I have a thread going on various components of the 2001 Safari AC components I am inspecting and overhauling but this is an issue specifically related to the compressor.
The compressor I have is a Four Seasons H6 replacement, model 57949. When I installed it, I did it from the front of the vehicle. Besides the mounting bolts, the 12 volts power connector for the clutch, and the high pressure switch on the back, the only other connection to the compressor is the mechanical assembly that mounts the tubes carrying refrigerant to and from the compressor.
The suction side inlet port, as it is called, is the low pressure intake from the accumulator/dryer. It's on the right as you view it from the front of the vehicle. The outlet port, or high side port, connects directly to the condenser via a hose/tubing conduit. Where the outlet meets the inlet port, they are connected mechanically by a rigid piece of metal that has a bolts hole in the middle by which the tubes are clamped to the inlet/outlet ports.
So, you have to attach both the inlet and outlet ports as a unit. Installing from the front of the van my sight lines were not good. However, both tubes seemed to go on OK and I just tightened the retaining bolt. There were no apparent leaks during more than a year of operation.
Today, as I took the inlet/outlet combo off from the doghouse end, I noticed the inlet port end was sitting higher than the outlet port by close to 1/8th inch. That immediately concerned me, thinking I had not installed it correctly in the first place. However, when I pulled the tubing/hose assembly right out, it became apparent that the inlet/outlet is offset.
Here's a photo of the entire compressor:
Here's a close up of the ports from the side:
And here is an overhead of the ports:
Note on the side-view close up of the ports that the well in the outlet port is significantly deeper than the well on the inlet (suction) port.
I have never seen engineering like this before and I am wondering if the re-manufactured compressor is different than the AC Delco H6 with respect to the inlet/outlet ports.
Anyone know?
Also, there doesn't seem to be any O-rings used in either port.
The compressor I have is a Four Seasons H6 replacement, model 57949. When I installed it, I did it from the front of the vehicle. Besides the mounting bolts, the 12 volts power connector for the clutch, and the high pressure switch on the back, the only other connection to the compressor is the mechanical assembly that mounts the tubes carrying refrigerant to and from the compressor.
The suction side inlet port, as it is called, is the low pressure intake from the accumulator/dryer. It's on the right as you view it from the front of the vehicle. The outlet port, or high side port, connects directly to the condenser via a hose/tubing conduit. Where the outlet meets the inlet port, they are connected mechanically by a rigid piece of metal that has a bolts hole in the middle by which the tubes are clamped to the inlet/outlet ports.
So, you have to attach both the inlet and outlet ports as a unit. Installing from the front of the van my sight lines were not good. However, both tubes seemed to go on OK and I just tightened the retaining bolt. There were no apparent leaks during more than a year of operation.
Today, as I took the inlet/outlet combo off from the doghouse end, I noticed the inlet port end was sitting higher than the outlet port by close to 1/8th inch. That immediately concerned me, thinking I had not installed it correctly in the first place. However, when I pulled the tubing/hose assembly right out, it became apparent that the inlet/outlet is offset.
Here's a photo of the entire compressor:
Here's a close up of the ports from the side:
And here is an overhead of the ports:
Note on the side-view close up of the ports that the well in the outlet port is significantly deeper than the well on the inlet (suction) port.
I have never seen engineering like this before and I am wondering if the re-manufactured compressor is different than the AC Delco H6 with respect to the inlet/outlet ports.
Anyone know?
Also, there doesn't seem to be any O-rings used in either port.