Need help with Motion Dynamice R134A conversion kit

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First, this kit was quite easy to install. Nothing interfered with anything else. I did have two issues; the included belt was too short and the upper support for the compressor needed the grinder just a tad. Other than that it was a complete bolt in. I've heard that there are some kits with aluminum mounts but this one had steel everything and it was all a good fit. I didn't have an issue with the hoses being too close to the turbo inlet either as some others have. but I don't have a VAM or any of that other good stuff. I just have a tube going to a filter.

Now for the *help* part. Everything *seemed* to bolt together like that's where it belonged but I need someone to work through this with me since I obviously did something wrong. From the accumulator there was a hose that went to the top of the compressor. Under the plug that came off of the compressor there was an "E". I am concerned that this means Evaporator though. But his setup mirrored the OEM compressor pretty well and this was the only place this hose could be screwed onto. This hose also had a low pressure port in it. The other port on the compressor has a high pressure port in it and went to the Condenser. It could only connect to one fitting. This leaves only the other two hoses which screwed together in the middle. One end went onto the only remaining port in the evaporator the other end mated perfectly with the condenser. In the fitting in the middle of these two hosed there was a blue plastic insert inside that didn't look like it was supposed to come out so I left it in. Should this have come out? Does this mirror what you guys with the MD kit have?

Unlike the OEM compressor, there was no plug in it but a single wire. The instructions say to attach the original hot wire in the harness to the "binary switch" and then to this wire. Which one is the original hot wire? The hot one going to the switch on top of the accumulator? Also, my accumulator switch (isn't this the "binary switch"?) didn't have the OEM plug going into it but a couple of spade connectors. Which one of these on the switch gets the hot wire on it?

Also what do I do with the original two wires that went to the compressor?

This new system has a "cycle switch" installed. The OEM system didn't have this so what is connected to it? Is this for the two wires that went originally went into the OEM compressor?

Thanks for your assistance

[8T6 SVO]

The hose that comes off the firewall goes to the short hose with the binary switch - this hose then goes to the lower condenser outlet. There should be no blue plastic insert IIRC, this is to make sure nothing gets into the hose during shipping. The old compressor connector is where the new connection is made to the new binary switch, you need to splice the new wires in.

Off the Accumulator - this hose goes straight to the upper port of the compressor.

The last hose goes from the lower compressor port to the upper condenser port.

HTH - let me know if you want some pictures.

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Pictures would be great! So the switch in the short hose is the binary switch? Where's the cycle switch then? I'm supposed to make adjustments by turning a screw in it.

[8T6 SVO]

Where's the cycle switch then? I'm supposed to make adjustments by turning a screw in it.

The cycle switch is in the accumulator. Don't touch this screw unless your system doesn't work very well or you know what your doing with the screw.
Picture #1

The wire off the new compressor goes to one side of the binary switch, the other side of the binary switch goes to the hot lead from the old compressor harness.
Picture #2

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The cycle switch is in the accumulator. Don't touch this screw unless your system doesn't work very well or you know what your doing with the screw.
Picture #1

No problem. The instructions said to adjust it until I get to a temperature of 36*. It did say it takes patience.

The wire off the new compressor goes to one side of the binary switch, the other side of the binary switch goes to the hot lead from the old compressor harness.
Picture #2

What do I do with the remaining wire from the old connector? There were two wires to the old compressor.

[8T6 SVO]

What do I do with the remaining wire from the old connector? There were two wires to the old compressor.

Nothing. You only need to splice into one of the wires. I just left the connector incase I ever wanted to plug back into a stock compressor.

[Pat_in_L.A.]

A Hose Wizard install story link that may help:

http://www.musclemustangfastfords.com/projectcars/mmfp_0308_hose_wizard_air_conditioning/index.html

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OK, I got everything hooked up right and pulled a vacuum on it for about 20 minutes. Unhooked the pump and waited to see if there was any leakage. None at all. So I started the car and used a jumper to the hot line to get the compressor to turn without anything in the system and get even more vacuum reading on the gauges. As soon as I started to fill the system (not even a half a can of r134a went in) the pressure on the low side jumped to over 90PSI! What the heck? Now I'm stumped. It seemed to be reading the pressure in the can, not the system. Not only that but it didn't seem to be rushing into the system very quickly like is should have. I even swapped to my other cheaper set of manifold gauges to see if there was an issue with the tools and not the AC and got the same result. And yes, I made sure all valves were wide open. I couldn't have pulled a vacuum if they weren't.


EDIT:
On the cycle switch, does it matter which spade connector gets the hot wire? All it does is make a connection to the compressor based on pressure, like an electronic jumper. Correct?

[8T6 SVO]

. As soon as I started to fill the system (not even a half a can of r134a went in) the pressure on the low side jumped to over 90PSI! What the heck? Now I'm stumped.

Did you pull the blue plastic plug out?

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Did you pull the blue plastic plug out?

As it turns out that's the removable orifice/filter. It's supposed to be there.

EDIT:
Here's a picture of it

http://www.musclemustangfastfords.com/projectcars/mmfp_0308_hose_wizard_air_conditioning/photo_06.html

[boostedbruiser]

just do what i did.......it WAY easier.............. just take the A/C out of the car.......it's the cool way to roll.............*much sarcasism*


I really wanted to go with Jims conversion but since plans have changed justa bit for the SVo, i figure, i'll just go with out

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just do what i did.......it WAY easier.............. just take the A/C out of the car.......it's the cool way to roll.............*much sarcasism*


I really wanted to go with Jims conversion but since plans have changed justa bit for the SVo, i figure, i'll just go with out

Maybe if I lived further north or even on the mainland. But I'm on an island in the Carribean and it stays *hot* most of the year.

[boostedbruiser]

Trust me DALLAS or houston isn't cool, and besides i'm in Colombia right now, talk about freaking HOT....... bad thing is HOUSTON is HOTTER than here........well hotter than some places here in the jungle

[8T6 SVO]

As it turns out that's the removable orifice/filter. It's supposed to be there.

EDIT:
Here's a picture of it
http://www.musclemustangfastfords.co.../photo_06.html

My bad.......but it does sound like something is plugged?!?

I had my buddies at Ford make sure that everything was connected properly and fill it with R-134. I really wasn't too expensive for them to fill it and make sure it was working properly - maybe $75.00? Maybe you should try the dealer route. Or call Glen at Hose Wizard and tell him the symptoms. He will talk to you and try to figure it out over the phone. MD will have his #.

I would hate my car as a driver without A/C. It plain gets too hot here in the Valley.

Keep working on it.

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I figured it out. I'm just a dumba$$ since I tried to put liquid freon into the low pressure gas side of the system. Not a good way to charge it. Not only will it not go in easily but will send the pressure too high and "slug" the compressor. I used a clamp type of can tap at the bottom of the can all the while thinking that the lid goes up so that I'm getting "gas" not liquid. Doh! I'm going to vacuum it down again and re-attempt tomorrow afternoon.