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Can I accidentally vacuum oil out of system?

mitchedo on Sat June 14, 2008 12:25 AM User is offlineView users profile

Year: 1997
Make: Honda
Model: Odyssey
Engine Size: 2.2
Refrigerant Type: 134

I put the vacuum pump on the parents' Odyssey today. After about 2.5 hours, there is a puddle of oil under the vacuum pump. The oil level did not go down in the pump. I figured it was just the vacuum pump oil expanding as it got hot, but then I wondered if I could be sucking the oil out of the system?

We changed the compressor on a fully-functioning system. ...added a little more oil than I drained out of old compressor and buttoned it all back up. I had to leave for a couple of hours while the vacuum was running, so I closed the hood down lightly and hooked the gauges on the license plate bracket. Vacuum pump is on the driveway. The ports on the car are both in horizontal lines, and facing up.

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Doug
Home of the "Tunex Suburban Disaster"

Edited: Sat June 14, 2008 at 12:27 AM by mitchedo

TRB on Sat June 14, 2008 1:25 AM User is offlineView users profile

Normally you can't pull enough oil form a system to really notice. What size is the "puddle"?

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mhfd112 on Sat June 14, 2008 6:17 AM User is offline

Did the electricity go off while you were gone?

mitchedo on Sat June 14, 2008 8:45 AM User is offlineView users profile

It's hard to say how big the puddle is, but I'd guess 2-4 ounces. I have a 7 cfm vacuum pump. The power did not go off while I was gone.

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Doug
Home of the "Tunex Suburban Disaster"

mhfd112 on Sat June 14, 2008 5:08 PM User is offline

The problem I was thinking about was if the power goes off when the pump is running and the vacuum pump oil might get sucked into the ac system. Sound like you have something else going on.

mitchedo on Sun June 15, 2008 9:42 AM User is offlineView users profile

It seems that the drain at the bottom of the vacuum pump was leaking. The exhaust seems to be in the handle, so if it was sucking oil from the system, then it would've been dripping from the handle. I hope.

Anyway, the system is charged and blowing 42 degree air with the fan on high, so we're happy for now.

Kitty litter is soaking up the oil.

-------------------------
Doug
Home of the "Tunex Suburban Disaster"

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