Shran
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V8 Engine Swap
Solid Axle Swap
Truck of Month
- Joined
- Mar 4, 2008
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- 8,700
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- 4,801
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- Location
- Rapid City SD
- Engine Type
- V8
- Engine Size
- 5.0
I needed to replace the AC condenser in my Explorer and while it was apart I also replaced the accumulator, both lines, the orifice tube and all the O rings. I reused the compressor and the evap core.
Last night I pulled a vacuum on it. I was able to vacuum down to about 10hg on the low side and something below 0 on the high side (my gauge just goes lower than 0 with no marks there.) Not good, I have a 7cfm vacuum pump and it'll pull 30hg on a car pretty quick. I shut the valves and left it overnight and it held.
This morning I went out and messed with it some more. I found a damaged seal on the yellow hose, the end that connects to the pump. Bingo... just about 30hg on the low side and touching the stop on high after about 30 minutes. So I closed the valves... and lost all vacuum in about a minute.
What gives? I didn't touch anything other than the seal on the center hose. I don't understand why suddenly it's not holding when it held last night... do my gauges just suck, they are cheapos? Additional vacuum making something leak?
Last night I pulled a vacuum on it. I was able to vacuum down to about 10hg on the low side and something below 0 on the high side (my gauge just goes lower than 0 with no marks there.) Not good, I have a 7cfm vacuum pump and it'll pull 30hg on a car pretty quick. I shut the valves and left it overnight and it held.
This morning I went out and messed with it some more. I found a damaged seal on the yellow hose, the end that connects to the pump. Bingo... just about 30hg on the low side and touching the stop on high after about 30 minutes. So I closed the valves... and lost all vacuum in about a minute.
What gives? I didn't touch anything other than the seal on the center hose. I don't understand why suddenly it's not holding when it held last night... do my gauges just suck, they are cheapos? Additional vacuum making something leak?