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Topic: A/C belt chattering

in Forum: C3 Cooling and Heating Systems


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A/C belt chattering

Posted: 6/3/09 1:27pm Message 1 of 6
gs77vet
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Joined: 3/19/2005
Posts: 385

I hope this is posted???? I have a problem with my A/C belt chattering. I believe my old mechanic replaced the regular length belt with a shorter belt, two inches shorter I believe. Anyone know for sure, I lost my old mechanic due to illness due to illness  so I'm kinda lost. Thanks, Gene




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A/C belt chattering

Posted: 6/3/09 7:37pm Message 2 of 6
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Adams' Apple
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Duncanville, TX - USA
Joined: 11/8/2003
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Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
What exactly are you asking?

Is the belt loose, or just worn out, or is there something else going on?



Joel Adams
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A/C belt chattering

Posted: 6/4/09 8:58am Message 3 of 6
gs77vet
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New belts, for some reason I have always had this problem, and with belts in general. Gene


A/C belt chattering

Posted: 6/4/09 10:54am Message 4 of 6
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corvette440hp
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Just a thought.........your clutch could be kicking in and out due to the low pressure switch........


corvette440hp

A/C belt chattering

Posted: 6/4/09 3:30pm Message 5 of 6
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suncountry
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Moses Lake, WA - USA
Joined: 4/16/2005
Posts: 2134
Vette(s): 1976 L48 4-spd, Mahogany Metalic exterior, Buckskin interior 350ci/350hp, 3rd owner, fiberglass spring, 255/50-16's Torq-Thrust II
Or maybe the A/C system VIR valve was converted to an orifice with a separate receiver dryer. This system cycles the compressor on and off. I have heard it will make the belt chirp when the compressor kicks on.


A/C belt chattering

Posted: 6/4/09 4:34pm Message 6 of 6
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fp_vetter72
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COPPERAS COVE, TX - USA
Joined: 7/6/2002
Posts: 417
Vette(s): 1972 corvette stingray convertible 2007 coupe
I have found that new belts are a metric size, they just dont fit the pully's the way the old ones did and tend to make noise, if the belt get's glazed it will do this also. Take a wire brush and hold it on the underside of the belt with the engine running, cleans the glaze off. Be very carefull when doing this!!!!



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in Forum: C3 Cooling and Heating Systems


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