G35 Sedan V36 2007- 08 Discussion about the 2nd Generation G35 Sedan 2007 - 08

For anyone else with ac compressor noise (video)

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Old Aug 8, 2012 | 09:33 PM
  #16  
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Will do! Gonna tackle it tomorrow morning.
 
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Old Aug 9, 2012 | 12:22 PM
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UPDATE: Well just as i suspected it to be. It's either a shim thats worn out or a shim that got disintegrated. Heres a video! You can see me pulling on the clutch plate outward and the space it creates between the two. I can't unscrew the center nut due to space. I gotta get myself a impact ratchet as i can't find a clutch holding tool around here.
Update 2: put everything together and pulled a little on that clutch plate out. turned on the car and bam, no noise at all. completely quiet with ac on and ac off. But then noise comes back after a while. Space clearance is suppse to be 0.012 - 0.024 inches. Use a feeler gauge to measure.
 

Last edited by muyrec; Aug 9, 2012 at 01:56 PM.
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Old Aug 11, 2012 | 06:17 PM
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So basically what ur saying is something that was in-between the compressor to keep it from touching the other spinning component (like a washer or a ball bearing?) Wore out?
 
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Old Aug 11, 2012 | 06:41 PM
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Yes.
 
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Old Aug 11, 2012 | 07:27 PM
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Well hell... what in the hell can we do about that? :/

Wish I knew an engineer or someone in Infiniti we can send this video to
 
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Old Aug 11, 2012 | 08:07 PM
  #21  
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simple fix really. find a really thin washer that can separate the two by 0.012 - 0.024 inches. problem fix.
 
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Old Aug 11, 2012 | 08:16 PM
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That will grind also...
 
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Old Aug 11, 2012 | 08:24 PM
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how so? the manual calls for it.

 
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Old Aug 11, 2012 | 08:32 PM
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Won't the washer wear out eventually? It's going to be in constant contact with a moving part
 
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Old Aug 11, 2012 | 08:46 PM
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until i can get that face plate off and examine what is going on in there im not 100% sure ifs only the shim. or an underlying situtation causing this problem.
 
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Old Jun 10, 2013 | 09:09 PM
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Did anyone find a solution to this problem? It looks like I am having the same issue. 52k on the clock...just out of warranty and the stealership is not helping. It looks like it could be an almost simple fix...

 
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Old Oct 13, 2013 | 10:36 AM
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Any follow ups to this thread? Did anyone find a shim/washer that fixed the sound permanently?
 
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Old Oct 13, 2013 | 11:29 AM
  #28  
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OP here. Heres a post i did to someone who asked me if i fixed the problem regarding this issue

Yea i fixed mines by just getting a washer i had laying around here. increased the spacing by a small amount. and i mean a very small amount. I was also having problems with the spacing thinking it was too much because it would disengage at high RPM's. Turned out there was rust build up where the plate face and compressor would meet. clean that up and and now it's working great. Theres 3 shims, a very thin (paper thin), a fatter one and a "fatso" shim. I managed to lose the paper thin as i was mixing and matching them up with the washer to get the perfect spacing. I want to make it clear that it fixed the scraping noise when it's off. But the other noise it makes when it's on (the whine) is still there. Taking off the bolt in the middle of the face plate was a pain. I had to buy an electric impact ratchet by ingersoll rand to take it off. ONE THING!, dont tighten the bolt with the ratchet as mines broke off the head which left the rest inside the thread. Lucky it wasnt tight. i was able to get it off with my index finger lmao. Bolt only needs 9-lb to tighten.Just get a normal ractchet to tighten I got this number from the 2004 maxima service manual. Infiniti doesnt give you the number in their manuals, bastards.
After all these months i'm getting a slight scrapping noise when off. But i've only heard it once or twice since then. Might have been temperature related. I have to find the papers which had the measurements of the shims. So i can say so far so good.
 
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Old Nov 3, 2013 | 06:28 PM
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my ac stop working so i took to a shop and compress was done. it locked up the clutch would even spin. I had to get that replace and it was cheap.
 
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Old Jan 13, 2015 | 10:24 AM
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i suspect the same thing happening to my car right now. I don't have the grinding sound but i definately have the whining noise. im gonna take the belt off tonight and see.

Is there a fix for this besides replacing the AC compressor?
 
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