Here is what the orifice tube looked like before I did the work (see the tiny pieces of aluminum?):
![Image](http://i1214.photobucket.com/albums/cc498/tigers2007/9CFDBBCE-AB0D-48F3-9182-73D466B6CF75.jpg)
Moderators: bohica2xo, Tim, JohnHere
Is this compressor driven by a conventional belt or a serpentine belt? Because it might just be a slightly-loose belt; can you tighten the belt a little and try? I have a Nissan 1998 truck that has all sorts of squeals at times on start up and with AC start up, but I don't want to overtighten the compressor belt and wear out the compressor "prematurely". I say "prematurely because that's got 211K on it !!!Chipdumper wrote:The problem is that when the A/C compressor is activated for the first time, it makes this ridiculous "stall" noise when the clutch assembly activates. Then it seems to work just fine for subsequent activation's of the compressor. Is this indicative of a bad compressor or is this more likely than not just an issue with the clutch? Should I try to turn the compressor over by hand to see if the pump is locking up when it sits idle?
If you re-use the AC clutch, I'd replace its bearing if I could. On the Sanden compressor in my Mazda truck, that bearing is readily available, and removeable.Chipdumper wrote:The question is now, do I yank off the 12-year old clutch assembly and re-install or do I buy lets say a new Motorcraft clutch pulley/bearing assembly and reuse the existing coil, etc.?