General Maintenance & Repairs Leaks | Squeaks | Clunks | Rattles | Grinds
Sponsored by:
Sponsored by: CARiD

problems replacing A/C drive idler pulley

Thread Tools
 
Search this Thread
 
Old Jan 28, 2013 | 08:53 PM
  #1  
02Z28LS1's Avatar
Thread Starter
TECH Addict
iTrader: (2)
 
Joined: Jun 2004
Posts: 2,327
Likes: 2
From: Texas
Default problems replacing A/C drive idler pulley

i need some help here....i have a squeaky idler pulley on the A/C drive and have the replacement, but i can't get the old one to break loose. it's the one with the Torx bolt on it.

i've doused the bolt/pulley with WD40 & let it soak for a while, but the "teeth" on the bolt seem to be twisted going in the direction of loosening the bolt. when i turn it the other way like i'm trying to tighten it, the teeth grab just fine, and i hear/feel a "click" like the way a torque wrench feels/sounds when it reaches the torque level you set it to, then it "clicks" back again when i release pressure.

but when i try to loosen it, the Torx bit just slides out of the bolt and won't grab enough to actually break it loose.

i kinda want to beat the **** out of whoever designed this thing & didn't leave enough clearance for a regular hex-head bolt to go...or at the very least, use a standard inverted hex bolt instead of Torx. Torx should ******* be illegal to use on a car.

anyway, anyone got any ideas on how i can get this goddamn thing to break loose? i spent an hour or so trying to get the damn thing loose and never could, when from start to finish, this should be a 20-min job......
Reply
Old Jan 28, 2013 | 09:13 PM
  #2  
LS6427's Avatar
Banned
iTrader: (2)
 
Joined: May 2008
Posts: 11,289
Likes: 13
From: South Florida
Default

Well, when you do get it out....I suggest going to the dealership and buying the tap and bolt kit for it. The aluminum threads in the block are probably stripped a little too.

It happened to mine when that pulley wouldn't tighten and I kept throwing the a/c belt. I pulled it into the dealership and the a/c guy put it in the air and had it all done in like 10 minutes....they didn't even charge me.

But it's good insurance. It takes a steel sleeve and comes with a new bolt.

.
Reply
Old Jan 28, 2013 | 10:34 PM
  #3  
joecar's Avatar
TECH Senior Member
20 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Apr 2002
Posts: 6,080
Likes: 17
From: So.Cal.
Default

Using a hammer and drift, give the bolt head a medium sharp hit straight on.

Then hammer the torx bit into the bolt head, and then try to break it loose using the longest breaker bar while pushing torx bit into the bolt head with all your weight.
Reply
Old Jan 29, 2013 | 12:51 PM
  #4  
02Z28LS1's Avatar
Thread Starter
TECH Addict
iTrader: (2)
 
Joined: Jun 2004
Posts: 2,327
Likes: 2
From: Texas
Default

Originally Posted by joecar
Using a hammer and drift, give the bolt head a medium sharp hit straight on.

Then hammer the torx bit into the bolt head, and then try to break it loose using the longest breaker bar while pushing torx bit into the bolt head with all your weight.
using what clearance room? there's an A/C hose & the radiator fan assembly in the way of it, and i'd rather not have to remove the entire front end of the car to get this one stupid POS bolt out.

and it's not like i would even need to hammer the Torx bit into it, the bit goes all the way to the bottom of the bolt's head, it just gets pushed back out due to the bolt's teeth being twisted in that direction....so if the bolt was vertical instead of horizontal, and i could put my entire weight onto it to keep it from "unthreading" itself, it could possibly come loose....but the way it is now, i can't get enough leverage to keep the bit pushed into the bolt's head to get it to break loose.
Reply
Old Jan 29, 2013 | 06:02 PM
  #5  
joecar's Avatar
TECH Senior Member
20 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Apr 2002
Posts: 6,080
Likes: 17
From: So.Cal.
Default

The fan/shroud assembly slips off giving you lots of room.

The idea of hammering the torx bit on is to get past the twisted teeth on the bolt head.

I've removed several like this (torx bit slips off making the teeth more twisted), keep at it you'll get it.
Reply
Old Jan 29, 2013 | 07:43 PM
  #6  
sjsingle1's Avatar
TECH Senior Member
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (1)
 
Joined: Feb 2010
Posts: 6,758
Likes: 292
From: Fort Worth TX
Default

i used a LONG 1/2 inch breaker bar on mine.........when reinstalling USE anti seize
Reply
Old Jan 29, 2013 | 07:53 PM
  #7  
wssix99's Avatar
Save the manuals!
15 Year Member
iTrader: (5)
 
Joined: Dec 2007
Posts: 12,967
Likes: 389
From: Chicago, IL
Default

Originally Posted by sjsingle1
i used a LONG 1/2 inch breaker bar on mine.........when reinstalling USE anti seize
+1^ Me too. Just replaced mine with a torx socket head and a breaker bar. It took a little umph, but the breaker bar took care of it - no problem.

I recall the torque spec being pretty high on those bolts.
Reply
Old Jan 30, 2013 | 12:21 PM
  #8  
beyonddisturbed's Avatar
TECH Resident
iTrader: (5)
 
Joined: Dec 2009
Posts: 832
Likes: 1
From: Midwest
Default

I think the previous owner stripped mine. I had to take the whole ac compressor bracket off and drill that **** out. But I got the aluminum pulley w/ metal sleeve and new bolt. Definitely x2 on the anti seize
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 Sep 19, 2014 | 03:38 PM
  #9  
Don Ray Mills's Avatar
Registered User
 
Joined: Sep 2014
Posts: 1
Likes: 0
Default old post

Originally Posted by 02Z28LS1
i need some help here....i have a squeaky idler pulley on the A/C drive and have the replacement, but i can't get the old one to break loose. it's the one with the Torx bolt on it.

i've doused the bolt/pulley with WD40 & let it soak for a while, but the "teeth" on the bolt seem to be twisted going in the direction of loosening the bolt. when i turn it the other way like i'm trying to tighten it, the teeth grab just fine, and i hear/feel a "click" like the way a torque wrench feels/sounds when it reaches the torque level you set it to, then it "clicks" back again when i release pressure.

but when i try to loosen it, the Torx bit just slides out of the bolt and won't grab enough to actually break it loose.

i kinda want to beat the **** out of whoever designed this thing & didn't leave enough clearance for a regular hex-head bolt to go...or at the very least, use a standard inverted hex bolt instead of Torx. Torx should ******* be illegal to use on a car.

anyway, anyone got any ideas on how i can get this goddamn thing to break loose? i spent an hour or so trying to get the damn thing loose and never could, when from start to finish, this should be a 20-min job......
I know this is an old post but how did u fix this I'm having the same problem torox won't hold straight
Reply




All times are GMT -5. The time now is 07:35 PM.

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