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

when shoebox says exhaust lifter for a cylinder starts to move up?

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Old Jan 29, 2005 | 10:56 AM
  #16  
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Re: when shoebox says exhaust lifter for a cylinder starts to move up?

Originally Posted by shoebox
Maybe it could use a little tweak (and I will go over it), but you purposely did not highlight the portion in between what you highlighted that says "then adjust the intake valve. That is the "intake what". That's not the writer's fault.

Movement begins at the lifter and is transferred to the valve via the rocker arm. If someone was starting out with all the rockers loose, none of the valves would move as the cam was rotated. That is why the lifter movement is referred to first, and then the valve.

I try to be clear as I can, it is not always going to be as simple as a "Dummies" book. Anyone that is adjusting their valve should have a little idea of what they are doing.

I often take suggestions from people when something is hard to understand, yet this has been read by hundreds or maybe thousands of times by people and only 2 have seen fit to complain about it.

I don't get paid for writing this stuff, you know. If the article misleads people, it can be removed in a few seconds.
It's good of you to take the criticism well. Why do we need to pick it apart? It doesn't need to be picked apart. But I did.
I picked at the wording to defend the questioner in the initial post against those who told him to just have a tech do the job and to show why he would have trouble with the wording.

Even now you pointed out that after speaking of lifter you direct the reader to the intake valve to be set for lash and then continue:
Turn the engine over again until the intake opens completely and then is almost all the way back down . Now, set the exhaust valve to zero lash and add your preload. (you don't say intake lifter or intake valve which is fine and exactly correct because now your intake valve and lifter would move since you just adjusted after watching exhaust movement. not intuitive at that point for some people).

Again I'm not picking on you and the wording as much as pointing out to those that bashed the question asker. There are always question by readers in tech writing. Tech writers can always tweak their wording. I did not think you would be offended since you are the helpful type or why else would you post the tech article and take the time?

Karl Ellwein
Old Jan 29, 2005 | 12:11 PM
  #17  
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Re: when shoebox says exhaust lifter for a cylinder starts to move up?

Well, I made some changes and added a visual reference, but I'm sure that won't satisfy all. I revisit and change my own wording from time to time, because as you say, you most always can see something that needs refinement.
Old Jan 29, 2005 | 05:32 PM
  #18  
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Re: when shoebox says exhaust lifter for a cylinder starts to move up?

Ok well I got it figured out, I think it was the switching from lifter up to intake down meaning spring down or valve down. I think this is a lil easier to understand, turn engine over until exhaust valve begins to open, adjust intake valve, turn engine until intake valve opens and is almost closed, adjust exhaust valve. I also used the up-down method this time, I think its a bit easier than spinning the pushrod because its hard to tell when its just dragging a bit. Thanks guys for the help, I didnt mean to be a dick to the guy that posted, but he pissed me off making it sound like I should just not be working on my car. But anyways, I got them adjusted now.

Last edited by 97s10ondubs; Jan 29, 2005 at 05:40 PM.
Old Jan 29, 2005 | 05:35 PM
  #19  
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Re: when shoebox says exhaust lifter for a cylinder starts to move up?

Turn the engine over again until the intake valve on the same cylinder opens completely and then is almost all the way back down. I just went to read the changes you made and this is what caught me, when the valve opens it is in the down position, maybe it should say until it is almost all the way back up.

Last edited by 97s10ondubs; Jan 29, 2005 at 05:38 PM.
Old Jan 29, 2005 | 06:14 PM
  #20  
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Re: when shoebox says exhaust lifter for a cylinder starts to move up?

you could always adjust the zero lash with the car running, i think thats easier, and no oil got on my headers, or anything else for that matter. Of course if your engine is to loud than it won't be easy to hear.
Old Jan 29, 2005 | 06:37 PM
  #21  
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Re: when shoebox says exhaust lifter for a cylinder starts to move up?

^yea but i had one rocker that was shooting oil like 10 feet outside of the side of the car, so i had to do it with it off, and with my car being so loud i actually like the off method better because all of them will be adjusted almost exactly the same
Old Jan 29, 2005 | 06:38 PM
  #22  
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Re: when shoebox says exhaust lifter for a cylinder starts to move up?

Originally Posted by 97s10ondubs
Turn the engine over again until the intake valve on the same cylinder opens completely and then is almost all the way back down. I just went to read the changes you made and this is what caught me, when the valve opens it is in the down position, maybe it should say until it is almost all the way back up.
Lol, no one even said anything about that and I did not change it. I'll fix it. Apparently, not many people read this far or just ignore it.
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