Search found 15 matches

by Davo in Australia
Sat Jan 22, 2022 3:48 am
Forum: Automotive Air Conditioning Forum
Topic: Tube & Fin Condenser on Roof?
Replies: 13
Views: 1746

Re: Tube & Fin Condenser on Roof?

Ha ha, imagine what he would've looked like if he'd had a flat tyre!
by Davo in Australia
Fri Jan 14, 2022 8:35 am
Forum: Automotive Air Conditioning Forum
Topic: Tube & Fin Condenser on Roof?
Replies: 13
Views: 1746

Re: Tube & Fin Condenser on Roof?

Yeah, I saw that! And plenty of people from up north are driving down to Perth or back up after the holidays, so a really bad time to be travelling. Those specs you list are sort of what I'm looking at . . . well, not so extreme, but I want to get this system so that it can handle an extreme day and...
by Davo in Australia
Thu Jan 13, 2022 8:17 am
Forum: Automotive Air Conditioning Forum
Topic: Tube & Fin Condenser on Roof?
Replies: 13
Views: 1746

Re: Tube & Fin Condenser on Roof?

No, not late at all and I appreciate any help. Sorry, no pressures as I don't have my notes handy, but they were normal for Hychill refrigerant. The aircon works perfectly below about 35c, and above that it seems like there's just too much heat for it to shift. I also did the spray-water-on-the-cond...
by Davo in Australia
Mon Jan 10, 2022 7:27 pm
Forum: Automotive Air Conditioning Forum
Topic: Tube & Fin Condenser on Roof?
Replies: 13
Views: 1746

Re: Tube & Fin Condenser on Roof?

Argh! Yes, KF head! Posting at the end of the day is never a good idea . . .

Good idea, but hopefully this big condenser on the roof will do the job.

And thanks again!
by Davo in Australia
Sun Jan 09, 2022 7:42 am
Forum: Automotive Air Conditioning Forum
Topic: Tube & Fin Condenser on Roof?
Replies: 13
Views: 1746

Re: Tube & Fin Condenser on Roof?

Sorry, I forgot to check here yesterday! Thanks for all the things you've pointed out, they are all things I wouldn't have thought of. My system is so basic that it wouldn't be too hard to have the compressor clutch engaged during start-up. I've got some Pag 46 coming over from Speedy Air Spares bec...
by Davo in Australia
Fri Jan 07, 2022 8:13 pm
Forum: Automotive Air Conditioning Forum
Topic: Tube & Fin Condenser on Roof?
Replies: 13
Views: 1746

Re: Tube & Fin Condenser on Roof?

G'day! Thanks for making some points I hadn't thought about. It's always good to get someone else's view of these things. #1 - If I could figure out how to post a photo I took it would help! It would show this condenser up on a full-length roof rack, where there's plenty of room underneath for a sco...
by Davo in Australia
Wed Jan 05, 2022 11:45 pm
Forum: Automotive Air Conditioning Forum
Topic: Tube & Fin Condenser on Roof?
Replies: 13
Views: 1746

Tube & Fin Condenser on Roof?

I've got an 80s Range Rover here in Australia, with a new aircon I built a few years ago. I taught myself everything and built my own hoses since I'm in the bush and trades here are generally hopeless. It's worked well, but always really lost effectiveness above 35C or so. Below that and it's great....
by Davo in Australia
Sat Aug 27, 2016 8:57 am
Forum: Automotive Air Conditioning Forum
Topic: Help Please! Vac Oil In New AC System
Replies: 14
Views: 16151

Re: Help Please! Vac Oil In New AC System

Well, Galaxy hose is neoprene on the inside, and after lots of experimentation today only naphtha will dissolve this vacuum pump oil. This surprised me since any other mineral oil I've dealt with will dissolve with water-based degreaser. So as neoprene and naphtha aren't recommended to play together...
by Davo in Australia
Sat Aug 27, 2016 2:36 am
Forum: Automotive Air Conditioning Forum
Topic: Help Please! Vac Oil In New AC System
Replies: 14
Views: 16151

Re: Help Please! Vac Oil In New AC System

Well, it looks like I'll be making new hoses instead. I can't shift this oil and the only thing that comes close, after a few tries, is acetone, which is no good for neoprene. I don't know what this vacuum pump oil is made of, but it's pretty unusual. I might keep experimenting but there's no point ...
by Davo in Australia
Fri Aug 26, 2016 1:59 am
Forum: Automotive Air Conditioning Forum
Topic: Help Please! Vac Oil In New AC System
Replies: 14
Views: 16151

Re: Help Please! Vac Oil In New AC System

Mine doesn't have a check valve, but it sounds like sometimes they don't work anyway. Then some have a thermal switch that might cut out while you're having lunch, and other things can happen. I won't walk away from the thing this time. Here are some interesting cases I found while searching: http:/...