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Gunk in compressor suction screen, orifice tube clean

padgett on Thu August 05, 2010 11:58 PM User is offline

Have a 23 year old GM dual air system. Felt pretty good when front orifice tube was clean and clear but when pulled compressor, the suction screen had quite a bit of black and magnetic gunk. Am curious how this could occur if the magnetic particles started out in the compressor. Any ideas ?

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Many Carpets

HECAT on Fri August 06, 2010 6:30 AM User is offline

Previous compressor replacement. The suction screen is not OE on a 23 year old unit.

Make and model would be nice, assume suburban or full size van, with tube condenser.

The liquid line splits before the OT, so junk can head to the rear system without contaminating the OT screen.

Would suggest a complete system flush and a fresh load of oil w/ compressor replacement.

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HECAT: www.hecatinc.com You support the Forum when you consider www.ackits.com for your a/c parts.

FLUSHING TECHNICAL PAPER vs2.pdf 

padgett on Fri August 06, 2010 9:01 AM User is offline

And just noticed something: Isn't the screen supposed to point at the compressor (O'ring furthest in). When I pulled this one (very difficult), the long screen was toward the evaporator and O'ring was nearest the coupling.

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Many Carpets

HECAT on Fri August 06, 2010 9:51 AM User is offline

The screen points away from the compressor and is pressed in (difficult to remove). You can go to the manufacturers web site for more info about the "Compressor Guard" suction filters (www.airsept.com)

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HECAT: www.hecatinc.com You support the Forum when you consider www.ackits.com for your a/c parts.

FLUSHING TECHNICAL PAPER vs2.pdf 

padgett on Fri August 06, 2010 10:01 AM User is offline

Now I am really confused. Not sure if this is permitted but the picture on (deleted) indicates that the outlet end with the O-ring should go in the tube going to the evaporator first and the screen end with the tabs should face the condenser. Since this end has the high side tap it seems reasonable.

Ignorance is curable.

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Many Carpets

Edited: Fri August 06, 2010 at 4:14 PM by Automotive Air Conditioning Information Moderator

HECAT on Fri August 06, 2010 4:17 PM User is offline

Information from this site is not allowed on that site, so the favor is returned.

I did look before removing the link, and that is the correct way that the orifice tube should be installed.

Sorry for any confusion, I though we were still discussing the suction screen.

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HECAT: www.hecatinc.com You support the Forum when you consider www.ackits.com for your a/c parts.

FLUSHING TECHNICAL PAPER vs2.pdf 

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