C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

noisy clutch fan

Thread Tools
 
Search this Thread
 
Old Aug 5, 2007 | 09:39 PM
  #1  
Lothlorien's Avatar
Lothlorien
Thread Starter
Intermediate
 
Joined: Aug 2007
Posts: 38
Likes: 0
From: Toronto Ontario
Default noisy clutch fan

Hi everyone! I am new to this site. I have just purchased a 74 convertible and find that when it reaches 200 degrees on the meter the clutch fan goes on and is extremely loud. Is that normal?
Reply
Old Aug 5, 2007 | 10:25 PM
  #2  
Durango_Boy's Avatar
Durango_Boy
Team Owner
 
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
Default

Originally Posted by Lothlorien
Hi everyone! I am new to this site. I have just purchased a 74 convertible and find that when it reaches 200 degrees on the meter the clutch fan goes on and is extremely loud. Is that normal?

They do get loud when they are pulling max air but I assume you know the difference between air moving and a BAD noise. Chances are it's done and needs to be replaced.
Reply
Old Aug 5, 2007 | 10:46 PM
  #3  
Lothlorien's Avatar
Lothlorien
Thread Starter
Intermediate
 
Joined: Aug 2007
Posts: 38
Likes: 0
From: Toronto Ontario
Default Hi there!

Do you kow around how much this would cost..the part that is?
Reply
Old Aug 5, 2007 | 10:48 PM
  #4  
Lothlorien's Avatar
Lothlorien
Thread Starter
Intermediate
 
Joined: Aug 2007
Posts: 38
Likes: 0
From: Toronto Ontario
Default bad noise vs air movement

Well ther is no clanging or banging it just sound like an airlane taking off. Is that normal then.
Reply
Old Aug 5, 2007 | 10:56 PM
  #5  
Durango_Boy's Avatar
Durango_Boy
Team Owner
 
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
Default

Originally Posted by Lothlorien
Do you kow around how much this would cost..the part that is?
Oreilly has them for your car starting at $39.99


Originally Posted by Lothlorien
Well ther is no clanging or banging it just sound like an airlane taking off. Is that normal then.
Yeah that's pretty much normal. You see they are thermal fan clutches. They don't lock up for maximum fan rotation until the element on the case of the fan clutch reaches a certain temp. Then it locks up you hear nothing but air moving.

I would suggest maybe trying to lower the overall temp a little. Check all your radiator core support seals. They make sure air goes through the radiator instead of around it. Also, when was the last time the cooling system was flushed a filled? It should be done every year.

Do those checks first, and if your temp still rides high and you hear that whoosh it may be completely normal.

Something else you can do to test it is start the motor. Wait for it to get to operating idle temp, and shut the motor off with the hood up. Watch that fan. If it turns more than two full times when the motor is off then it is in fact bad.
Reply
Old Aug 5, 2007 | 11:24 PM
  #6  
Lothlorien's Avatar
Lothlorien
Thread Starter
Intermediate
 
Joined: Aug 2007
Posts: 38
Likes: 0
From: Toronto Ontario
Default fan watching

Well, sorry , but I dont kow exactly whre that fan is, i just picked up the car today.

Also , I dont need a new interior but, i would like to make it near new again. The owner said I can buy the whole interior kit for them, including the door panels, carpet seats and trim...is that true?
Reply

Get notified of new replies

To noisy clutch fan





All times are GMT -4. The time now is 10:44 PM.

story-0
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-1
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-2
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-3
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-4
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-5
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-6
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-7
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-8
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-9
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE