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Custom A/C hardlines

TheApocalyptican on Fri July 23, 2010 6:30 PM User is offline

Year: 90
Make: Chevy
Model: Suburban
Engine Size: 5.7
Refrigerant Type: r12

I have a 1990 suburban that I am changing the the condenser over to a parallel flow type. It has a very small amount of r12 in it now that will have to be evac'd, and I am intending on converting it to 134 after the condenser is switched. The condenser is one I bought a while ago for another type of vehicle, but it is the perfect size that I need for my suburban. I am not positive if the fittings are #6 and #8 like the ackits.com ones, but I do know they are the exact same size the the two that are on the stock condenser, and as far as I can see, if they weren't #6 and #8 they would have to be a #8 and #10, which I am not sure if that is ever used. So basically it's got normal sizes.

What I need to know, is if someone knows somewhere local that I can get custom bent hard lines made that will basically make the lines on the pf cond. the same as the stock cond. to where they come out the back of the core support and into the engine bay.



Edit: has anyone worked with the Vintage Air U-Bend-Em lines? That is basically all I would need. Would you basically bend them just like brake lines?

Edited: Fri July 23, 2010 at 6:50 PM by TheApocalyptican

TheApocalyptican on Fri July 23, 2010 9:27 PM User is offline

Ok, So after I found out more about the U-Bend-Em lines....I'm going to use them to make lines from my condenser to my current a/c lines. I am going to take the Suburban into a shop near me to have any freon evac'd and also have the system flushed. From there I am going to convert the system to r134a. I will be ordering a gauge set from AMA and a vacuum pump from AMA. Also will get a new accumulator from AMA or local part store. Any reason to get an AMA one over the local part store ones?

Since the system is basically brand new except for the evap and condenser, do I really need to change out all the orings when I convert?
Also, I see two high side fittings that are used for conversion. A 7/16-20 (1/4") and a 3/8-24 (3/16").....which one is the correct one for my suburban?

Cussboy on Fri July 23, 2010 9:35 PM User is offline

Quote
Originally posted by: TheApocalyptican
Also will get a new accumulator from AMA or local part store. Any reason to get an AMA one over the local part store ones?

Support the store that supports this board. I've done business with them as well.

Quote
Originally posted by: TheApocalyptican
Since the system is basically brand new except for the evap and condenser, do I really need to change out all the orings when I convert?

Also, I see two high side fittings that are used for conversion. A 7/16-20 (1/4") and a 3/8-24 (3/16").....which one is the correct one for my suburban?

Personally I'd leave O-rings alone in fittings that I didn't need to disconnect.

My 1988 R-12 Subrban didn't need any adapter for its low side, needed the GM 3/16 adapter for its high side, to fit the R-12 gauge set. Of course the Ford type adapter is different (but I still use that one on my R-12 1988 Mazda truck).



Edited: Fri July 23, 2010 at 9:35 PM by Cussboy

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