Do I need to flush?
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Tuned
Joined: Aug 2010
Posts: 343
Likes: 7
From: Arizona
Do I need to flush?
I'm going to replace my compressor, accumulator, orifice tube, and hose because the compressor leaks oil from the shaft seal and the hose appears to have a slight leak too. My question is, if I take it apart and don't see much black junk on the old orifice tube, do I still need to flush? Do those solvent spray cans work well, or is it a job better left to the repair shop?
Fleet Mechanic
Joined: Feb 2006
Posts: 1,776
Likes: 5
From: Lorain County, Ohio
Ideally, yes, you should flush the system. It's the only way to know exactly how much oil is in the system.
However, if you drain the oil from the old compresor, add that much plus 3 ounces to the new one, you'll be pretty close. (drain any shipping oil from the new compressor first)
Those aerosol cans of flush work really well, but only for flushing out your wallet.
The citrus based "solvent" is nearly impossible to remove from the system without large amounts of actual AC solvent and compressed air.
However, if you drain the oil from the old compresor, add that much plus 3 ounces to the new one, you'll be pretty close. (drain any shipping oil from the new compressor first)
Those aerosol cans of flush work really well, but only for flushing out your wallet.
The citrus based "solvent" is nearly impossible to remove from the system without large amounts of actual AC solvent and compressed air.
Thread Starter
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Tuned
Joined: Aug 2010
Posts: 343
Likes: 7
From: Arizona
What sort of solvent is the "right" kind, and how much of it do I need to flush the condenser and one hose? Is it possible to pour it in, or can it only be done with an expensive flush gun?
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