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

HELP!

Thread Tools
 
Search this Thread
 
Old Jul 6, 2002 | 07:09 PM
  #1  
GusBustamanteJr's Avatar
GusBustamanteJr
Thread Starter
Drifting
10 Year Member
 
Joined: Jul 2001
Posts: 1,751
Likes: 1
From: Miami, FL, USA
Default HELP!

Installed the AIR pump eliminator last night, was running fine. Today I hear a flapping sound. Seems like the belt is riding high on the eliminator pulley and flapping back down. On startup and ile its fine, once it gets revved up, it starts doing this thing, and never lines back up unles I turn it off. Everything looks lined up, there is no shimmy or wobble- what can it be? Belt tensioner looks like it grabbed all the slack, but I can almost pull the belt off a pully if I try. Any help??? Ideas???

Scorp?
Reply
Old Jul 6, 2002 | 07:13 PM
  #2  
bogus's Avatar
bogus
Team Owner
25 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Default Re: HELP! (GusBustamanteJr)

if you can pull the tension on the idler pully, then the tensioner is DOA...

make sure that everything is nice and tight, too...
Reply
Old Jul 6, 2002 | 09:02 PM
  #3  
GusBustamanteJr's Avatar
GusBustamanteJr
Thread Starter
Drifting
10 Year Member
 
Joined: Jul 2001
Posts: 1,751
Likes: 1
From: Miami, FL, USA
Default Re: HELP! (bogus)

Everything is tight- the tensioner is brand new- worked fine last night with the AIR pump on.
Reply
Old Jul 6, 2002 | 09:07 PM
  #4  
scorp508's Avatar
scorp508
Team Owner
Supporting Lifetime Gold
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2000
Posts: 83,381
Likes: 87
From: Boston, MA
Default

I would put the AIR pump on and see if the problem goes away. I had a hell of a time with mine. After installing it I kept breaking alternators. For some reason now though it is lined up perfect and very happily doing it's job.

Did you put any washers between the plastic tubes and the cylinder head? I think that was my mistake. I don't know what I was thinking but I put one on each bolt there. When put it on again I didn't do that and it lines up great.
Reply
Old Jul 6, 2002 | 09:29 PM
  #5  
GusBustamanteJr's Avatar
GusBustamanteJr
Thread Starter
Drifting
10 Year Member
 
Joined: Jul 2001
Posts: 1,751
Likes: 1
From: Miami, FL, USA
Default Re: (scorp508)

No- I didnt put any- but i think i know what it is.......the belt seems a bit loose, I can pull on it and draw tension on the tensioner, but its new.....I do have underdrive pulleys (3 piece) and this new pulley is much smaller than the old one on the factory pump, could be not enough tension? Maybe I need to go shorter on the belt b/c I cant get more tension on the tensioner. What do you guys think?????
Reply
Old Jul 6, 2002 | 09:31 PM
  #6  
scorp508's Avatar
scorp508
Team Owner
Supporting Lifetime Gold
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2000
Posts: 83,381
Likes: 87
From: Boston, MA
Default

If you have underdrive pulleys, you cannot use the stock belt. You need a shorter one.

p.s.

Look and see what you are getting for voltage on the voltometer. I'm wondering if the alternator is slipping and spinning fast enough also if the belt is that loose.


[Modified by scorp508, 8:31 PM 7/6/2002]
Reply
Old Jul 6, 2002 | 09:38 PM
  #7  
GusBustamanteJr's Avatar
GusBustamanteJr
Thread Starter
Drifting
10 Year Member
 
Joined: Jul 2001
Posts: 1,751
Likes: 1
From: Miami, FL, USA
Default Re: (scorp508)

yeah I know- i already have a 90.5 in there, but I noticed the new dead pulley is smaller than the old pulley on the AIR pump- can I re-adjust the tensioner to provide more tension??? right now its lays almost perfectly perpendicular to the horizontal frame member in front of it, cant I loosen the nut, and raise it higher then, tighten up the nut to provide a bit more tension?

Is it typical for belts to ride up on a pulley when they are loose?

Thanks
Reply
Old Jul 6, 2002 | 09:40 PM
  #8  
GusBustamanteJr's Avatar
GusBustamanteJr
Thread Starter
Drifting
10 Year Member
 
Joined: Jul 2001
Posts: 1,751
Likes: 1
From: Miami, FL, USA
Default Re: (GusBustamanteJr)

PS- the underdrive pulleys where in there for months before this.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

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

 Michael S. Palmer
story-1

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

 Joe Kucinski
story-2

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

 Michael S. Palmer
story-3

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

 Joe Kucinski
story-4

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-5

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

 Joe Kucinski
story-6

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

 Joe Kucinski
story-7

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

 Joe Kucinski
story-8

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

 Brett Foote
story-9

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

 Joe Kucinski
Old Jul 7, 2002 | 12:12 AM
  #9  
GusBustamanteJr's Avatar
GusBustamanteJr
Thread Starter
Drifting
10 Year Member
 
Joined: Jul 2001
Posts: 1,751
Likes: 1
From: Miami, FL, USA
Default Re: (GusBustamanteJr)

One of those things?? I just loosened it all up, jiggled it a bit, tightened it back up, and its been fine all night. We'll see how it goes.

Thanks guys
Reply

Get notified of new replies

To HELP!





All times are GMT -4. The time now is 04:39 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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