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

Front Spring

Thread Tools
 
Search this Thread
 
Old May 4, 2013 | 03:41 PM
  #1  
Cellkid's Avatar
Cellkid
Thread Starter
Racer
 
Joined: Apr 2007
Posts: 380
Likes: 0
From: Long Island New York
Default Front Spring

Ok. So I thought I was in the home stretch getting my front suspension back together until i went to torque the lower control arm bolts. I did the drivers side first by putting a jack underneath the control arm and raising in till the car just about lifted of the jack stand, torqued it no problem. Now the passenger side I went to do the same thing but there was no movement in the spring. One pump and the car was lifting off the jackstand. I seperated the shock from the lower arm and the arm moves freely and the shock compressed with no problem. After scratching my head I realized the spring was not returning to the arch position like it was before I raised it to install the shock. Any reason why this would happen? Improperly installed? It was fine before i dissasembled over the winter and fine before I compressed it to install the shock. Any help would be appreciated.

Thanks
Reply
Old May 5, 2013 | 03:08 PM
  #2  
aboatguy's Avatar
aboatguy
Race Director
15 Year Member
 
Joined: Jan 2005
Posts: 10,641
Likes: 13
From: Slidell Louisiana
Default

I've pulled the front spring a few times on a couple of different c4s the only time I could not get the spring compressed enough to attach the balljoint was on a 92 with the engine removed. We ended up chaining the cross member to the lift and then jacking the lower control arm . But I don't know the details of your dilemma. what happens when you continue to pump the jack does the car keep going up or does the spring start to compress?


Was the spring centered and spring mounts tight before you installed the other side?

Mike
Reply
Old May 5, 2013 | 04:20 PM
  #3  
leesvet's Avatar
leesvet
Safety Car
10 Year Member
 
Joined: Apr 2011
Posts: 3,660
Likes: 22
Default

I'd guess the spring has slipped off a mount in the center or off a rubber mount block.

Without seeing it, my guess would be that you should undo whats been reconnected, and drop the center mount and see if you can spot the problem, then assemble from the passenger side then the drivers...

its probably slipped, so its got to be re-centered and cinched.
Reply
Old May 5, 2013 | 04:27 PM
  #4  
aboatguy's Avatar
aboatguy
Race Director
15 Year Member
 
Joined: Jan 2005
Posts: 10,641
Likes: 13
From: Slidell Louisiana
Default

Originally Posted by aboatguy
I've pulled the front spring a few times on a couple of different c4s the only time I could not get the spring compressed enough to attach the balljoint was on a 92 with the engine removed. We ended up chaining the cross member to the lift and then jacking the lower control arm . But I don't know the details of your dilemma. what happens when you continue to pump the jack does the car keep going up or does the spring start to compress?


Was the spring centered and spring mounts tight before you installed the other side?

Mike
Originally Posted by leesvet
I'd guess the spring has slipped off a mount in the center or off a rubber mount block.

Without seeing it, my guess would be that you should undo whats been reconnected, and drop the center mount and see if you can spot the problem, then assemble from the passenger side then the drivers...

its probably slipped, so its got to be re-centered and cinched.
Concur!!! my initial thoughts were the OP was lowering his car, cut the rubber, but did not trim the mounting brackets which is why I asked this....

Cellkid, Was the spring centered and spring mounts tight before you installed the other side?


If he cut the rubber or removed the rubber and installed wedges without trimming the brackets it will slip again.

Last edited by aboatguy; May 5, 2013 at 04:40 PM.
Reply
Old May 5, 2013 | 04:45 PM
  #5  
leesvet's Avatar
leesvet
Safety Car
10 Year Member
 
Joined: Apr 2011
Posts: 3,660
Likes: 22
Default

YUP...


the best lessons I EVER had were from doing it twice...
Reply
Old May 5, 2013 | 08:46 PM
  #6  
Cellkid's Avatar
Cellkid
Thread Starter
Racer
 
Joined: Apr 2007
Posts: 380
Likes: 0
From: Long Island New York
Default

I did cut the rubber and install lowering wedges while I had it apart and I did trim the brackets. When I reinstalled the spring I snugged up both sides evenly and then tightened. I was messing around last night and checked the spring and it is still securely seated in the brackets on both sides.While out there I was experimenting and have come to the conclusion that the shock is causing the issue. With the shock off the car the lower control arm and spring travel without issue. Could overtightening the top shock bolt causing binding in the shock assembly itself?
Reply
Old May 5, 2013 | 09:29 PM
  #7  
Dynamite76's Avatar
Dynamite76
Advanced
 
Joined: Aug 2012
Posts: 62
Likes: 0
From: VIR
Default

I just replaced my shocks and lower and upper control arms. I am not clear on what issue you are having but I had to raise my lower control arms with a jack until the chassis was off the jack stands on the corner I was working on before the lower shock mount was in close enough bolt up, (just a few threads on shock top showing). Once in place there was only a very slight deflection down of the control arms when the jack was removed; I didn't measure it but I'd say maybe an inch or two - if that. Took it out for a drive, everything seems great and way better than what I had before.
Reply
Old May 5, 2013 | 11:40 PM
  #8  
leesvet's Avatar
leesvet
Safety Car
10 Year Member
 
Joined: Apr 2011
Posts: 3,660
Likes: 22
Default

is the shock top sleeve/cover hung on the lower shock body so it cannot compress?
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-1

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-2

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-3

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-4

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-5

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

 Michael S. Palmer
story-6

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

 Joe Kucinski
story-7

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

 Michael S. Palmer
story-8

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

 Joe Kucinski
story-9

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
Old May 6, 2013 | 12:31 AM
  #9  
Cellkid's Avatar
Cellkid
Thread Starter
Racer
 
Joined: Apr 2007
Posts: 380
Likes: 0
From: Long Island New York
Default

Sleeve is clear. It compresses now but very slow which is probably normal since I am using an FHA spring and Bilstein extreme shocks from VBP. I found that my torque wrench is out of calibration and I think I way over torqued the top nut. The driver side compresses a little easier but im not going to sweat it now im going to get the car on the ground drive it let everything settle and the check everything again
Reply

Get notified of new replies

To Front Spring





All times are GMT -4. The time now is 12:05 PM.

story-0
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-1
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


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