Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

reason for spuned bearings

Thread Tools
 
Search this Thread
 
Old Jul 3, 2007 | 08:05 PM
  #1  
Thule's Avatar
Thread Starter
TECH Fanatic
 
Joined: Jul 2006
Posts: 1,843
Likes: 0
From: reykjavík, iceland
Default reason for spuned bearings

couple of months after i bougth my 31k milage 98 m6 camaro last summer it spuned a bearing,

i have heard a lot of reasons for why the early F bodys do that so much, but im curius about what is the real reason? if there is such thing as "offical reason" i have heard that the oil pump just doesnt handle it, that the bearings are just bad, and many other things,

when my car spuned bearing, hit had realy good oil pressure, enough oil, and i was just cruising at 60miles i 6 gear when it started knocking.. and this is an umolested car i bougth from an old man, i knew about 3 other 99-2000 F bodys in my neigborhood with spuned bearing at the time,
Reply
Old Jul 3, 2007 | 10:40 PM
  #2  
FireSilverLullaby's Avatar
12 Second Club
iTrader: (5)
 
Joined: Aug 2005
Posts: 1,231
Likes: 0
From: Chesapeake,va and Charlotte,NC
Default

bump for ya, and are their any warning signs?
Reply
Old Jul 3, 2007 | 10:43 PM
  #3  
Thule's Avatar
Thread Starter
TECH Fanatic
 
Joined: Jul 2006
Posts: 1,843
Likes: 0
From: reykjavík, iceland
Default

in my case there where not, i just happen out of nowhere..

i dont want this to happen agen.. so i bougth realy good bearings.. bolts and ported ls6 oil pump,

but thats the funny part, my car had fine oil pressure,
Reply
Old Jul 3, 2007 | 11:21 PM
  #4  
Bo White's Avatar
TECH Addict
20 Year Member
iTrader: (59)
 
Joined: Oct 2004
Posts: 2,357
Likes: 0
From: Vance, Alabama
Default

The only thing that hold bearings in place is the crush on the bearing, not the tangs on them that slip into the keyway when you put bearings in. You either lost oil pressure or lost the crush on the bearing(like a bolt or rod failure)...or possibly the bearing just started comin apart.
Reply
Old Jul 4, 2007 | 12:30 AM
  #5  
Thule's Avatar
Thread Starter
TECH Fanatic
 
Joined: Jul 2006
Posts: 1,843
Likes: 0
From: reykjavík, iceland
Default

yeah i dont know what it was, when i teared down the motor.. the bearing was just.. gone, the oil pump works fine
Reply
Old Jul 4, 2007 | 08:15 PM
  #6  
FireSilverLullaby's Avatar
12 Second Club
iTrader: (5)
 
Joined: Aug 2005
Posts: 1,231
Likes: 0
From: Chesapeake,va and Charlotte,NC
Default

Yeah when my oil pressure goes down around 30 the gauge starts fluttering, I was just hoping that it wasnt anything serious

Last edited by FireSilverLullaby; Jul 4, 2007 at 10:12 PM.
Reply
Old Jul 5, 2007 | 09:14 AM
  #7  
GuitsBoy's Avatar
TECH Senior Member
iTrader: (4)
 
Joined: Apr 2003
Posts: 6,249
Likes: 3
From: Long Island, NY
Default

Sometimes after some higher rpm, the oil pump pressure relief valve sticks open, dumping your oil back into the pan. This is a big problem when you come back down to low rpm and dont flow as much oil to begin with. Other than that, theres water in the oil, fuel in teh oil, low oil, stretched rod bolts, etc.
Reply
Old Jul 5, 2007 | 09:24 AM
  #8  
brad8266's Avatar
TECH Senior Member
iTrader: (23)
 
Joined: Aug 2005
Posts: 8,797
Likes: 0
From: Watertown, NY
Default

I would say either stretched rod bolts, contaminated oil, or airating of the oil.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-1

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-2

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-3

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-4

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-5

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-6

10 Camaros You Should Never Buy

 
story-7

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
story-8

Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

 Brett Foote
story-9

10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

 Verdad Gallardo
Old Jul 5, 2007 | 09:35 AM
  #9  
BIG_MIKE2005's Avatar
12 Second Club
20 Year Member
iTrader: (116)
 
Joined: Jun 2005
Posts: 5,221
Likes: 1
From: Skiatook, OK
Default

Man thats sucks. My 99' has 101,000 miles on it & is quiet as ever. In fact it's about to recieve a nice H/C/I package in about 2 weeks.

My wifes cousin bought a 98' & it had less miles on it than mine. His motor went about a month after buying it. Pretty much same thing, was just cruising & it started knocking.
Reply




All times are GMT -5. The time now is 02:41 AM.

story-0
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-1
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-2
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-3
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-4
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-5
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-6
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-7
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE
story-8
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE
story-9
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Slideshow: The 7.0-liter LS7 was designed for absolute cutting-edge performance.

By Verdad Gallardo | 2026-01-07 18:36:00


VIEW MORE