LS1TECH - Camaro and Firebird Forum Discussion

Automatic Transmission 2-Speed thru 10-Speed GM Autos | Converters | Shift Kits
Sponsored by:
Sponsored by:

Calling all 4l80E experts!

Thread Tools
 
Search this Thread
 
Old May 14, 2017 | 06:32 PM
Share
  #1  
NOVALSX's Avatar
NOVALSX
Thread Starter
Teching In
 
Joined: Aug 2016
Posts: 25
Likes: 2
From: Caldwell, OH
Default Calling all 4l80E experts!
Ok, I need some advice. Putting together an LQ9 and 4l80. Put them together last night and I didn't get the converter all the way on. I started bolting them together and relised the problem. I had about a 1/4 gap around the bellhousing to go before the engine and trans were mated together. Did I screw up the transmission pump?
Reply
0
Old May 14, 2017 | 08:25 PM
Share
  #2  
clinebarger's Avatar
clinebarger
TECH Fanatic
 
Joined: Jan 2015
Posts: 1,114
Likes: 33
From: Fort Worth, Texas
Default
It's a high possibility if you torqued on the bellhousing bolts
Reply
0
Old May 15, 2017 | 02:14 AM
Share
  #3  
NOVALSX's Avatar
NOVALSX
Thread Starter
Teching In
 
Joined: Aug 2016
Posts: 25
Likes: 2
From: Caldwell, OH
Default
Never got them all the way torqued. Still had about 1/4" to go.
Reply
0
Old May 15, 2017 | 09:27 PM
Share
  #4  
clinebarger's Avatar
clinebarger
TECH Fanatic
 
Joined: Jan 2015
Posts: 1,114
Likes: 33
From: Fort Worth, Texas
Default
If you didn't apply pressure to the pump gear, Your probably OK. But I couldn't guarantee it.
Reply
0
Old May 16, 2017 | 02:12 AM
Share
  #5  
NOVALSX's Avatar
NOVALSX
Thread Starter
Teching In
 
Joined: Aug 2016
Posts: 25
Likes: 2
From: Caldwell, OH
Default
Ok, thanks.
Reply
0
Old May 16, 2017 | 10:47 AM
Share
  #6  
82cetuner's Avatar
82cetuner
10 Second Club
iTrader: (9)
 
Joined: Sep 2009
Posts: 1,368
Likes: 7
From: Denham Springs, LA
Default
most likely you damaged pump. if the tc was already flat against the flywheel and you were still torquing down you ruined it. if it didnt lock up you may be ok. ususally you wont be able to turn it anymore if you did. if its free you still got a chance but i might would pull it apart and inspect it
Reply
0
Old May 17, 2017 | 06:45 AM
Share
  #7  
Game ova's Avatar
Game ova
TECH Junkie
 
Joined: Jul 2015
Posts: 3,012
Likes: 48
Default
Originally Posted by NOVALSX
Ok, I need some advice. Putting together an LQ9 and 4l80. Put them together last night and I didn't get the converter all the way on. I started bolting them together and relised the problem. I had about a 1/4 gap around the bellhousing to go before the engine and trans were mated together. Did I screw up the transmission pump?
I SERIOUSLY doubt that you hurt the pump, especially since you didn't try to start the car with it like that. All that happened was the converter sat on top of the pump gear tangs.... which is why you had the 1/4 inch gap. If you were to measure the tangs on the crescent gear.....its roughly a 1/4 inch. You're fine man, seat the converter and carry on.
Reply
0

Trending Topics

Old May 18, 2017 | 01:43 PM
Share
  #8  
82cetuner's Avatar
82cetuner
10 Second Club
iTrader: (9)
 
Joined: Sep 2009
Posts: 1,368
Likes: 7
From: Denham Springs, LA
Default
not true at all. helped a friend install his 4l80e and he didnt have converter all the way on, starting tighting it down and relized it was touching flywheel already. pulled trans back out and you couldnt even turn the shafts they were locked. the pump was complelty destroyed. it didnt take much to mess one up.
Reply
0
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 May 22, 2017 | 06:47 PM
Share
  #9  
rpturbo's Avatar
rpturbo
TECH Addict
15 Year Member
Photogenic
Liked
Loved
iTrader: (47)
 
Joined: Nov 2008
Posts: 2,424
Likes: 229
From: A-Town, Ill side
Default
I agree, it doesn't take much to break the pump when putting the trans and engine together by not properly seating the converter.
Reply
0
Back to Subforum
Automatic Transmission
View Next Unread
Need 4l80e dipstick measurement....




Advanced Search

All times are GMT -5. The time now is 04:27 PM.

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