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Sealer Leak Detector

gerryleea0106 on Mon July 20, 2009 12:29 AM User is offlineView users profile

Year: 85
Make: Porsche
Model: 944
Engine Size: 2.0 LTR
Refrigerant Type: R-12
Ambient Temp: 90 F
Pressure Low: 0
Pressure High: 50
Country of Origin: United States

Well, I afraid I have done the wrong thing. Last summer I evacuated the AC system on my '85 Porsche 944 and then added sealer. The AC system was discharged when we got the car so I figured it had a slow leak. I checked the system with my gauges. ZERO. So I recovered the system and pulled a vacuum for about 12 hours (overnight). I let it sit for 24 hour to see if the system would loose vacuum over time. The vacuum held. So I added a can of R-12 sealer I purchased off of E-Bay and charged the system. It was working fine until I let the car sit over the winter. Now, next spring, it is DOA. I can see some refrigerant in the sight glass but no cooling. I tried adding (top off) but it won't draw any in.

Funny thing is I also noticed some residue around the connection on my 87 Ford Pickup so I added some sealer to it as well. It too has the same problem. Compressor cycles on and off every few seconds. Low side climbs to about 35 PSI and the compressor cycles off but the line where the FOT is located is not even cool. Like a dummy, I should know better, because I'm and ASE Master Tech. I should have known that sealers plug holes and FOTs are small holes. Just like radiator sealer will plug your heater core. Reading some of the earlier posts scares me into thinking I've really plugged up the whole system. I'm afraid I'll have to tear down the whole system to clean it out.

Gerald L. Armstrong

Edited: Mon July 20, 2009 at 12:51 AM by gerryleea0106

TRB on Mon July 20, 2009 12:38 AM User is offlineView users profile

This is what we use in our shop.



When considering your next auto A/C purchase, please consider the site that supports you:

Edited: Mon July 20, 2009 at 8:45 AM by TRB

Dougflas on Mon July 20, 2009 5:19 AM User is offline

The link for the sealer detector doesn't work.

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