Search found 1170 matches

by bohica2xo
Fri Oct 06, 2023 4:48 pm
Forum: Automotive Air Conditioning Forum
Topic: AC HOSES
Replies: 20
Views: 12718

Re: AC HOSES

What was the donor car for the Condenser you are using?

We can look it up and tell you more about it
by bohica2xo
Fri Oct 06, 2023 2:05 pm
Forum: Automotive Air Conditioning Forum
Topic: AC HOSES
Replies: 20
Views: 12718

Re: AC HOSES

It is a GM compressor. There is wide range of manifold blocks that would offer a better hose routing than that OEM manifold you are trying to bend.

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by bohica2xo
Fri Oct 06, 2023 7:41 am
Forum: Automotive Air Conditioning Forum
Topic: AC HOSES
Replies: 20
Views: 12718

Re: AC HOSES

Your 1988 XJS should have a brass expansion valve mounted at the evaporator. Later cars have the block type expansion valve. This can lead to some confusion. If we start with the suction line to the compressor, it starts at the Evaporator. Usually a 5/8" ID or larger line, it goes straight to t...
by bohica2xo
Thu Oct 05, 2023 9:31 pm
Forum: Automotive Air Conditioning Forum
Topic: Where is a micron gauge placed when vacuuming system?
Replies: 11
Views: 8999

Re: Where is a micron gauge placed when vacuuming system?

I usually mount a gauge like that at the vacuum hose connection on the manifold. That way I can start by checking the hoses and manifold for leaks before I connect to the system. As well as checking the vacuum pump itself. Valves shut, manifold and valves are under test. Note the maximum vacuum your...
by bohica2xo
Thu Oct 05, 2023 10:37 am
Forum: Automotive Air Conditioning Forum
Topic: What is best way to seal up/get ready a system for later vacuum and charge?
Replies: 5
Views: 2611

Re: What is best way to seal up/get ready a system for later vacuum and charge?

Have to pressure check it anyway.

Pump it down and pressurize it with dry nitrogen to 150 psi. Check it in a few days. If it holds, you can drive it around like that (with the compressor unplugged) indefinitely.
by bohica2xo
Thu Sep 28, 2023 4:58 pm
Forum: Automotive Air Conditioning Forum
Topic: Compressor life
Replies: 6
Views: 2068

Re: Compressor life

With simple systems like yours, in the summer I leave the compressor on and control cabin temperature with fan speed. The frost protection device may cycle the clutch, or it may not. Because of the constant cloud of marijuana smoke in traffic here in Las Vegas I keep the recirculate mode on all of t...
by bohica2xo
Thu Sep 28, 2023 1:27 pm
Forum: Automotive Air Conditioning Forum
Topic: Compressor life
Replies: 6
Views: 2068

Re: Compressor life

Many of the carbon / ceramic seals in compressors over the years have been declared "bad" and replaced when they were just fine. The oil film on the seal IS the seal. Tecumseh and A6 seals needed to run to keep the oil film in place. Running your compressor once a month or week should be e...
by bohica2xo
Mon Sep 25, 2023 10:02 pm
Forum: Automotive Air Conditioning Forum
Topic: I need help with the correct amount of oil
Replies: 7
Views: 1759

Re: I need help with the correct amount of oil

Unless your components are significantly larger than the OEM parts, the factory spec should be fine.

If you had ADDED 2 meters of #10 hose, a little more oil might be recommended.

Anyplace between 5 and 5.7 ounces of oil will be fine.
by bohica2xo
Mon Sep 25, 2023 6:31 pm
Forum: Automotive Air Conditioning Forum
Topic: I need help with the correct amount of oil
Replies: 7
Views: 1759

Re: I need help with the correct amount of oil

So the mystery vehicle is just a 1990 Civic?

Yeah, put 5 ounces total in it and go with that.
by bohica2xo
Mon Sep 25, 2023 5:41 pm
Forum: Automotive Air Conditioning Forum
Topic: I need help with the correct amount of oil
Replies: 7
Views: 1759

Re: I need help with the correct amount of oil

Is that 2 meters of each hose size? If you took 4 ounces of oil out of the new knockoff 508, it still needs 5 ounces to start with. A 1990 Civic used 5 ounces for the entire tiny system. Some oil coats the inside surfaces of the system. So, knowing the size of the system helps with the oil estimate....