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

Installed Summit underdrive pulley!

Thread Tools
 
Search this Thread
 
Old Dec 5, 2008 | 08:13 PM
  #1  
lunatik's Avatar
Thread Starter
Launching!
 
Joined: May 2006
Posts: 244
Likes: 0
From: Madisonville, Ky
Thumbs up Installed Summit underdrive pulley!

I installed the UDP this weekend and it was a fight. First the removal tool I rented snapped a hook off. Reconfigured it to use the other hooks and broke the stock pulley-twice. The Summit piece failed to slide in after two boiling water stunts. I didnt have an install tool so I spent the best chunk of Saturday looking for a hardware store that carries the m16 x 2.0 x xxxmm threaded rod. I found this place called A.M.S. They had it all. Any of you locals want to know where it is just p.m me. I bought three feet of rod, three nuts, 6 small washers, and 20 2''o.d x 3/4''i.d washers. I used a pipe wrench to torque the nut down on install. I didnt have a 15/16 wrench. You should have seen the breaker bar i used to break the original torque and torque the new bolt down with. I bet the SOB was three feet long! After installing the pulley i finished up using Gatorback belts and now my sqeeks are gone! The only charging issues i have are sitting at idle and using the heater. the gauge barely dips into the red. i'll get that over drive pulley for the alt later. Im very happy with the performance. Top end charge has a little more umph now.
Attached Thumbnails Installed Summit underdrive pulley!-000_1353.jpg  
Reply
Old Dec 5, 2008 | 08:15 PM
  #2  
01ssreda4's Avatar
TECH Senior Member
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (96)
 
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
Default

im putting my powerbond on tomorrow. i got the install tool though.
Reply
Old Dec 5, 2008 | 08:54 PM
  #3  
jsteele90's Avatar
11 Second Club
iTrader: (13)
 
Joined: Mar 2007
Posts: 2,870
Likes: 2
From: delaware
Default

best removal tool for the original bolt is a impact wrench. **** that breaker bar ****
Reply
Old Dec 5, 2008 | 09:13 PM
  #4  
sublime1996525's Avatar
Staging Lane
iTrader: (2)
 
Joined: Nov 2006
Posts: 88
Likes: 3
From: Salt Lake City, UT
Default

Originally Posted by 01ssreda4
im putting my powerbond on tomorrow. i got the install tool though.
Did you have to get a smaller a/c belt too?
Reply
Old Dec 5, 2008 | 10:29 PM
  #5  
01ssreda4's Avatar
TECH Senior Member
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (96)
 
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
Default

bought it off a guy on here and he gave me the two belts, but haven't held them side by side with the factory length belts. being that the whole pulley is smaller i would assume yes the ac belt is smaller also.
Reply
Old Dec 5, 2008 | 11:01 PM
  #6  
lunatik's Avatar
Thread Starter
Launching!
 
Joined: May 2006
Posts: 244
Likes: 0
From: Madisonville, Ky
Default

Originally Posted by jsteele90
best removal tool for the original bolt is a impact wrench. **** that breaker bar ****
Agreed, didnt have that either. Or a compressor. You should have seen it. I was leg pressing against the garage wall. Glad it didnt snap.
Oh well, job got done and Im a little bit faster now.
Reply
Old Dec 6, 2008 | 06:46 PM
  #7  
sublime1996525's Avatar
Staging Lane
iTrader: (2)
 
Joined: Nov 2006
Posts: 88
Likes: 3
From: Salt Lake City, UT
Default

Originally Posted by 01ssreda4
bought it off a guy on here and he gave me the two belts, but haven't held them side by side with the factory length belts. being that the whole pulley is smaller i would assume yes the ac belt is smaller also.
Yeah that's what I figured. I don't know why I didn't think of the a/c belt when I bought the pulley. Oh well that'll come later I guess.
Reply
Old Dec 6, 2008 | 07:54 PM
  #8  
jsteele90's Avatar
11 Second Club
iTrader: (13)
 
Joined: Mar 2007
Posts: 2,870
Likes: 2
From: delaware
Default

ive heard of some people bumping the starter with the breaker bar on the bolt to break it loose. kinda ballsy but ive heard it works like a charm
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 Dec 7, 2008 | 10:18 AM
  #9  
b0pric01's Avatar
12 Second Club
iTrader: (5)
 
Joined: Nov 2007
Posts: 218
Likes: 0
From: Eastern NC
Default

yup, if the motors in the car you just make sure there's no spark to the engine and crank it just barely with he key. Make sure your strong arm is wedged against the frame or something that will not break. If a breaker bar or an impact doesn't work, that should do it.
Reply
Old Dec 8, 2008 | 09:13 PM
  #10  
s346k's Avatar
TECH Junkie
iTrader: (4)
 
Joined: May 2005
Posts: 3,433
Likes: 1
From: johnson co.
Default

Originally Posted by jsteele90
ive heard of some people bumping the starter with the breaker bar on the bolt to break it loose. kinda ballsy but ive heard it works like a charm
i used that method and it worked like a charm haha. i wouldn't do it any other way again. install with the help of an oven - done.
Reply




All times are GMT -5. The time now is 09:58 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