mechanism clamp?

Garry my 67 has the Witek clamps and cloth type duct hose. I am sure all is original.

Bill, that is interesting to say the least. Although my car did receive some interior restoration during the frame off, so far it appears as though it was reassembled with the original parts including these band clamps. The older Duntov I looked at (although he has not gotten his judging sheets yet from Greenville) did not receive any point deducts for these. Could the clamps have been added on later production cars? Mine is Mid-May. What is your production date?

[Bill M.]

Re: '67 AC duct work to vent mechanism clamp?

well garry if i remember correctly my car a coupe was May 5 1967 # 18149 . I wonder if the duct was prone to separating from the plenum when new? so the dealers added a clamp to solve that complaint? My car came from Texas and the second owner told me he ran the AC all the time. The reason i say when new is i had the whole interior system apart this past winter trying to get the speaker out and the duct hose's were frozen in shape and sure needed no clamp to stay on. I put the clamps back. I gave up on the speaker. next winter

[Garry B.]

Re: '67 AC duct work to vent mechanism clamp?

Bill, mine is exactly one week later than yours, May 12th. I will check with the owner of the Duntov car for his production date and see if we also get any additional responses pro or con on the clamps. My thought is if the dealer did yours, it would be somewhat coincidental if my dealer did mine and his dealer did his. I wonder if there was a GM communication to dealers about this and how to rectify the situation or if indeed the clamps were put on during assembly in the factory.

[Keith B.]

Re: '67 AC duct work to vent mechanism clamp?

Garry my 67 has the Witek clamps and cloth type duct hose. I am sure all is original.

So does my dads 67 it was built in may as well

[Leif A.]

Re: '67 AC duct work to vent mechanism clamp?

Leif, I did notice that there wasn't mention of any clamps in the AIM, but it's a coincidence that I looked at an older Duntov '67 a few weeks ago and there were Witek clamps at these points and they looked to have been there for a long time. The coincidence is mine, also, have the same clamps and same locations although my car has not been judged yet and did receive a frame off. Interesting that they both used the same clamps and locations. Thoughts from anyone else?

Pictures of what you have would be nice. My car is a June 14 build.

[Peter M.]

Re: '67 AC duct work to vent mechanism clamp?

My car has the old cloth hoses and no clamp. I think it should have the clamp. The aim shows the clamp.
Years ago I had another 67 air conditioned coupe and I am quite certain it had the clamps.
Kind regardsIMG_0995.jpg

[Bill M.]

Re: '67 AC duct work to vent mechanism clamp?

I will try to get a couple of pictures tonight

[Leif A.]

Re: '67 AC duct work to vent mechanism clamp?

My car has the old cloth hoses and no clamp. I think it should have the clamp. The aim shows the clamp.
Years ago I had another 67 air conditioned coupe and I am quite certain it had the clamps.
Kind regards[ATTACH=CONFIG]111906[/ATTACH]

Pete,
Could you share with me where you see in the AIM that there are clamps installed on the special A/C hoses. According to the picture of the AIM page below UPC C60, A3 there are "tangs" molded into the duct assemblies to hold the "special" hoses in place. No indication of clamps.

[Garry B.]

Re: '67 AC duct work to vent mechanism clamp?

Here are a couple of mine. I just noticed that the hose leading to the upper center console vent does not have one, but the ones leading to the drivers side has one at both ends.

[Leif A.]

Re: '67 AC duct work to vent mechanism clamp?

Here are a couple of mine. I just noticed that the hose leading to the upper center console vent does not have one, but the ones leading to the drivers side has one at both ends.

Garry,
Notice, in your pictures, the "tang" on the far left side of the hose on the left side A/C duct. The hose should be pushed over that "tang" and is, then, held in place by that "tang". There are four of those "tangs" around the circumference of the ducting.

[Garry B.]

Re: '67 AC duct work to vent mechanism clamp?

Leif, yes I see that. What I can't explain is the response from several owners of unrestored cars with the clamps.