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

Need help removing 3 bolts from drivers side CAT HELP!!

Thread Tools
 
Search this Thread
 
Old Aug 18, 2002 | 11:43 PM
  #1  
kawboy5792's Avatar
kawboy5792
Thread Starter
Burning Brakes
10 Year Member
 
Joined: May 2002
Posts: 831
Likes: 0
From: Iowa City IA
Default Need help removing 3 bolts from drivers side CAT HELP!!

broke one of these bolts off....whats the best way to get them out....theyre rusty and stuck. :cry
Reply
Old Aug 19, 2002 | 01:57 AM
  #2  
ACEMG73's Avatar
ACEMG73
Intermediate
 
Joined: Aug 2002
Posts: 34
Likes: 0
From: Chicago Illinois
Default Re: Need help removing 3 bolts from drivers side CAT HELP!! (kawboy5792)

I assume your talking about the pipe that attaches to the exhaust manifold. If so, I just went through this problem last week myself. I soaked the bolts in Liquid Wrench for a couple of hours but still ended up breaking all 3 on the pass. side. I bent one on the driver's side pretty bad also. I decided to remove the manifolds from the engine...which I really didn't want to have to do. All I can say now is...I'm glad I did. I took the manifolds to a local muffler shop and the guy charged me $30 to torch out the old studs, and install thicker new ones with some stainless steel nuts and bolts. Driver's side manifold took 5 minutes to remove, pass. side is another story. Last bolt closest to the firewall is a @!#$%! No room to work. Hope this helps. ;)
Reply
Old Aug 19, 2002 | 02:10 AM
  #3  
kawboy5792's Avatar
kawboy5792
Thread Starter
Burning Brakes
10 Year Member
 
Joined: May 2002
Posts: 831
Likes: 0
From: Iowa City IA
Default Re: Need help removing 3 bolts from drivers side CAT HELP!! (ACEMG73)

no, im talking about the three bolts after the catalytic converter that connect the cat to the exhaust system....
Reply
Old Aug 19, 2002 | 02:12 AM
  #4  
1bad85's Avatar
1bad85
Melting Slicks
 
Joined: Jul 2002
Posts: 2,466
Likes: 0
From: livin life one hold my beer moment at a time Houst Tx
Default Re: Need help removing 3 bolts from drivers side CAT HELP!! (ACEMG73)

A few weeks ago I snapped off 2 bolts off each side that connect to the manifold. Tried for 3 days to get them out when finally I just took the manifolds off and used a torch to heat em up and they came right out. Then went down to auto zone and bought 6 new studs and put in there, probably the best "mod" ive done to my car to date. Some good advice ive got for you is take out all 6 studs, drivers side and passenger side. Alot of work now but will save you a big headache in the future. Spend the ten bucks on 6 new studs and put em in.
Reply
Old Aug 19, 2002 | 02:13 AM
  #5  
1bad85's Avatar
1bad85
Melting Slicks
 
Joined: Jul 2002
Posts: 2,466
Likes: 0
From: livin life one hold my beer moment at a time Houst Tx
Default Re: Need help removing 3 bolts from drivers side CAT HELP!! (1bad85)

ah, well in that case just get a good socket to fit them and invest in an impact gun and an air compressor, thatll take em right out. worked for me.


[Modified by 1bad85, 6:13 AM 8/19/2002]
Reply
Old Aug 19, 2002 | 06:36 AM
  #6  
93 ragtop's Avatar
93 ragtop
Le Mans Master
25 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Apr 2000
Posts: 5,713
Likes: 105
From: Manassas VA
Default Re: Need help removing 3 bolts from drivers side CAT HELP!! (kawboy5792)

kawboy,

Im in the same boat as you. I broke the studs off when I pulled my transmission. I tried heat, a easy out and nothing worked. I then drilled them out and retapped the hole, but I did not get it straight, so now I have a exhaust leak. It looks like I am going to have to pull the left converter and replace it. But Im afraid the top connection to the manifold is going to be the same, and it dosnt look like a very easy job to pull the exhaust manifold. By the way, the LT1 like you and I have, has a different exhaust setup then the L98. Good luck, and let us know how it turns out.

Reply
Old Aug 19, 2002 | 07:16 AM
  #7  
GS Ragtop's Avatar
GS Ragtop
Race Director
25 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Nov 1999
Posts: 14,577
Likes: 0
From: Michigan in the summer, Florida the rest of the time
St. Jude Donor '08-'09-'11
Default Re: Need help removing 3 bolts from drivers side CAT HELP!! (kawboy5792)

On my '96, I soked the bolts in Liquid Wrench for 24 hours, adding a bit more of the stuff every few hours. Maybe I got lucky, but mine came out without breaking.

Brad
Reply

Get notified of new replies

To Need help removing 3 bolts from drivers side CAT HELP!!





All times are GMT -4. The time now is 03:33 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
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-9
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