Search found 16 matches

by swampy 6x6
Fri May 06, 2022 7:45 pm
Forum: Automotive Air Conditioning Procedures, Tips and FAQ.
Topic: Best way to flush tube/fin condenser at home?
Replies: 6
Views: 589

Re: Best way to flush tube/fin condenser at home?

hi If your going to use compressed air , use whats called an air drying desiccant snake commonly used by spray painters to treat there air supply . Made by Devilbiss . Google it . Use Shell X55 white spirit solvent . Very mild degreaser and cleaner . Will completely evaporate. The dispensing tool wo...
by swampy 6x6
Fri May 06, 2022 7:30 pm
Forum: Automotive Air Conditioning Forum
Topic: Car ac not cooling when weather is hot.
Replies: 56
Views: 4802

Re: Car ac not cooling when weather is hot.

hi
The procedures on how to charge and Charging limitations guide has been mentioned
by swampy 6x6
Tue May 03, 2022 6:47 am
Forum: Automotive Air Conditioning Forum
Topic: Two Condensers connected in series
Replies: 21
Views: 22170

Re: Two Condensers connected in series

hi Done many 2nd condenser in series connection . Design of first factory condenser can be bigger or but usually smaller than the aftermarket second unit thats installed . Combinations of tube/fin and serpentine and parallel flow take your pick they all work in series . Common pressures on high side...
by swampy 6x6
Sat Apr 30, 2022 2:51 am
Forum: Automotive Air Conditioning Forum
Topic: Car ac not cooling when weather is hot.
Replies: 56
Views: 4802

Re: Car ac not cooling when weather is hot.

hi 1st vacuum pump change oil test pump and check to see if it can reach 29 inHg 2nd check gauges are not leaking internally --replace sealing washers and tap o rings ---install new manifold seals ---install new hose rubbers Vacuum system for 45 mins to 1 hr Vacuum leak test 15mins Charge with gas/l...
by swampy 6x6
Thu Apr 21, 2022 10:06 pm
Forum: Automotive Air Conditioning Forum
Topic: A/con idle up or idle cutout switch
Replies: 14
Views: 670

Re: A/con idle up or idle cutout switch

hi Little content about the idle cut out or idle up in a few of the previous posts . Although the conversation on pulley ratios is interesting and an associated subject sure but still unrelated . RE modern car cut out , these are typically ECU controlled not what the topic is about . Once again any ...
by swampy 6x6
Thu Apr 21, 2022 1:35 pm
Forum: Automotive Air Conditioning Forum
Topic: A/con idle up or idle cutout switch
Replies: 14
Views: 670

Re: A/con idle up or idle cutout switch

hi
Cutout = compressor cut out , at idle in this case. Might try a carburettor linkage micro switch at idle to turn off compressor .

Delco solenoid not a good solution
Crank pulleys 5.5 inch 6.25 inch or 7 inch stock / 5.5 drag only / trying 6.25
by swampy 6x6
Thu Apr 21, 2022 3:50 am
Forum: Automotive Air Conditioning Forum
Topic: A/con idle up or idle cutout switch
Replies: 14
Views: 670

A/con idle up or idle cutout switch

hi Looking for a setup I am building at the moment SBchevy with carby and a street style cam . Anyways the prediction is the engine wont like the a/con compressor load without an idle up or a cutout . If I remember correctly back in the 80`s,,90`s there were Sanden idle cut outs . Carb is a Holley /...
by swampy 6x6
Mon Oct 11, 2021 6:40 pm
Forum: Automotive Air Conditioning Forum
Topic: Cooling The Old Condenser
Replies: 39
Views: 10818

Re: Cooling The Old Condenser

hi Always Always fit the largest condenser possible. Some aftermarket units are a little small with car model specific brackets . Some of these kits use a the next smallest condenser sizing !! Always use at least the factory condenser size L x W as a guide and go bigger if possible . There is some t...
by swampy 6x6
Mon Oct 11, 2021 6:17 pm
Forum: Automotive Air Conditioning Forum
Topic: gauges bleed out vacuum
Replies: 2
Views: 1112

Re: gauges bleed out vacuum

hi
In a perfect world every one would vacuum system for 1 hour and vacuum hold test for 30mins with a micron gauge .
Yes u need to check gauges as these can leak by not completely turning ""off"" eg valve seating . Another issue canbe hose sealing etc at connections .
by swampy 6x6
Mon Oct 11, 2021 6:01 pm
Forum: Automotive Air Conditioning Forum
Topic: What happens when capacity of system is exceeded?
Replies: 54
Views: 14894

Re: What happens when capacity of system is exceeded?

hi If u can get your aircon to work better when garden hose water is applied to condenser you have a condensing problem = not big enough ***Remember industrial R12/R134a systems DONOT run the high automotive pressures ****Automotive pressures on R12 in the sixties and seventies ran lower than 180-20...