C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Problem with crank pully

Thread Tools
 
Search this Thread
 
Old Dec 12, 2010 | 01:41 PM
  #1  
tpovette's Avatar
tpovette
Thread Starter
5th Gear
 
Joined: Dec 2010
Posts: 5
Likes: 0
From: Houston TX
Default Problem with crank pully

Started my c5 this morning and heard a grinding noise. Investigating I found that the serpentine pulley on the crank had slid back rubbing on the timing chain cover. Does the assembly have to be replaced or can it be repositioned forward on the rubber dampeners? If so how?
Reply
Old Dec 12, 2010 | 01:43 PM
  #2  
lucky131969's Avatar
lucky131969
Tech Contributor
15 Year Member
Active Streak: 30 Days
Community Builder
Liked
 
Joined: Jan 2007
Posts: 19,293
Likes: 1,110
From: Dyer, IN
Default

Originally Posted by tpovette
Started my c5 this morning and heard a grinding noise. Investigating I found that the serpentine pulley on the crank had slid back rubbing on the timing chain cover. Does the assembly have to be replaced or can it be repositioned forward on the rubber dampeners? If so how?
Nope, time for replacement, the balancer has separated.
Reply
Old Dec 12, 2010 | 01:47 PM
  #3  
Cratecruncher's Avatar
Cratecruncher
Instructor
15 Year Member
Liked
 
Joined: Jun 2008
Posts: 233
Likes: 1
From: Austin Texas
Default

Also, if it were my car, I wouldn't start that engine until a new damper is installed. Others have reported their pulleys flying off (EDIT: perhaps "coming off" would have been a better description) resulting in very expensive collateral damage.

Last edited by Cratecruncher; Dec 12, 2010 at 03:10 PM.
Reply
Old Dec 12, 2010 | 01:54 PM
  #4  
tpovette's Avatar
tpovette
Thread Starter
5th Gear
 
Joined: Dec 2010
Posts: 5
Likes: 0
From: Houston TX
Default

Any suggestions on how to lock up the engine in order to pull the 250 lb torqued bolt? I have an automatic trans
Reply
Old Dec 12, 2010 | 01:54 PM
  #5  
lucky131969's Avatar
lucky131969
Tech Contributor
15 Year Member
Active Streak: 30 Days
Community Builder
Liked
 
Joined: Jan 2007
Posts: 19,293
Likes: 1,110
From: Dyer, IN
Default

Originally Posted by Cratecruncher
Others have reported their pulleys flying off resulting in very expensive collateral damage.
Wow can you direct me to that thread? I've never heard of a balancer "flying off".............I don't know how it could get passed the rack.
Reply
Old Dec 12, 2010 | 02:38 PM
  #6  
Cratecruncher's Avatar
Cratecruncher
Instructor
15 Year Member
Liked
 
Joined: Jun 2008
Posts: 233
Likes: 1
From: Austin Texas
Default

LUCKY131969,

Hmm, you could start with damaging the rack trying to get "passed" it. Then there is the timing cover that it's currently making metal to metal contact with.

The reason I posted the comment was to warn the OP that more damage could result if he starts that engine again. (He likely knew that anyway.) Sorry if my first post seemed too alarmist to you LUCKY. I've revised it.

TPOVETTE,

I have not done this repair yet. However, my Balancer is beginning to wobble so I've been reading most of the HB related posts. Until someone with more experience posts to your thread I'd suggest doing a search of the older threads. There are several techniques mentioned.

Last edited by Cratecruncher; Dec 12, 2010 at 03:13 PM.
Reply
Old Dec 12, 2010 | 03:09 PM
  #7  
tpovette's Avatar
tpovette
Thread Starter
5th Gear
 
Joined: Dec 2010
Posts: 5
Likes: 0
From: Houston TX
Default

Originally Posted by Cratecruncher
Hmm, you could start with damaging the rack trying to get "passed" it. Then there is the timing cover that it's currently making metal to metal contact with.

The reason I posted the comment was to merely to warn the OP that more damage could result if he starts that engine again. (He likely knew that anyway.) Sorry if my first post seemed too alarmist to you LUCKY.

TPOVETTE,

I have not done this repair yet. However, my Balancer is beginning to wobble so I've been reading most of the HB related posts. Until someone with more experience posts to your thread I'd suggest doing a search of the older threads. There are several techniques mentioned.
Thanks for the reply, never intended on restarting. the older threads all suggested putting the trans in 5th gear on manuals.
Reply
Old Dec 12, 2010 | 03:18 PM
  #8  
bumble-z's Avatar
bumble-z
Le Mans Master
15 Year Member
 
Joined: May 2007
Posts: 5,393
Likes: 17
From: Belleville Mich.
Default

I read a post where one took a H/D impact to the bolt on an automatic. Make sense?
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

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

 Michael S. Palmer
story-1

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

 Joe Kucinski
story-2

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

 Michael S. Palmer
story-3

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

 Joe Kucinski
story-4

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-5

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-6

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
story-7

10 Things C8 Corvette Owners Hate (But Won't Tell You)

 Joe Kucinski
story-8

10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

 Brett Foote
story-9

Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

 Joe Kucinski
Old Dec 12, 2010 | 03:19 PM
  #9  
MawneeC5's Avatar
MawneeC5
Melting Slicks
20 Year Member
 
Joined: Aug 2004
Posts: 2,237
Likes: 9
From: Springhill FL
Default

There are flywheel locking tools that are probably your best option. There are two versions. One that goes in place of your starter. And one that bolts to the front of your crank pulley and wedges against the frame.

Some just stick a long bolt or punch through a flywheel hole into the block. But there have been reports of damaged/bent flywheels from this method.
Reply
Old Dec 12, 2010 | 03:20 PM
  #10  
lucky131969's Avatar
lucky131969
Tech Contributor
15 Year Member
Active Streak: 30 Days
Community Builder
Liked
 
Joined: Jan 2007
Posts: 19,293
Likes: 1,110
From: Dyer, IN
Default

Originally Posted by Cratecruncher
LUCKY131969,

Hmm, you could start with damaging the rack trying to get "passed" it. Then there is the timing cover that it's currently making metal to metal contact with.

The reason I posted the comment was to warn the OP that more damage could result if he starts that engine again. (He likely knew that anyway.) Sorry if my first post seemed too alarmist to you LUCKY. I've revised it.
I did not take your post as "alarmist" at all......I was hoping you could provide info a balancer flying off....I was looking forward to reading about it.
Reply
Old Dec 12, 2010 | 03:30 PM
  #11  
tpovette's Avatar
tpovette
Thread Starter
5th Gear
 
Joined: Dec 2010
Posts: 5
Likes: 0
From: Houston TX
Default

Hoping for an easier fix, didn't want to pull the steering but looks like I will have to. I don't have an impact driver strong enough to work but thanks.
Reply
Old Dec 12, 2010 | 03:33 PM
  #12  
tpovette's Avatar
tpovette
Thread Starter
5th Gear
 
Joined: Dec 2010
Posts: 5
Likes: 0
From: Houston TX
Default

[QUOTE=MawneeC5;1576193766]There are flywheel locking tools that are probably your best option. There are two versions. One that goes in place of your starter. And one that bolts to the front of your crank pulley and wedges against the frame.

Some just stick a long bolt or punch through a flywheel hole into the block. But there have been reports of damaged/bent flywheels from this method.[/

The starter lock sounds like the best method. Who makes them and where are they sold?
Reply
Old Dec 12, 2010 | 03:39 PM
  #13  
jirasvet's Avatar
jirasvet
Burning Brakes
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jul 2007
Posts: 881
Likes: 2
From: hill billy hell
Default

Originally Posted by tpovette
The starter lock sounds like the best method. Who makes them and where are they sold?
Here is a place where I got my tools.

http://www.etoolcart.com/flywheelhol...j-42386-a.aspx

makes the job easieer
Reply
Old Dec 12, 2010 | 06:12 PM
  #14  
ipuig's Avatar
ipuig
Drifting
15 Year Member
All Eyes On Me
Top Answer: 1
 
Joined: Jan 2008
Posts: 1,722
Likes: 138
From: Florida
St. Jude Donor '09
Default

Originally Posted by tpovette
Any suggestions on how to lock up the engine in order to pull the 250 lb torqued bolt? I have an automatic trans
The procedure is in the "service manual". If you do not have one, I suggest you either purchase one or get an ALL DATA DIY account.
Reply

Get notified of new replies

To Problem with crank pully





All times are GMT -4. The time now is 11:35 AM.

story-0
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-1
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-2
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-3
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
story-4
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-5
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-6
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-7
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-8
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-9
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE