ConcoursMustang Forums

1st Generation 1964 1/2 - 1973 - Questions & general discussions that apply to a specific year => 1969 Mustang => Topic started by: krelboyne on September 03, 2013, 08:32:41 PM

Title: Original Air Conditioning - Liquid or Site Glass Hoses
Post by: krelboyne on September 03, 2013, 08:32:41 PM

Sorting through our used A/C hoses I came upon these differences between 1969-70.
Three different styles of site glasses.  Small square (marked with lot _658) opposite end has a jog, Small rounded square (marked with lot 3108) opposite end has a jog. Small rounded square (marked with lot 3049) opposite end is straight. Big site glass, opposite end. Is it safe to say that the offset ends were a carry over from 1968? These all have the barbed style (non-flared) lines to the firewall.
(http://i174.photobucket.com/albums/w115/CougarCJ/th_IMG_0763-1028_zpsa95c03fd.jpg) (http://s174.photobucket.com/user/CougarCJ/media/IMG_0763-1028_zpsa95c03fd.jpg.html)
(http://i174.photobucket.com/albums/w115/CougarCJ/th_IMG_0767-1028_zpsdd3ea5cb.jpg) (http://s174.photobucket.com/user/CougarCJ/media/IMG_0767-1028_zpsdd3ea5cb.jpg.html)
Anyone know which came first and any cutoff dates?  These would have come from and 1969 Cougars (built in both Dearborn and San Jose thru Nov 1968) and 1970 Cougars (only built in Dearborn).

Title: Re: Original Air Conditioning - Liquid or Site Glass Hoses
Post by: TLea on September 04, 2013, 08:22:02 PM

Scott,
 I dont think its a left over from 68. 67/68 used a flared end. 69 uses O ring. Our 4/15 dearborn has the offset end

Title: Re: Original Air Conditioning - Liquid or Site Glass Hoses
Post by: krelboyne on September 04, 2013, 10:58:33 PM

Quote from: TLea on September 04, 2013, 08:22:02 PM

Scott,
 I dont think its a left over from 68. 67/68 used a flared end. 69 uses O ring. Our 4/15 dearborn has the offset end

I realize that they used the barbed fittings starting in 1969. The hose end style with the jog appears to have been used early?

Title: Re: Original Air Conditioning - Liquid or Site Glass Hoses
Post by: TLea on September 04, 2013, 11:40:27 PM

I think the hose change probably came with the evaporator change (Feb?)

Title: Re: Original Air Conditioning - Liquid or Site Glass Hoses
Post by: krelboyne on September 05, 2013, 12:48:20 AM

I have 4 different versions of this hose. Two with the offset fitting, and three with distinctly different site glasses.

Title: Re: Original Air Conditioning - Liquid or Site Glass Hoses
Post by: J_Speegle on September 05, 2013, 11:49:15 PM

My resources are limited and not all provide clear pictures of this detail. But here is what I can offer to your effort in this example

First the narrow style (two different versions) are often difficult to determine in the pictures. Most looked like they had square corner though this might not be the fact. Sorry

Also tried not to look at restored examples for obvious reasons ;)


Narrow square
9F02S108xxx
9F01F1078xx
9F01H1196xx
9F91H5846xx

9R02F1101xx
9R02F1118xx
9R02M1227xx
9R01H1474xx

0F03H1237xx
0F05M1191xx

Narrow tapered
0F05Mxxxxxx

Large Square
9F93M5469xx
9F94S5348xx

9R02Q1488xx (restored car)
9R02H1905xx
9R91H5058xx

0F05M1221xx

Firewall end - Straight
9F01F1365xx (Dec)
9F02M192xxx
0F05Mxxxxxx

Firewall - Curved
9R02F1101xx (Oct)
9R01H1148xx (Oct)
9R01H116xx
9R03F1144xx

Title: Re: Original Air Conditioning - Liquid or Site Glass Hoses
Post by: krelboyne on September 06, 2013, 07:17:35 PM

Jeff, that makes some sense, the early cars had the jog. One of my buyers, indicated to me that the "Lot" numbers were dates. Julian calendar for first 3 numbers, and the last number indicated the year. Does that hold true?