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: 13,924
Likes: 700
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

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

 Michael S. Palmer
story-1

2027 Corvette vs The World: Every Model vs Closest Competitor

 Joe Kucinski
story-2

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-3

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-4

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
story-5

10 Things C8 Corvette Owners Hate (But Won't Tell You)

 Joe Kucinski
story-6

10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

 Brett Foote
story-7

Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

 Joe Kucinski
story-8

Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

 Michael S. Palmer
story-9

5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

 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 05:57 PM.

story-0
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-1
2027 Corvette vs The World: Every Model vs Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-20 17:58:41


VIEW MORE
story-2
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
story-3
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-4
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-5
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-6
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-7
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE
story-8
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

Slideshow: Breaking down the 2027 Grand Sport, Grand Sport X, Stingray, and LS6 V8.

By Michael S. Palmer | 2026-03-26 13:48:45


VIEW MORE
story-9
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

Slideshow: 5 reasons bad drivers crash sports cars & 5 ways to avoid a costly shame!

By Joe Kucinski | 2026-03-25 16:32:55


VIEW MORE