LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

changing my opti

Thread Tools
 
Search this Thread
 
Old 01-21-2010, 08:24 AM
  #16  
Registered User
 
96LT1TX's Avatar
 
Join Date: Jul 2003
Location: Houston, TX
Posts: 1,035
It has been 2 years since I did it last, but if you take off the water pump cant you just pull the opti out and up without taking the pulley off too?

Not that it matters much...

I will be doing this though in a few weeks.
96LT1TX is offline  
Old 01-22-2010, 12:17 AM
  #17  
Registered User
 
RKPsk8er's Avatar
 
Join Date: Aug 2006
Location: Fayetteville, GA
Posts: 649
Originally Posted by Drew24
yeah your going to have to pull the harmonic balancer pulley off but it is really easy just go to an autozone and rent a harmonic balancer puller. You pay like 20 bucks and when you return it they give the 20 bucks back. The thing that helped me when pulling it i didn't use the bolts that the pulley puller came with i used the bolts that hold the balancer on. Good luck and bring lots of beer
i tried this today but the stock bolts wouldn't fit the assembly so i had to drill it out slightly and I still haven't been able to get the stupid thing off. any tips?
RKPsk8er is offline  
Old 01-22-2010, 01:57 AM
  #18  
Registered User
 
RamAir95TA's Avatar
 
Join Date: Sep 2001
Location: Woodstown, NJ
Posts: 4,154
Originally Posted by 96LT1TX
It has been 2 years since I did it last, but if you take off the water pump cant you just pull the opti out and up without taking the pulley off too?

Not that it matters much...

I will be doing this though in a few weeks.
The pulley needs to come off as the opti needs to be pulled away from the timing cover. The pulley is blocking it.

Originally Posted by RKPsk8er
i tried this today but the stock bolts wouldn't fit the assembly so i had to drill it out slightly and I still haven't been able to get the stupid thing off. any tips?
Sounds like you have the wrong puller (it can be used but it's easier to use a 3-jaw puller).

RamAir95TA is offline  
Old 01-22-2010, 02:35 AM
  #19  
Registered User
 
RKPsk8er's Avatar
 
Join Date: Aug 2006
Location: Fayetteville, GA
Posts: 649
Originally Posted by RamAir95TA
The pulley needs to come off as the opti needs to be pulled away from the timing cover. The pulley is blocking it.



Sounds like you have the wrong puller (it can be used but it's easier to use a 3-jaw puller).
Any ideas on how to make this one work as I can't return it now that its been modified? I got some longer bolts from lowes today that may work. also, i've read of a center, hub bolt that I was apparently unaware of. I think if I take it off, this puller may work.
RKPsk8er is offline  
Old 01-22-2010, 05:23 AM
  #20  
Administrator
 
Injuneer's Avatar
 
Join Date: Nov 1998
Location: Hell was full so they sent me to NJ
Posts: 70,669
If you are taking the center bolt out of the hub, you are trying to pull the hub off. YOU DO NOT HAVE TO PULL THE HUB OFF THE CRANK TO CHANGE THE OPTI. You only need to pull the pulley/damper off the hub. Sounds like you are screwing the puller bolts into the threads on the hub arms, and pulling on it - WRONG WAY.

Courtesy of Shoebox:

http://shbox.com/1/pull_pulley.jpg
Injuneer is offline  
Old 01-22-2010, 09:15 PM
  #21  
Registered User
 
RKPsk8er's Avatar
 
Join Date: Aug 2006
Location: Fayetteville, GA
Posts: 649
Originally Posted by Injuneer
If you are taking the center bolt out of the hub, you are trying to pull the hub off. YOU DO NOT HAVE TO PULL THE HUB OFF THE CRANK TO CHANGE THE OPTI. You only need to pull the pulley/damper off the hub. Sounds like you are screwing the puller bolts into the threads on the hub arms, and pulling on it - WRONG WAY.

Courtesy of Shoebox:

http://shbox.com/1/pull_pulley.jpg
yes i realized i was accomplishing nothing and got the correct 3 claw puller. im all done with the opti replacement but i dont remember the orientation of the pulley to the hub and it has two weights on it and im not sure which way to put it. I noticed the hub has a nub on one side and the pulley has an arrow. anyone know if these are supposed to line up or am I screwed?
RKPsk8er is offline  
Old 01-22-2010, 11:10 PM
  #22  
Administrator
 
Injuneer's Avatar
 
Join Date: Nov 1998
Location: Hell was full so they sent me to NJ
Posts: 70,669
The hub has three arms. They are not evenly spaced. The pulley will only bolt to it in one position.
Injuneer is offline  
Old 01-22-2010, 11:54 PM
  #23  
Registered User
 
RKPsk8er's Avatar
 
Join Date: Aug 2006
Location: Fayetteville, GA
Posts: 649
Originally Posted by Injuneer
The hub has three arms. They are not evenly spaced. The pulley will only bolt to it in one position.
I appreciate your knowledge. I actually measured the distance and realized it. Opti is on and running strong so fingers crossed.
RKPsk8er is offline  
Old 03-13-2011, 10:09 PM
  #24  
Registered User
 
formula90's Avatar
 
Join Date: Oct 2000
Location: League City, Texas
Posts: 62
Re: changing my opti

Your the man Fred.. nuff said...
formula90 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Sergio
LT1 Based Engine Tech
11
01-27-2016 04:27 PM
grabbem88
LT1 Based Engine Tech
23
03-18-2015 01:25 PM
IgorT.455/406
LT1 Based Engine Tech
4
03-12-2015 03:39 AM
grgguy
Computer Diagnostics and Tuning
17
02-23-2015 07:57 PM
94Z28LS1toLT1
LT1 Based Engine Tech
32
01-10-2015 10:27 AM



Quick Reply: changing my opti



All times are GMT -5. The time now is 07:49 PM.