Ford C350 Dual Air - trouble

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slawson2000
Posts: 21
Joined: Wed Feb 27, 2019 7:30 am

Re: Ford C350 Dual Air - trouble

Postby slawson2000 » Mon Apr 08, 2019 7:43 am

I could not wait any longer.

For the oil, here is my math.
7oz stock system + 4oz for rear system = total system 11oz.
Deduct ~2oz for oil in evaporator = 9oz need to add to system.
Deduct oil compressor came with 6oz (6.1oz) = 3oz to add.
Poured about 3.25 oz into a measuring device and poured it in figuring some would stick the device (cup).

Put in on a vacuum. pulled about 24inHG on my gauges. Held the vacuum too.

Pressure, I am guessing. Stock is 2lb, 1oz, I added 36oz and the compressor would stay on. Pressures were still low. I added about another 8oz to 10oz.
88 degrees out, 200 / 40psi. It is blowing cold. Does this sound about right?

How can I dial this in?
Dougflas
Posts: 226
Joined: Mon Apr 18, 2016 6:10 pm

Re: Ford C350 Dual Air - trouble

Postby Dougflas » Tue Apr 09, 2019 3:37 am

24 on vacuum is not enough depending upon where you are located. what is your elevation? Better recheck your equipment.
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Cusser
Posts: 412
Joined: Sun Apr 24, 2016 6:29 am

Re: Ford C350 Dual Air - trouble

Postby Cusser » Tue Apr 09, 2019 6:23 am

Dougflas wrote:24 on vacuum is not enough depending upon where you are located. what is your elevation? Better recheck your equipment.


Agree; test the gauge with the valves to the vehicle blocked or shut off, and pull a vacuum then.
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Tim
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Location: Scottsdale, Arizona
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Re: Ford C350 Dual Air - trouble

Postby Tim » Tue Apr 09, 2019 3:01 pm

FS-10 locked up and rear system. I know it's not easy. As when I spent 30 plus minutes on the phone with you. It's a rare case you can simply switch out some parts. Play with oil amounts and have a successful repair. I wish you the best and hope all your work is not wasted as debris is sucked back into the new components.

Good luck.
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