LT1-LT4 Modifications 1993-97 Gen II Small Block V8

strange noise all of sudden

Thread Tools
 
Search this Thread
 
Old Oct 6, 2014 | 07:21 PM
  #1  
slownova73's Avatar
Thread Starter
TECH Enthusiast
iTrader: (31)
 
Joined: Jun 2008
Posts: 598
Likes: 0
From: Asheboro NC
Exclamation strange noise all of sudden

Drove it to the store 10 minutes prior to discovering this noise
got back from the store, washed the car, started it back up and now this! loud hollow sounding metal on metal noise, any ideas? new motor, about 4k miles.

Reply
Old Oct 6, 2014 | 09:49 PM
  #2  
94LTZ's Avatar
TECH Resident
iTrader: (5)
 
Joined: Jun 2009
Posts: 750
Likes: 1
Default

Rocker arm?
Reply
Old Oct 6, 2014 | 10:01 PM
  #3  
SS RRR's Avatar
Village Troll
20 Year Member
Liked
Loved
Community Favorite
iTrader: (2)
 
Joined: Oct 2002
Posts: 11,111
Likes: 598
From: Jackstandican
Default

Deep noises like that are never good. Wouldn't start it again and would start taking things apart.
Reply
Old Oct 6, 2014 | 11:55 PM
  #4  
cardo0's Avatar
Banned
 
Joined: Jan 2013
Posts: 588
Likes: 0
From: Las Vegas
Default

Its telling u it doesnt want anything to do with an LSX motor swap. Its crying for a BB chevy, something like a 496" stroker. Just bolts into a Nova with parts right off the shelf.

Wish i could put a BB in my 4th gen camaro.
Reply
Old Oct 7, 2014 | 03:00 AM
  #5  
SS RRR's Avatar
Village Troll
20 Year Member
Liked
Loved
Community Favorite
iTrader: (2)
 
Joined: Oct 2002
Posts: 11,111
Likes: 598
From: Jackstandican
Default

Originally Posted by cardo0
Wish i could put a BB in my 4th gen camaro.
For about the same amount of money it would take to do something retarded like that you could have similar power out of an emissions legal setup out of your stock block.
Reply
Old Oct 7, 2014 | 04:24 AM
  #6  
cardo0's Avatar
Banned
 
Joined: Jan 2013
Posts: 588
Likes: 0
From: Las Vegas
Default

Now matter what i want or what i do i sure as heck wouldnt ask u.

See a doctor about those deep noises your hearing.
Reply
Old Oct 7, 2014 | 08:36 AM
  #7  
shbox's Avatar
TECH Veteran
15 Year Member
Liked
 
Joined: Dec 2008
Posts: 4,147
Likes: 62
From: Little Rock, AR
Default

Rod knock or something very loose near the flywheel.
Reply
Old Oct 7, 2014 | 10:51 AM
  #8  
slownova73's Avatar
Thread Starter
TECH Enthusiast
iTrader: (31)
 
Joined: Jun 2008
Posts: 598
Likes: 0
From: Asheboro NC
Default

OK guys, well were gonna check it out today, hopefully its nothing major (I know it is) just kinda down since its a new motor and all.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-4

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-5

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

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

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

 Verdad Gallardo
Old Oct 7, 2014 | 11:46 AM
  #9  
slownova73's Avatar
Thread Starter
TECH Enthusiast
iTrader: (31)
 
Joined: Jun 2008
Posts: 598
Likes: 0
From: Asheboro NC
Default

And just curious on your opinions, if this were any of you, and you just exhausted most of your funds getting this 355 going, and this happens, how would you go about the situation? What's your gameplan? Its my brothers car, not my nova, and I'm just sick and tired of dealing with this ******* car and its constant letdowns. W.W.ls1tech.D.
Reply
Old Oct 7, 2014 | 03:35 PM
  #10  
leadfoot4's Avatar
TECH Veteran
20 Year Member
iTrader: (1)
 
Joined: Sep 2005
Posts: 4,621
Likes: 11
From: Webster, NY
Default

Originally Posted by slownova73
And just curious on your opinions, if this were any of you, and you just exhausted most of your funds getting this 355 going, and this happens, how would you go about the situation? What's your gameplan? Its my brothers car, not my nova, and I'm just sick and tired of dealing with this ******* car and its constant letdowns. W.W.ls1tech.D.
I'd pull the rocker covers first, and look for anything loose. By any chance did you use the OE rockers? Maybe one of them spit the needle bearings out. If so, the Comp Cams trunnion kit will get you going.

If all is OK under the rockers, I'd look in the flywheel area. Pull whatever access covers are down there, and if nothing looks amiss, try to get a friend who can turn the engine over with a ratchet and socket on the crank bolt, while you look for loose s**t.....
Reply
Old Oct 7, 2014 | 04:49 PM
  #11  
slownova73's Avatar
Thread Starter
TECH Enthusiast
iTrader: (31)
 
Joined: Jun 2008
Posts: 598
Likes: 0
From: Asheboro NC
Default

Originally Posted by leadfoot4
I'd pull the rocker covers first, and look for anything loose. By any chance did you use the OE rockers? Maybe one of them spit the needle bearings out. If so, the Comp Cams trunnion kit will get you going.

If all is OK under the rockers, I'd look in the flywheel area. Pull whatever access covers are down there, and if nothing looks amiss, try to get a friend who can turn the engine over with a ratchet and socket on the crank bolt, while you look for loose s**t.....
Crane 1.6's, and that's what were going to do, tomorrow, its about to rain down here.
Reply
Old Oct 7, 2014 | 10:57 PM
  #12  
SS RRR's Avatar
Village Troll
20 Year Member
Liked
Loved
Community Favorite
iTrader: (2)
 
Joined: Oct 2002
Posts: 11,111
Likes: 598
From: Jackstandican
Default

With as deep as it is, I really don't think it's valvetrain related. It's also very fast which points to bottom end rotating assy. Only option is to either do like shoebox said and check to see if everything trans-to-engine related is tight, and if that checks out, start taking the engine apart and see what you can see.
Reply
Old Oct 8, 2014 | 05:52 PM
  #13  
WCT13's Avatar
On The Tree
iTrader: (1)
 
Joined: Nov 2011
Posts: 156
Likes: 0
From: NC
Default

Welll....its a bearing. Motor coming out new crate motor going in.
Reply
Old Oct 19, 2014 | 12:42 PM
  #14  
slownova73's Avatar
Thread Starter
TECH Enthusiast
iTrader: (31)
 
Joined: Jun 2008
Posts: 598
Likes: 0
From: Asheboro NC
Default

pickup tube came un-tack-welded from the pump, fell off in the pan = spun bearings
Reply
Old Oct 20, 2014 | 10:05 PM
  #15  
cardo0's Avatar
Banned
 
Joined: Jan 2013
Posts: 588
Likes: 0
From: Las Vegas
Default

Sorry to read the news. FWIW i brazed my tube on the pump last time i did one - mostly because i didnt have a weld machine. But u can braze all around the joint/tube if u want. Brazing still takes a lot of heat though and u will need to check your clearances (pickup and pump lid) after brazing.

Thanks for the follow up. Cool nova and hope to get it going again.
Reply
Old Oct 21, 2014 | 04:53 PM
  #16  
slownova73's Avatar
Thread Starter
TECH Enthusiast
iTrader: (31)
 
Joined: Jun 2008
Posts: 598
Likes: 0
From: Asheboro NC
Default

Originally Posted by cardo0
Sorry to read the news. FWIW i brazed my tube on the pump last time i did one - mostly because i didnt have a weld machine. But u can braze all around the joint/tube if u want. Brazing still takes a lot of heat though and u will need to check your clearances (pickup and pump lid) after brazing.

Thanks for the follow up. Cool nova and hope to get it going again.
Thanks but its my brothers (wct13) camaro were having problems with. It'll be back soon.
Reply




All times are GMT -5. The time now is 12:24 PM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
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-6
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-7
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-8
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-9
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