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

crank pulley nightmare

Thread Tools
 
Search this Thread
 
Old Apr 24, 2013 | 01:59 PM
  #1  
pastamike's Avatar
pastamike
Thread Starter
Instructor
 
Joined: May 2010
Posts: 243
Likes: 0
Default crank pulley nightmare

Have seen other post on this topic, even brought home harbor freight's
2 jaw puller set and still cant get this $%$@@%@@ thing off.

short of a lb of c4 on my c4 any other things other then jacking it up and hitting it with a wood n hammer???? Or is this the only thing left to do??

Cant even think how hard it will be to press it back on even if i ever get it off!!!!!!


Reply
Old Apr 24, 2013 | 02:11 PM
  #2  
PMARTINEZ92126's Avatar
PMARTINEZ92126
Racer
20 Year Member
 
Joined: Sep 2002
Posts: 420
Likes: 1
From: SAN DIEGO CA
Default

i used a crank pully i borrowed from autozone and it came out quickly. I think using a two jaw pulley would just jam it on the crank if i remember right. Mine was a pain to remove untill i used that tool.
Reply
Old Apr 24, 2013 | 02:14 PM
  #3  
rad928music's Avatar
rad928music
Burning Brakes
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2005
Posts: 1,096
Likes: 36
From: Coldville
Default

If you can start the car, id let it warm up and then try to take it off.
You can aslo try to rotate the crank and try to pull it off in different positions.
I wouldnt beat on it if you can avoid it.
Reply
Old Apr 24, 2013 | 02:15 PM
  #4  
aboatguy's Avatar
aboatguy
Race Director
15 Year Member
 
Joined: Jan 2005
Posts: 10,641
Likes: 13
From: Slidell Louisiana
Default

What year? Which engine?

If its an LT1 you are probably pulling the hub against itself.

Mike
Reply
Old Apr 24, 2013 | 02:17 PM
  #5  
aboatguy's Avatar
aboatguy
Race Director
15 Year Member
 
Joined: Jan 2005
Posts: 10,641
Likes: 13
From: Slidell Louisiana
Default

Follow this thread for an easy way to remove LT1 hub.

http://forums.corvetteforum.com/c4-t...b-removal.html
Reply
Old Apr 24, 2013 | 02:19 PM
  #6  
pastamike's Avatar
pastamike
Thread Starter
Instructor
 
Joined: May 2010
Posts: 243
Likes: 0
Default

Originally Posted by aboatguy
What year? Which engine?

If its an LT1 you are probably pulling the hub against itself.

Mike

its an 96 lt1 but i cant even get the jaws on to pulley even inside the pulley the thing jams on cross frame member. yet i seen pics of it being done ???? ready for the BIG HAMMER..
Reply
Old Apr 24, 2013 | 02:20 PM
  #7  
pastamike's Avatar
pastamike
Thread Starter
Instructor
 
Joined: May 2010
Posts: 243
Likes: 0
Default

Originally Posted by PMARTINEZ92126
i used a crank pully i borrowed from autozone and it came out quickly. I think using a two jaw pulley would just jam it on the crank if i remember right. Mine was a pain to remove untill i used that tool.


what type of puller was it you used????
Reply
Old Apr 24, 2013 | 02:23 PM
  #8  
pastamike's Avatar
pastamike
Thread Starter
Instructor
 
Joined: May 2010
Posts: 243
Likes: 0
Default

Originally Posted by rad928music
If you can start the car, id let it warm up and then try to take it off.
You can aslo try to rotate the crank and try to pull it off in different positions.
I wouldnt beat on it if you can avoid it.
cant run it water pump is off and opti is cracked in half, and soaked with antifreeze..
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

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

 Joe Kucinski
story-8

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

 Joe Kucinski
story-9

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

 Verdad Gallardo
Old Apr 24, 2013 | 02:29 PM
  #9  
Silver96ce's Avatar
Silver96ce
Drifting
10 Year Member
Liked
Top Answer: 1
 
Joined: Mar 2012
Posts: 1,492
Likes: 61
From: New Jersey
Default

Last month I pulled the crank hub pulley. I used a 4 inch two jaw puller. I reversed the jaws to pull from inside the flange. I had to maneuver it around to catch and I put the center screw through the loop in the power steering hard lines. It took awhile but I got it.

Don't try to pull on the outside edge of the pulley as it is two pieces with a rubber layer between - you'll damage the rubber layer. I had to remove the radiator and fans - good reason to clean the radiator anyway.

You can also use the wooden block and hammer method from below. Do a search as there a few threads on it.

Just have patience and you will get it. Good luck.
Reply
Old Apr 24, 2013 | 02:30 PM
  #10  
LoneStarV's Avatar
LoneStarV
Burning Brakes
 
Joined: Aug 2011
Posts: 878
Likes: 2
Default

Try one of these. Those jaw pullers can be a pain.

http://www.summitracing.com/parts/pro-66514/overview/

http://www.summitracing.com/parts/sum-g1025/overview/

http://www.summitracing.com/parts/wm...1/media/images
Reply
Old Apr 24, 2013 | 02:36 PM
  #11  
Silver96ce's Avatar
Silver96ce
Drifting
10 Year Member
Liked
Top Answer: 1
 
Joined: Mar 2012
Posts: 1,492
Likes: 61
From: New Jersey
Default

On the LT1 the crank hub is two pieces - he is just trying to pull the outer section off the hub. I don't think those will work unless he is going to pull the entire crank hub. Since it is not keyed like earlier balancers he'll have to mark the position to get it back on correctly if he goes that route.
Reply
Old Apr 24, 2013 | 02:39 PM
  #12  
aboatguy's Avatar
aboatguy
Race Director
15 Year Member
 
Joined: Jan 2005
Posts: 10,641
Likes: 13
From: Slidell Louisiana
Default

Originally Posted by pastamike
what type of puller was it you used????
Did you look at the thread I linked to?

If your stuck with the balancer on the hub. Remove all three balancer bolts use a bronze or brass bar and a hammer and from underneath strike the back of the balancer then spin the engine a 1/4 turn strike it again spin it a 1/4 turn and repeat. If you have a BFH it should come off pretty easily. (Big Fine Hammer). If you don't have a soft metal bar a piece of hard wood should work in a pinch.

Theres a loop in the power steering line that will let you use a puller without removing the radiator and other such nonsense.

The damper is not pressed onto the hub, you must have rust or corrosion welding them together unless you missed a bolt.
MIke

Last edited by aboatguy; Apr 24, 2013 at 02:54 PM.
Reply
Old Apr 24, 2013 | 02:42 PM
  #13  
LoneStarV's Avatar
LoneStarV
Burning Brakes
 
Joined: Aug 2011
Posts: 878
Likes: 2
Default

Originally Posted by Silver96ce
On the LT1 the crank hub is two pieces - he is just trying to pull the outer section off the hub. I don't think those will work unless he is going to pull the entire crank hub. Since it is not keyed like earlier balancers he'll have to mark the position to get it back on correctly if he goes that route.
Ah ok....i have the old chevy gen 1 set up on my 88. Sounds like his is a real pain. I bet he has no knuckles and no beer left by now.
Reply
Old Apr 24, 2013 | 02:43 PM
  #14  
True Mountaneer's Avatar
True Mountaneer
Instructor
 
Joined: Mar 2013
Posts: 126
Likes: 0
From: Gay WV
Default

If you use a gear puller you will pull the outer ring of your balancer .I don't know if I would trust it now or not,Better look it over were the rubber seperates the ring from the hub...you need a wheel puller,they bolt on in a Y pattern
Reply
Old Apr 24, 2013 | 03:27 PM
  #15  
pastamike's Avatar
pastamike
Thread Starter
Instructor
 
Joined: May 2010
Posts: 243
Likes: 0
Default

Originally Posted by Silver96ce
Last month I pulled the crank hub pulley. I used a 4 inch two jaw puller. I reversed the jaws to pull from inside the flange. I had to maneuver it around to catch and I put the center screw through the loop in the power steering hard lines. It took awhile but I got it.

Don't try to pull on the outside edge of the pulley as it is two pieces with a rubber layer between - you'll damage the rubber layer. I had to remove the radiator and fans - good reason to clean the radiator anyway.

You can also use the wooden block and hammer method from below. Do a search as there a few threads on it.

Just have patience and you will get it. Good luck.
That's what i'm using now trying to get it off, and i think the thing is so rusted on is why its being such a bear!!! i sprayed the hell out of it with Pb blaster and letting it soak in, if i cant get the puller to line up I'll go to the hammer and wood method one way or not its coming off never say die..
thanks for all the input and help.

mike
Reply
Old Apr 24, 2013 | 03:28 PM
  #16  
pastamike's Avatar
pastamike
Thread Starter
Instructor
 
Joined: May 2010
Posts: 243
Likes: 0
Default

Oh ya out of beer,vodka,cigs and knuckles lol..
Reply
Old Apr 24, 2013 | 04:23 PM
  #17  
higgyburners's Avatar
higgyburners
Le Mans Master
15 Year Member
Photogenic
Photoriffic
Liked
 
Joined: Mar 2010
Posts: 8,172
Likes: 17
From: Eugene Oregon
I believe in the Beer Fairy
St. Jude Donor '15,'19
Default

Hey Pastamike, I think the key is the PB Blaster give it a good long soak. I wouldn't bother with the puller i tried it before and it didnt work for me so i went with the dowel and hammer method. It wont be a pain to put back on just apply some anti-sieze for next time.
Reply

Get notified of new replies

To crank pulley nightmare

Old Apr 24, 2013 | 06:12 PM
  #18  
aminnich's Avatar
aminnich
Le Mans Master
 
Joined: Jan 2006
Posts: 6,564
Likes: 6
From: Woodstock Georgia
Default

Originally Posted by pastamike
Have seen other post on this topic, even brought home harbor freight's
2 jaw puller set and still cant get this $%$@@%@@ thing off.

short of a lb of c4 on my c4 any other things other then jacking it up and hitting it with a wood n hammer???? Or is this the only thing left to do??

Cant even think how hard it will be to press it back on even if i ever get it off!!!!!!


You don't need any puller. Unbolt the pulley from the hub, there are just 3 bolts holding the pulley to the hub. Then from under the car use a 1"x1" piece of hardwood and a heavy hammer and tap the pulley off. Rotate the engine if necessary and also put the wood as close to the hub/crank as possible. Once off coat with never seize before re-installing. Bolt pattern is offset, so it will only bolt back on one way. You only need to remove the hub if you are replacing the front cover/seals.

Last edited by aminnich; Apr 24, 2013 at 06:15 PM.
Reply
Old Apr 24, 2013 | 07:15 PM
  #19  
65Z01's Avatar
65Z01
Team Owner
20 Year Member
 
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Default

Oh ya out of beer,vodka,cigs and knuckles lol..
Ain't that one of the "endearing" aspects of our C4s...
Reply
Old Apr 24, 2013 | 07:35 PM
  #20  
pastamike's Avatar
pastamike
Thread Starter
Instructor
 
Joined: May 2010
Posts: 243
Likes: 0
Default

Originally Posted by aminnich
You don't need any puller. Unbolt the pulley from the hub, there are just 3 bolts holding the pulley to the hub. Then from under the car use a 1"x1" piece of hardwood and a heavy hammer and tap the pulley off. Rotate the engine if necessary and also put the wood as close to the hub/crank as possible. Once off coat with never seize before re-installing. Bolt pattern is offset, so it will only bolt back on one way. You only need to remove the hub if you are replacing the front cover/seals.

yeah have the three bolts out, and gave up on puller soaked the crap out of it with PB BLASTER letting it soak over night, then get it off in the morning.

then clean the motor, and replace water pump, and opti, and the seals too.. ounce again guys thanks for all the input and help..

pastamike...
Reply



All times are GMT -4. The time now is 07:30 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