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

Valvespring Compressed and Stuck!

Thread Tools
 
Search this Thread
 
Old Apr 20, 2006 | 01:49 AM
  #1  
rg42284's Avatar
Thread Starter
Staging Lane
iTrader: (4)
 
Joined: Apr 2002
Posts: 89
Likes: 0
From: Phoeniz, AZ
Question Valvespring Compressed and Stuck!

I'm having problem with my ls1 in my rx7. The rocker on the intake side on piston 1 broke and dumped needle bearings all over the place. I installed a set of harland sharp 1.7 rockers today. I rotate the engine and see that the rocker on the intake side on piston 1 is not moving at all. The spring is staying in the compressed position; all the other rockers work normally.

Any ideas? I don't want to remove the heads.
Reply
Old Apr 20, 2006 | 01:51 AM
  #2  
orangeapeel's Avatar
ЯєŧąяĐ Єl¡m¡иąŧøя ™
iTrader: (18)
 
Joined: Nov 2004
Posts: 16,083
Likes: 4
From: Justin, TX
Default

You know, I was just thinking...Some of those bearings might have gotten tangled up down there and be jamming something past the lifter or pushrod.
Reply
Old Apr 20, 2006 | 01:53 AM
  #3  
rg42284's Avatar
Thread Starter
Staging Lane
iTrader: (4)
 
Joined: Apr 2002
Posts: 89
Likes: 0
From: Phoeniz, AZ
Default

Wouldn't the exhaust side be the one with teh stuck spring then as the oil galley is there by it?
Reply
Old Apr 20, 2006 | 02:01 AM
  #4  
orangeapeel's Avatar
ЯєŧąяĐ Єl¡m¡иąŧøя ™
iTrader: (18)
 
Joined: Nov 2004
Posts: 16,083
Likes: 4
From: Justin, TX
Default

Stranger things have happened. But you are probably right. Hopefully it is a stubborn rocker.
Reply
Old Apr 20, 2006 | 02:32 AM
  #5  
tbojbob's Avatar
Launching!
 
Joined: Mar 2002
Posts: 202
Likes: 0
From: nowhere in particular
Default

Could the rocker have a clearance issue with the side of the head, I know my heads needed some Dremel action for my Harland Sharps to clear......
Reply
Old Apr 20, 2006 | 02:33 AM
  #6  
heavymetals's Avatar
TECH Fanatic
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (3)
 
Joined: Mar 2006
Posts: 1,586
Likes: 9
From: Southern Calif.
Default

When the rocker failed it could have screwed up the geometry enough so that the valve stem got bent.

That would explain the stuck valve.

The only way to tell is to remove the rocker.

There is no way that I can see one of the bearings jamming up the works good enough to hold a valve stuck under spring pressure.

Good luck
Reply
Old Apr 20, 2006 | 02:36 AM
  #7  
orangeapeel's Avatar
ЯєŧąяĐ Єl¡m¡иąŧøя ™
iTrader: (18)
 
Joined: Nov 2004
Posts: 16,083
Likes: 4
From: Justin, TX
Default

It would have to be a monster of a bearing!
Those things look like you might have to massage the valve cover to get it to fit right as well.
Reply
Old Apr 20, 2006 | 02:46 AM
  #8  
rg42284's Avatar
Thread Starter
Staging Lane
iTrader: (4)
 
Joined: Apr 2002
Posts: 89
Likes: 0
From: Phoeniz, AZ
Default

I removed the rocker and rotated the engine and the same results; the intake valvespring still staying compressed.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

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

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

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

 Pouria Savadkouei
story-6

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

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Apr 20, 2006 | 02:53 AM
  #9  
heavymetals's Avatar
TECH Fanatic
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (3)
 
Joined: Mar 2006
Posts: 1,586
Likes: 9
From: Southern Calif.
Default

Sorry for your problem.

I guess your gonna be taking a head off.
Reply
Old Apr 20, 2006 | 04:02 AM
  #10  
rg42284's Avatar
Thread Starter
Staging Lane
iTrader: (4)
 
Joined: Apr 2002
Posts: 89
Likes: 0
From: Phoeniz, AZ
Default

If someone offers my asking price, I'm going to have to sell it.

https://ls1tech.com/forums/vehicles-sale-lsx-powered-only/492355-fs-ls1-1994-mazda-rx7.html
Reply




All times are GMT -5. The time now is 12:37 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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