Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

How in the hell do I remove a crank bolt from a longblock that's pulled??????? ARGHHH

Thread Tools
 
Search this Thread
 
Old Mar 25, 2007 | 10:10 PM
  #1  
CoronaL's Avatar
Thread Starter
On The Tree
iTrader: (6)
 
Joined: Jul 2005
Posts: 179
Likes: 0
Default How in the hell do I remove a crank bolt from a longblock that's pulled??????? ARGHHH

Got my LS6 longblock Friday night. All fine and dandy but I can't get the freaking crank bolt off.

No flywheel on motor so I can't wedge/lock it.

Motor just turns and hisses at me when I apply breaker bar to the crank bolt.

tried a $200 625ft/lb 1/2" impact wrench and it just laughed at me. Barely moved pulled and didn't budge bolt.

Tried to head up bolt for about 1min or so, but didn't want to fubar something really bad

any tips or help would be welcomed. I searched but didn't come up with anything
thx
John
Reply
Old Mar 25, 2007 | 10:15 PM
  #2  
ssfast99's Avatar
10 Second Club
iTrader: (3)
 
Joined: Mar 2005
Posts: 596
Likes: 0
From: Rancho Cucamonga, CA
Default

if the pulley is on then grab a band wrench or chain wrench to hold the pulley where it is. if no pulley is off then i use a thin rag and a big adjustable plier to hold the crank snout from moving.
Reply
Old Mar 25, 2007 | 10:28 PM
  #3  
CoronaL's Avatar
Thread Starter
On The Tree
iTrader: (6)
 
Joined: Jul 2005
Posts: 179
Likes: 0
Default

pulley is on
hrm band wrench will hold it?
Reply
Old Mar 25, 2007 | 11:15 PM
  #4  
2xLS1's Avatar
TECH Senior Member
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (25)
 
Joined: Nov 2001
Posts: 5,649
Likes: 9
From: Warr Acres, OK
Default

Turn up the air pressure. My $79 Harbor Freight impact will spin them out.
Reply
Old Mar 26, 2007 | 01:58 AM
  #5  
TheBlurLS1's Avatar
That's what she said...
iTrader: (8)
 
Joined: Mar 2004
Posts: 7,954
Likes: 2
From: Nederland Texas
Default

Screw 2 bolts into the crank on the other end (opposite sides), put a bar between them. Spin crank until bar hits the ground. Then use a breaker on the pulley bolt.
Reply
Old Mar 26, 2007 | 02:04 AM
  #6  
Krab's Avatar
TECH Addict
iTrader: (28)
 
Joined: Sep 2002
Posts: 2,170
Likes: 1
From: Central Texas
Default

If the accessories are on, you could just route the belt in a way that will keep the pulley from spinning and allow you to break the bolt loose. Done this many times on A4 cars/trucks.
Reply
Old Mar 26, 2007 | 06:03 AM
  #7  
joelvette's Avatar
Launching!
iTrader: (11)
 
Joined: Oct 2004
Posts: 284
Likes: 1
From: dayton ohio
Default

summit sells a pulley holder for about 30
Reply
Old Mar 26, 2007 | 07:26 AM
  #8  
CoronaL's Avatar
Thread Starter
On The Tree
iTrader: (6)
 
Joined: Jul 2005
Posts: 179
Likes: 0
Default

Originally Posted by TheBlurLS1
Screw 2 bolts into the crank on the other end (opposite sides), put a bar between them. Spin crank until bar hits the ground. Then use a breaker on the pulley bolt.
great idea
I'll try this, if not the gentleman who stated the summit pulley holder I'll get one of those
thanks alot guys.

I must have spent 1/2 of an afternoon jacking with different impact wrenches, messing with breaker bars etc... .

should have just posted here. Gave neighbor and I an excuse to network his house and drink beer though . Get frustrated with car, go to his house, pop a beer. Finish at bit at his house, go back to car, drink beer. Get frustrated again, well you get the point
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

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

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Mar 26, 2007 | 08:02 AM
  #9  
m6speed's Avatar
Launching!
iTrader: (11)
 
Joined: Nov 2005
Posts: 264
Likes: 0
From: Maryville, IL
Default

Originally Posted by Krab
If the accessories are on, you could just route the belt in a way that will keep the pulley from spinning and allow you to break the bolt loose. Done this many times on A4 cars/trucks.
this is what i did when i was doing a heads/cam swap
Reply
Old Mar 26, 2007 | 08:38 AM
  #10  
CoronaL's Avatar
Thread Starter
On The Tree
iTrader: (6)
 
Joined: Jul 2005
Posts: 179
Likes: 0
Default

no accessories
I'll need them if someone has for sale with brackets bolts etc...
Reply
Old Mar 26, 2007 | 10:46 AM
  #11  
joelvette's Avatar
Launching!
iTrader: (11)
 
Joined: Oct 2004
Posts: 284
Likes: 1
From: dayton ohio
Default

Originally Posted by CoronaL
great idea
I'll try this, if not the gentleman who stated the summit pulley holder I'll get one of those
gentleman? i'm no gentleman, just another workin stiff, relivin my youth.
Reply
Old Mar 26, 2007 | 10:47 AM
  #12  
CoronaL's Avatar
Thread Starter
On The Tree
iTrader: (6)
 
Joined: Jul 2005
Posts: 179
Likes: 0
Default

looked on summit and can't find it!!!
got a link Joel?
Reply
Old Mar 26, 2007 | 10:48 AM
  #13  
brad8266's Avatar
TECH Senior Member
iTrader: (23)
 
Joined: Aug 2005
Posts: 8,797
Likes: 0
From: Watertown, NY
Default

I got bolt out and balancer off just by using an impact wrench, no locking needed.
Reply
Old Mar 26, 2007 | 10:51 AM
  #14  
CoronaL's Avatar
Thread Starter
On The Tree
iTrader: (6)
 
Joined: Jul 2005
Posts: 179
Likes: 0
Default

tried that
$200 625ft/lb impact wrench just sits there and farts
Don't really want to keep hammering on it with the impact as the bolt head is taking abuse and I really don't want to round it off
Reply
Old Mar 26, 2007 | 10:54 AM
  #15  
brad8266's Avatar
TECH Senior Member
iTrader: (23)
 
Joined: Aug 2005
Posts: 8,797
Likes: 0
From: Watertown, NY
Default

Originally Posted by CoronaL
tried that
$200 625ft/lb impact wrench just sits there and farts
Don't really want to keep hammering on it with the impact as the bolt head is taking abuse and I really don't want to round it off
Just keep the impact running on it eventually it will come off. As long as you are using a 24mm socket it wont round off. I had to keep the impact wrench on it for a while to break it free.
Reply
Old Mar 26, 2007 | 11:13 AM
  #16  
CoronaL's Avatar
Thread Starter
On The Tree
iTrader: (6)
 
Joined: Jul 2005
Posts: 179
Likes: 0
Default

I tried for about 3mins and nothing, just slightly budged the pulley and then the aircompressor(borrowed from neighbor) kept blowing my garage fuse. Doesn't like to restart at 100psi :O.
Brad, about how long did it take you?
I'm using a 24mm socket but it's a 12pt is that ok?
Reply
Old Mar 26, 2007 | 11:27 AM
  #17  
bczee's Avatar
TECH Senior Member
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (12)
 
Joined: Jan 2006
Posts: 6,670
Likes: 6
From: Concord, CA
Default

Summit # is SME-906008 $35.95

Also..

Schley GM Harmonic Damper Pulley Puller, Product #: SCH62800 about $60.00..
Reply
Old Mar 26, 2007 | 11:30 AM
  #18  
CoronaL's Avatar
Thread Starter
On The Tree
iTrader: (6)
 
Joined: Jul 2005
Posts: 179
Likes: 0
Default

great thx
Reply
Old Mar 26, 2007 | 12:34 PM
  #19  
santiago's Avatar
TECH Resident
iTrader: (28)
 
Joined: Sep 2004
Posts: 987
Likes: 0
From: norcal
Default

Originally Posted by CoronaL
great thx
before you spend money,take the clutch off and put a bolt in one of the flywheel holes, spin it till it stops, and that should keep everything from spinning all down hill from there.
Reply
Old Mar 26, 2007 | 01:37 PM
  #20  
brad8266's Avatar
TECH Senior Member
iTrader: (23)
 
Joined: Aug 2005
Posts: 8,797
Likes: 0
From: Watertown, NY
Default

Originally Posted by CoronaL
I tried for about 3mins and nothing, just slightly budged the pulley and then the aircompressor(borrowed from neighbor) kept blowing my garage fuse. Doesn't like to restart at 100psi :O.
Brad, about how long did it take you?
I'm using a 24mm socket but it's a 12pt is that ok?
I used a hex socket, i dont like using 12 point sockets, just a personal preference of mine.

It took me about a minute of nonstop impacting for the impact to break it free.
Reply



All times are GMT -5. The time now is 04:40 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE