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

First Time Valve Adjustment Help!

Old Apr 11, 2012 | 04:41 PM
  #1  
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First Time Valve Adjustment Help!

Well when i picked up my car from a guy he told me the ticking in the engine just needed a valve adjustment. The bad news is that its on the passenger side which I know you need to remove more parts from the top of the valve cover to get to the valves. Does anyone know of a walkthrough/tool list I'll need to get into this for the first time? I have a basic idea: remove cover, loosen rocker arm bolt, fit that measuring device in the gap, then from there it gets fuzzy. Any help please??
Old Apr 11, 2012 | 04:44 PM
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Re: First Time Valve Adjustment Help!

tried putting this is my sign but for some reason it wont let me:
95' Camaro Z28 5.7L V8

Last edited by Injuneer; Apr 11, 2012 at 05:07 PM.
Old Apr 11, 2012 | 04:51 PM
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No feeler gauge needed, loosen rocker nut till it clatters, slowly tighten till it stops, and go an additional 1/2 turn

Sent from my PC36100 using Tapatalk 2
Old Apr 11, 2012 | 04:55 PM
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Re: First Time Valve Adjustment Help!

with the engine running right? loosing the bolt won't ruin anything? and when you say half turn you mean from 12 o'clock to 6 o'clock?
Old Apr 11, 2012 | 04:58 PM
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Re: First Time Valve Adjustment Help!

i am just going to pick up a haynes manual. i am confused on which one to start with and i really dont want to dive in without some instructions.
Old Apr 11, 2012 | 05:04 PM
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Re: First Time Valve Adjustment Help!

Read this:

4th Gen LT1 F-body Tech Articles

PS: I added the signature for you. What problem did you have posting it? You should add the trans type, and any major modifications.

Last edited by Injuneer; Apr 11, 2012 at 05:08 PM.
Old Apr 11, 2012 | 05:12 PM
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Re: First Time Valve Adjustment Help!

that^ it was i was looking for! thank you
edit: i think it wouldnt let me because i am on a public computer. it said proxy could not handle my request?

Last edited by ShootsGoodman; Apr 11, 2012 at 06:07 PM.
Old Apr 11, 2012 | 06:11 PM
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Re: First Time Valve Adjustment Help!

one more question: i am going to try the engine running method, is there an order of which rockers to loosen first?
(automatic transmission)
Old Apr 11, 2012 | 06:28 PM
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Re: First Time Valve Adjustment Help!

I dont think it matters what rocker you start with if the engine is running.

I have a gm service manual that explains the non running way. and its identical to the description above.

the running version is listed in that article aswell. loosen, tighten with no downward pressure, til noise is gone + 1/4 turn
Old Apr 11, 2012 | 07:34 PM
  #10  
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Re: First Time Valve Adjustment Help!

well it seems easy enough. im gonna give it a whirl. thanks people.
Old Feb 12, 2014 | 04:17 PM
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Re: First Time Valve Adjustment Help!

Stupid question.
I am think i have a rocker that need adjusting on the passanger side. I am planning to do it this weekend. I have read the shbox guide to doing the adjustment. But i am confused. To get to the passangers side, i have to pull the alternator correct? if so how do i do the adjustment with the engine running with no alternator?
Old Feb 13, 2014 | 04:56 AM
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Re: First Time Valve Adjustment Help!

You can still pull the valve cover with the alternator on. It is just a pain.
Old Feb 13, 2014 | 11:47 PM
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Re: First Time Valve Adjustment Help!

A hydraulic lifter shouldn't need adjustment for the life of the motor...so if you have a clacking noise you should first confirm that it's not an exhaust leak.

If it's definitely a valve noise then clearance has been created due to worn parts, or an improperly functioning lifter which is either bleeding off pressure too quickly, or is stuck.

Loosening the rocker and re-tightening does sometimes fix the noise, but you need to keep your eyes open for other problems under the valve cover which could be causing the noise. If you see that there's sticky oil varnish built up on the bottom of the fill cap due to low quality oil or poor maintenance, then running some marvel mystery oil or atf (research how to do this properly) through the motor to clean the lifters internally may be a solution.
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