duct routing
Thread Starter
Pro
Joined: Nov 2004
Posts: 689
Likes: 169
From: Palm Bay Florida
duct routing
1969 corvette L46 with AC
Could someone tell me what is the proper way to install the under dash ducting on the driver's side?
I assume it runs under the steering column.
Is it installed after the lower drivers instrument panel is in?
Thanks for your help on this.
Could someone tell me what is the proper way to install the under dash ducting on the driver's side?
I assume it runs under the steering column.
Is it installed after the lower drivers instrument panel is in?
Thanks for your help on this.
Team Owner
Joined: Sep 2006
Posts: 31,202
Likes: 4,287
From: Westminster Maryland
Hi b,
I almost hate to reply.
Regards,
Alan
After the dash pad and column are in place and under the steering column. 71 AIM C60, Sheet A7.
ITEM #5
I almost hate to reply.
Regards,
Alan
After the dash pad and column are in place and under the steering column. 71 AIM C60, Sheet A7.
ITEM #5
Last edited by Alan 71; Dec 16, 2015 at 01:23 PM.
Thread Starter
Pro
Joined: Nov 2004
Posts: 689
Likes: 169
From: Palm Bay Florida
I wonder if the center ducting should be installed prior to the driver's side?
Team Owner
Joined: Sep 2006
Posts: 31,202
Likes: 4,287
From: Westminster Maryland
Hi b,
I really think the duct goes 'under' that's why it's shaped the way it is….the drop 'down' of the connection of the center duct and then the 'rise' back up once it gets past the column.
I would think the center duct goes in first…I believe the drawing does show some sense of 'sequence'.
It looks to me that the LH duct is a 'slip fit' in the connection at the center duct and then is held in place at the LH outlet with a screw and u-nut (#3&4).
Regards,
Alan
I really think the duct goes 'under' that's why it's shaped the way it is….the drop 'down' of the connection of the center duct and then the 'rise' back up once it gets past the column.
I would think the center duct goes in first…I believe the drawing does show some sense of 'sequence'.
It looks to me that the LH duct is a 'slip fit' in the connection at the center duct and then is held in place at the LH outlet with a screw and u-nut (#3&4).
Regards,
Alan
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,851
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Under the column.. and you want to hook up the vent side first, then couple them together... it's easier to install it that way. Alan is correct, for the center dash to be installed the center duct must also be there so the center is first.
-Willcox
-Willcox
Last edited by Willcox Corvette; Dec 16, 2015 at 03:32 PM.
Thread Starter
Pro
Joined: Nov 2004
Posts: 689
Likes: 169
From: Palm Bay Florida
Hi b,
I really think the duct goes 'under' that's why it's shaped the way it is….the drop 'down' of the connection of the center duct and then the 'rise' back up once it gets past the column.
I would think the center duct goes in first…I believe the drawing does show some sense of 'sequence'.
It looks to me that the LH duct is a 'slip fit' in the connection at the center duct and then is held in place at the LH outlet with a screw and u-nut (#3&4).
Regards,
Alan
I really think the duct goes 'under' that's why it's shaped the way it is….the drop 'down' of the connection of the center duct and then the 'rise' back up once it gets past the column.
I would think the center duct goes in first…I believe the drawing does show some sense of 'sequence'.
It looks to me that the LH duct is a 'slip fit' in the connection at the center duct and then is held in place at the LH outlet with a screw and u-nut (#3&4).
Regards,
Alan
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Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,851
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
The driver side is the side that was removed and torn way more often than the passenger side... There wasn't much behind the passenger side dash to require that duct to be removed. Higher in/out rate, higher failure rate, less used available.
IMHO,
Willcox
IMHO,
Willcox
Burning Brakes
Joined: Oct 2015
Posts: 1,079
Likes: 95
From: Roselle Illinois
I am expecting my AIM any day now, but can you tell me if the AIM book lists GM part numbers for each part? Specifically #5 the L.H. duct in the above drawing?
Steve
Burning Brakes
Joined: Oct 2015
Posts: 1,079
Likes: 95
From: Roselle Illinois
LH air duct
I didnt see a 1968 LH air duct available in anyones catalog, is this something not available? Or only found as a used item?
Steve
Burning Brakes
Joined: Oct 2015
Posts: 1,079
Likes: 95
From: Roselle Illinois
Drifting
Joined: Nov 2013
Posts: 1,546
Likes: 281
From: Scottsdale Arizona
I don't think it's being reproduced due to the number of 68 Corvettes that came equipped with AC, only 5,664 out of 28,566. I looked around for a long time and finally found one. It was VERY expensive and was far from perfect, but I was happy being able to locate one.