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

Pulling LT1 from a 93 auto

Thread Tools
 
Search this Thread
 
Old Dec 30, 2010 | 07:38 PM
  #1  
C4fan's Avatar
C4fan
Thread Starter
Melting Slicks
10 Year Member
 
Joined: Feb 2009
Posts: 2,072
Likes: 1
From: Oklahoma City OK
St. Jude '10
Default Pulling LT1 from a 93 auto

Can anyone tell me how to get to the tranny bolt on top? It looks like it would be easier from the top by moving the big wire harness but that looks to be a job in itself. The pics I see from other threads look like the wires are still there.
Reply
Old Dec 30, 2010 | 07:59 PM
  #2  
rodj's Avatar
rodj
Le Mans Master
25 Year Member
 
Joined: Aug 2000
Posts: 8,838
Likes: 31
From: Australia
Default

3ft of extensions and a swivel joint on the socket from underneath
Reply
Old Dec 30, 2010 | 08:03 PM
  #3  
PLRX's Avatar
PLRX
Team Owner
 
Joined: Aug 2005
Posts: 34,988
Likes: 515
From: Riverside County Southern California
Co-winner 2020 C4 of the Year - Modified
2018 Corvette of Year Finalist
2017 C4 of Year
2016 C7 of Year Finalist
St. Jude Donor '09 thru '20
Default

Originally Posted by rodj
3ft of extensions and a swivel joint on the socket from underneath


Based on the multiple threads, thats the only way. Watch out for the firewall and gas pump shut off sensor.
Reply
Old Dec 30, 2010 | 08:27 PM
  #4  
C4fan's Avatar
C4fan
Thread Starter
Melting Slicks
10 Year Member
 
Joined: Feb 2009
Posts: 2,072
Likes: 1
From: Oklahoma City OK
St. Jude '10
Default

That makes sense and I can stop fartin around with the top side.
Thanks to both of you
Reply
Old Dec 31, 2010 | 05:50 AM
  #5  
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

Also, do you have the c beam out? It helps alot to tilt the transmission down to access the the bolt.
Reply
Old Dec 31, 2010 | 05:51 AM
  #6  
cv67's Avatar
cv67
Team Owner
15 Year Member
 
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
Default

It helps alot to tilt the transmission down to access the the bolt.
Reply
Old Dec 31, 2010 | 12:28 PM
  #7  
Mo_Bandy's Avatar
Mo_Bandy
Melting Slicks
20 Year Member
 
Joined: Dec 2000
Posts: 2,719
Likes: 59
From: Fremont Oh
Default

As was mentioned, drop the C-Beam let the rear of the trans drop a little bit... Use a 14mm swivel socket and a long extension it works great! watch you don't let the rear of the engine drop back too far or you will start crushing stuff...

MO
Reply
Old Dec 31, 2010 | 12:59 PM
  #8  
C4fan's Avatar
C4fan
Thread Starter
Melting Slicks
10 Year Member
 
Joined: Feb 2009
Posts: 2,072
Likes: 1
From: Oklahoma City OK
St. Jude '10
Default

Remove c beam and tilt tranny, got it. What about the front of the engine? Is it better to pull the balancer? I'm sure I can deal with the water pump and power steering.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-1

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

 Joe Kucinski
story-2

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

 Verdad Gallardo
story-3

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

 Joe Kucinski
story-4

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

 Verdad Gallardo
story-5

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-6

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

 Michael S. Palmer
story-7

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

 Joe Kucinski
story-8

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

 Michael S. Palmer
story-9

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

 Joe Kucinski
Old Jan 1, 2011 | 04:15 AM
  #9  
Mo_Bandy's Avatar
Mo_Bandy
Melting Slicks
20 Year Member
 
Joined: Dec 2000
Posts: 2,719
Likes: 59
From: Fremont Oh
Default

No nothing needs to be done to the power steering or balancer, just let the engine set on its motor mounts.

MO
Reply
Old Jan 1, 2011 | 06:18 AM
  #10  
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

Just to verify what you are doing here, I take it by your post title you are pulling the motor.
Let me say, I have never pulled the entire motor myself, but have the heads, and transmission, etc.
But, it is my understanding, it is easier to pull the transmission first, then you can pull the motor all as one assembly, including accessories, headers etc, as one unit. I will try to find a link to this and add it to this post.

Look at this post, espically the pictures by 96GS#007 http://forums.corvetteforum.com/c4-t...-and-pics.html

Last edited by 93 ragtop; Jan 1, 2011 at 06:28 AM.
Reply
Old Jan 1, 2011 | 10:22 AM
  #11  
jwt1603's Avatar
jwt1603
Melting Slicks
Supporting Lifetime Gold
Conversation Starter
Liked
Loved
Community Favorite
 
Joined: Mar 2005
Posts: 2,350
Likes: 228
From: Northeast FL
Default

Originally Posted by Mo_Bandy
As was mentioned, drop the C-Beam let the rear of the trans drop a little bit... Use a 14mm swivel socket and a long extension it works great! watch you don't let the rear of the engine drop back too far or you will start crushing stuff...

MO

We just replaced the rear main seal (and stage four disc that was coated with oil) Friday and that's how to do it. Brace the back half of the motor on the oil pan (with a 2X4 on a jack to spread the weight) and another jack under the transmission and slowly lower both jacks until you can get to the bolt. We typically use a "wobbly" extension which will hold a little more pressure than a universal joint. Either will work.

From pulling it into the garage to backing out of the garage less than six hours. We didn't think that was too bad. Add in that we had to replace one of the driveshaft u-joints which cost us some time, and cleaning the oil out of the bellhousing, and off the flywhel and pressure plate, and I think we did OK on time. We've obviously pulled the trans and / or motor too many times.
Reply
Old Jan 1, 2011 | 10:35 AM
  #12  
C4fan's Avatar
C4fan
Thread Starter
Melting Slicks
10 Year Member
 
Joined: Feb 2009
Posts: 2,072
Likes: 1
From: Oklahoma City OK
St. Jude '10
Default

Thanks for the help guys the reason for pulling the engine was to replace it. It all started out as a H/C mod when I bought a set of Ron's (cuisinartvette) ported heads. Then with his help I ended up getting a 383 bottom end from a Brad at QMP Racing.

Geez, it took me 6 hours just to get them top 2 bolts out. I will say that you need to use a 1/2" drive set up to get them out. The 3/8" was easier to get in place but just didn't have the torque needed to break them loose.

Reply
Old Jan 1, 2011 | 11:28 AM
  #13  
Mo_Bandy's Avatar
Mo_Bandy
Melting Slicks
20 Year Member
 
Joined: Dec 2000
Posts: 2,719
Likes: 59
From: Fremont Oh
Default

Originally Posted by tuffLUV
Remove c beam and tilt tranny, got it. What about the front of the engine? Is it better to pull the balancer? I'm sure I can deal with the water pump and power steering.
Sorry i must have misread the post, I thought you were just pulling the transmission.

In any event you do not need to pull the balancer. I would just pull the accessory bracket and set it off to the side.

Regards,
MO
Reply
Old Jan 1, 2011 | 03:06 PM
  #14  
C4fan's Avatar
C4fan
Thread Starter
Melting Slicks
10 Year Member
 
Joined: Feb 2009
Posts: 2,072
Likes: 1
From: Oklahoma City OK
St. Jude '10
Default



Thanks Mo, the engine was out last night. I appreciate everyone's help. Now, I may never get the other one back in right but maybe that's another thread.
Reply

Get notified of new replies

To Pulling LT1 from a 93 auto





All times are GMT -4. The time now is 11:06 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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