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Topic: Fan noise?

in Forum: C3 General Discussion


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Fan noise? (1/4)
 3/19/12 12:35pm
Dragonswan
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Ridge Manor, FL - USA

Vette(s):
1979, Just purchased. Previous owned by two individuals. Garage kept entire life. 47K Miles


Joined: 1/1/2012
Posts: 7

Drove first farily long trip from Brooksville to Sarasota down I75 this weekend.  And hear odd noise, sounds like a an extra fan coming on and off.

 
Previous owner installed extra heavy fan clutch.  Is this what I'm hearing?
 
Thanks for the help.
 
Jon Dragonswan


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Re: Fan noise? (2/4)
 3/19/12 12:40pm
Jaws79Lifetime Member
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Sykesville, MD - USA

Vette(s):
1979 Corvette Coupe Corvette Light Blue Midnight Blue interior Mirrored Glass T-tops


Joined: 4/27/2008
Posts: 4238

Probably, Mine has the clutch/fan setup and you can hear it cutting in and out, as it's supposed to. Was your temps running OK?
 
Barry
 
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Re: Fan noise? (3/4)
 3/19/12 12:53pm
Adams' AppleLifetime Member
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Duncanville, TX - USA

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


Joined: 11/8/2003
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YA...prolly the fan clutch kickin in/out as you drive. It should pretty much freewheel most of the time while on the road, but, it the temp of the air coming across the radiator gets to a certain point, the clutch will kick in a little, or a lot, to keep the temp in the range the clutch is set up for. It can sound like your transmission is slipping, as the rpms go up/down. As long as your engine temp is staying where it should be, it's prolly ok.

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Joel Adams
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Re: Fan noise? (4/4)
 3/20/12 12:01pm
aceintheholeLifetime Member
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Manteca, CA - USA

Vette(s):
1978,two tone,Metalic Rootbeer & gold 1975 L48 4 speed


Joined: 11/20/2005
Posts: 3623

My '81 came with an electric backup fan to the primary clutch fan. Might be on '80-82 series only and maybe exclusive to A/C options, I'm not sure. Didn't even know it was there for several years.

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Jimmy B.
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