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Author Topic: 4.0 swap, hooking up the ac?  (Read 1133 times)

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Offline anrkii

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4.0 swap, hooking up the ac?
« on: November 12, 2012, 05:56:50 AM »
For all you 4.0 swappers out there, what did you do to plumb the newer style compressor to the system?
the compressor ports are very different

Offline eaglefreek

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Re: 4.0 swap, hooking up the ac?
« Reply #1 on: November 12, 2012, 09:34:47 AM »
For all you 4.0 swappers out there, what did you do to plumb the newer style compressor to the system?
the compressor ports are very different
I haven't done it, but you will probably have to get custom lines made at an AC shop. I have the A/C hooked up in my Eagle with the 5.3L. I had an A/C guy hook it up and he took the lines from the Eagle and lines from a junkyard Chevy truck and spliced them together.
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Offline mach1mustang351

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Re: 4.0 swap, hooking up the ac?
« Reply #2 on: November 12, 2012, 10:32:49 AM »
I ran my eagle compressor. I built brackets out of some angle iron that bolted to the AMC mount. Then I drilled appropriate holes for the compressor to mount. Then i made spacers to adjust fit and belt alignment. I know pics would help but I don't have any right this moment.
Fleet:

1987 AMC Wagon 4.0L, 3" Body lift, AX15, NP242
1981 AMC SX4 Sport
1969 Mustang (A Mach 1 with a 351)
1973 GMC K2500
2007 Suzuki Vstrom

Offline captspillane

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Re: 4.0 swap, hooking up the ac?
« Reply #3 on: November 12, 2012, 04:31:42 PM »
Not all 4.0 AC Pumps are the same. I know of at least three. My 1992 Jeep Cherokee has a different compressor that looks like it will accept the hose fittings from an old Eagle AC Pump. My 1996 4.0 might still work but its different. My 2000 Cherokee and 2006 Rubicon have an intergrated hose fitting that has a different spacing to the bolts and isn't interchangeable with the 1992 version.

Currently Inspected and Insured as of Jan 2013:
-1985 Eagle Station Wagon 258 T5 Stickshift
-1980 Eagle Station Wagon 258 Auto Fuel-injected with GM TBI

Minor Repairs Underway:
-1982 Eagle SX4 258 T5
-1981 Kammback 2.5L Iron Duke T5

Restoration Efforts Near Completion:
-1982 SX4- 401 NV3550
-1983 SX4- 4.5 MPI NSG370 (6 Speed)

Restoration Efforts Underway:
-1985 SW- 4.0 MPI AX15
-1982 SX4- 4.0 AW4
-1981 SX4- SD33T NV4500 (Turbodiesel 5 speed)

Future Rescue Efforts- '85 Maroon SW, '87 Limited SW, '84 Limited SW, '87 4 door Sedan, '81 2 door Sedan, '88 White SW, '77 4 door Hornet, '74 2 door Hornet, '79 Spirit AMX, '81 Kammback.

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Offline BenM

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Re: 4.0 swap, hooking up the ac?
« Reply #4 on: November 12, 2012, 06:59:36 PM »
Have you thought about transferring the Eagle alternator, brackets, and A/C compressor over as a unit? You may have to swap pulleys.

You also could take the opportunity to get new hoses anyway, as the new 134a leaks out of the old hoses slowly.
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1987 AMC Eagle Sedan -- 1976 Pacer Coupe -- 1968 Pontiac Tempest Custom S -- 1940 Mercury (& a 2002 Jetta Turbodiesel, 5 spd., the Wife's Daily Driver)

 

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