C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

AIR pump problem...

Thread Tools
 
Search this Thread
 
Old Oct 8, 2005 | 04:39 PM
  #1  
kopbet89c4's Avatar
kopbet89c4
Thread Starter
Safety Car
 
Joined: Dec 2004
Posts: 4,088
Likes: 0
From: Poop land
Default AIR pump problem...

Last night, I replaced my alternator because of the battery light. Now it seems like my AIR pump is next to go. I know it is my AIR pump because of the sound it makes. Sounds like a whining noise with a little chucking. Doesn't ever seem to go away now. Took of the serpentine belt again and spun the AIR pump pulley. Seems like it is harder to turn than normal and yes it does make a chunking sound when it is spun. What should I do now??? Is it possible to "gut" the air pump and make it stop chucking and whining??? Do I have to take the pump off??? Can I make it a frictionless idler instead of slapping on an AIR pump delete kit??? Any help is appreciated!!
Reply
Old Oct 8, 2005 | 09:36 PM
  #2  
mikey whipreck's Avatar
mikey whipreck
Melting Slicks
15 Year Member
 
Joined: Jun 2004
Posts: 3,032
Likes: 4
Default

I opened the pump on my '85, gutted it, regreased the one bearing, and reinstalled. Spins easily and quietly, and now serves the same function as an air pump eliminator.

Mine is an '85
Reply
Old Oct 8, 2005 | 10:12 PM
  #3  
Aggravated4life's Avatar
Aggravated4life
Race Director
10 Year Member
 
Joined: Aug 2000
Posts: 14,130
Likes: 7
Cruise-In II Veteran
Default

The reason the air pump is harder to turn by hand is normal and its because there are the fiberboard like blades in there that sort of "scrape" inside when the spin,moving in and out.The engine spins it much faster than you can so you may feel more resistance when turning it by hand.

They can be knocked out with a screw driver and a hammer.However,theres alot of debris so have a shop vacuum handy to siphon it out.If you get the blades all the way out,and it still makes noise,theres a good bet the bearings are bad.In fact,I knew someone who had a bad air pump.He bought a reman one from advance and gave his old core to them.The he gutted the new air pump out and made it a freewheeling unit.Worked great to say the least.

Reply
Old Oct 9, 2005 | 03:48 AM
  #4  
kopbet89c4's Avatar
kopbet89c4
Thread Starter
Safety Car
 
Joined: Dec 2004
Posts: 4,088
Likes: 0
From: Poop land
Default

Are there any air pump elim kits that you can use you stock size belt with? I'm interested...
Reply
Old Oct 9, 2005 | 08:29 AM
  #5  
atotalnincompoop's Avatar
atotalnincompoop
Race Director
10 Year Member
 
Joined: Mar 2002
Posts: 12,968
Likes: 0
Default

i used a air conditioner pump delete pulley off of an early 90's chevy truck, it was cheap($25ish) and available from the dealership
Reply
Old Oct 11, 2005 | 10:28 AM
  #6  
Aardwolf's Avatar
Aardwolf
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2004
Posts: 13,943
Likes: 705
From: WI
Default

Just about all of the elim kits use your normal belt. I installed the EM kit and like it.
Reply
Old Oct 11, 2005 | 02:19 PM
  #7  
l1sikes's Avatar
l1sikes
Racer
10 Year Member
 
Joined: Jun 2005
Posts: 284
Likes: 2
From: Burton Texas
Default

I have a used eliminator for sale. It has less than 1,00 miles on it, I kept it when I sold the car. It uses the stock belt.

The eliminator is the one made in Canada by one of this forum's members (I forget the name). I will sell it for $125 plus shipping. My zip is 77835.
Reply
Old Oct 11, 2005 | 02:42 PM
  #8  
kopbet89c4's Avatar
kopbet89c4
Thread Starter
Safety Car
 
Joined: Dec 2004
Posts: 4,088
Likes: 0
From: Poop land
Default

Originally Posted by l1sikes
I have a used eliminator for sale. It has less than 1,00 miles on it, I kept it when I sold the car. It uses the stock belt.

The eliminator is the one made in Canada by one of this forum's members (I forget the name). I will sell it for $125 plus shipping. My zip is 77835.
Did you have any pics of this? I am interested.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-1

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-2

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-3

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-4

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-5

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-6

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-7

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-8

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-9

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
Old Oct 11, 2005 | 03:56 PM
  #9  
l1sikes's Avatar
l1sikes
Racer
10 Year Member
 
Joined: Jun 2005
Posts: 284
Likes: 2
From: Burton Texas
Default

Originally Posted by kopbet89c4
Did you have any pics of this? I am interested.
Picture is on the manufacturer's CF home page, korvette4u.
Reply

Get notified of new replies

To AIR pump problem...





All times are GMT -4. The time now is 06:27 AM.

story-0
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-1
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE