1965 TBird air conditioning...need some help | Ford Thunderbird club group 1955-2005 T-Bird models

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1965 TBird air conditioning...need some help

  • Thread starter Thread starter tonystbird
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tonystbird

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Thunderbird Year
1965
Hi All....am doing a ground up on my 65 but unfortunately for me the prior owner(s) completely gutted the AC system....I have everything rebuilt and have two new hoses...(there is no engine in the car at this time)...the new thicker diameter hose from the evaporator to the compressor is precut and ends fitted but the smaller one that goes to the condenser in the front of the car is generic in length and is cut to fit...three different hose ends are supplied...strait, 45degree and90 degree...here is the question....can any one take a measurement for me? I want to put the new hoses on the evaporator BEFORE I put that whole system back in the car..yes the entire interior is gutted down to the firewall! I need a measurement and need to know what is the correct fitting for the condenser...45 or 90 degree....I would greatly appreciate it if anyone with a 65 with air can measure that smaller diameter hose for me...from the firewall to the fitting ..or to the end of the fitting would be very helpful...I know there is more inside the firewall but that cant be gotten to easily...LOL....so from the firewall to the end of the fitting ...or to the hose end crimp on the fitting would be of great help..

thanks in advance
Tony

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Wish I could help but I went the easy way out and bought the kit from classic auto air.

I'll check with my local restorer - they are doing a 65 now

KM
 
Anybody know how much R134a to install on a 1965 Tbird? If I knew the onces of R12 that were in the original, I could calculate the R134a amount.
 
Take the R12 charge specification and multiply it by 0.9. Then, subtract 0.25 pounds to get the proper amount of R134a charge. So if it took 2 # of R12,.... 2 x 0.9 = 1.8. Then 1.8 - .25 = 1.55
If your system has a sight glass remember that you can't use it to judge the charge. A fully charged 134a system will still have bubbles.
 
OLD THREAD - but, my question not accepted in New Posts. Best aftermarket refrigerant that is compatible with R12? Original system that has not been serviced for a long time. Blows cool but, not true cold air. There are several products on the market with good results listed in product replies online. Do not want to switch to R134a products. This is a do it yourself process because does not require evacuation of full system. Just a recharge boost.
 
red65 said:
OLD THREAD - but, my question not accepted in New Posts. Best aftermarket refrigerant that is compatible with R12? Original system that has not been serviced for a long time. Blows cool but, not true cold air. There are several products on the market with good results listed in product replies online. Do not want to switch to R134a products. This is a do it yourself process because does not require evacuation of full system. Just a recharge boost.
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If your plan is to do a "top up" and if you believe it currently has R12 in it, just spring for a can of real r-12. I see them for around $30. The problem with what you are thinking of doing, finding something "like R-12" is that anything that is "like R-12" is nearly always a mix of different gases. For it to work properly the system needs to be charged ONLY with that product so that the proportion of the mix of gases remains the proper proportion. If you add one of those "like R-12" products to your system which has either real R-12 in it or some other "like R-12" product someone used years ago you may wind up a badly proportioned mix of gases that works poorly and has the wrong pressure profile. I recommend two options: If you strongly feel it has R-12 already get one or two cans of R-12 and top it up with the real R-12. OR Evac the system of whatever is in it and then use a well regarded "drop in", "like R-12" product. If you read the fine print on some of the drop in's they even say that if you lose part of the charge you can be sure which of the mix of gases leaked out and you should not even top them up with the same stuff but should evac and recharge from scratch. They also say to shake the bottle while charging to make sure the mix of gases stays mixed up. They want to avoid a situation where you end up needing only half of the last can and if you didn't shake it you only got the "gas on top" of what's in the can instead of the blend. The other thing to keep in mind with these old system of unknown prior servicing, is that the oil that was used with the original R-12 is not compatible with 134a and possibly not compatible with some "drop ins". When they were doing these conversions back when 134a was coming on the market they were adding some compatible oil to the systems so that some oil would be in it that the 134a could carry around the system. THe ideal for you is either the top up with R-12... or complete evac and flush things as best you can and put new compatible oil in it and a suitable "like R-12" or go to 134a.
 
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