LS1 Based Engine Tech LS1 / LS6 / LS2 / LS3 / LS7 Engine Tech

Wanna maybe save $80? LS1 idler pulleys.

Old 02-13-2010, 04:10 PM
Registered User
Join Date: Mar 2007
Posts: 1,172
I've done some looking into this as I just got my first LS1 car, and it had the same cooked grease issues.

The real crux of the matter is the bearings are rated for 12,000rpm, but with the pulley sizes the A/C idlers are at that speed when the engine is at 4,000rpm and the main idler is maxed at 4800rpm. No wonder these cook their grease in a hurry when you are having fun.

I'm am currently working with Shon Herron to come up with something to solve this problem once and for all though.
mdenz3 is offline  
Old 05-18-2010, 02:12 PM
Registered User
Join Date: Jun 2006
Posts: 4
Are any of the bolts reverse thread?
DSkyles is offline  
Old 11-26-2010, 10:54 AM
Registered User
Join Date: Nov 2010
Posts: 10
Re: Wanna maybe save $80? LS1 idler pulleys.

to reply to pulley rehab use spray on brake clean and spray into the bearing @ a45degree angle so the propellant spins the bearing fast clean up then re pack and be on your way this is my first post ever on a computer so ive entered the 21st century ! hope this is of use to someone long live the Z28!!!!
oldmano2z is offline  
Old 04-05-2011, 09:11 PM
Registered User
rv93's Avatar
Join Date: Oct 2010
Location: West Lafayette, IN
Posts: 563
Re: Wanna maybe save $80? LS1 idler pulleys.

just my two cents, you can use a knife to pry off the seal. Worked great for me, and i think its easier than a screwdriver.
rv93 is offline  
Old 10-22-2012, 06:48 PM
Registered User
Thread Starter
Join Date: Jun 2001
Location: TX
Posts: 1,215
Re: Wanna maybe save $80? LS1 idler pulleys.

Did this on my 3rd LS1. Updated 1st post with more pics and info.
angel71rs is offline  
Related Topics
Thread Starter
Last Post
General 1967-2002 F-Body Tech
08-17-2015 05:15 PM
LS1 Based Engine Tech
08-07-2015 03:16 PM
LT1 Based Engine Tech
07-20-2015 09:52 AM
General 1967-2002 F-Body Tech
07-17-2015 11:55 AM
Cars For Sale
07-08-2015 09:11 PM

Thread Tools
Search this Thread
Quick Reply: Wanna maybe save $80? LS1 idler pulleys.

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.