[Z06] LS7 Heads Exhaust Guide Wear Video
07-10-2012, 08:06 PM
#3
Safety Car
Tanner,
Thanks for taking the time to post this video!
FSTFRC
Thanks for taking the time to post this video!
FSTFRC
07-10-2012, 08:28 PM
#6
Race Director
Thanks for putting this out there for us. I'll be looking forward to seeing whatever else you find in the way of measurements. By the way, I'm pretty sure this thread will be huge in terms of views and responses. 
07-10-2012, 08:33 PM
#7
Safety Car
So a head with "normal" wear will result in NO side-to-side play when extended out over an inch from the seat?
It would be nice to correlate the movement you suggest as wear in your video with actual measurements of the stem (and conversely the ID of the guide).
It would be nice to correlate the movement you suggest as wear in your video with actual measurements of the stem (and conversely the ID of the guide).
Last edited by Random84; 07-10-2012 at 08:36 PM.
07-10-2012, 08:35 PM
#8
Drifting
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Yeah about an inch ..remember the valve stem is all the way in the guide...if not then you would never be able to put springs on..the valves are longer than the guides
07-10-2012, 08:37 PM
#9
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Last edited by z0sicktanner; 07-10-2012 at 08:45 PM.
07-10-2012, 08:39 PM
#10
Drifting
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if it moves to the point you can see it on video it's toast..
07-10-2012, 08:44 PM
#11
Advanced
Great video.
My '07 Z is in the dealer now to replace 2 intake valves and rocker arms under warranty after 17000 stock miles. While they have the heads off, would it be a reasonable request to check the guide wear, and if there is a lot of play, would something like this be covered under warranty as well? Or would it be considered normal wear and tear? What's the fix for this short of new heads?
My '07 Z is in the dealer now to replace 2 intake valves and rocker arms under warranty after 17000 stock miles. While they have the heads off, would it be a reasonable request to check the guide wear, and if there is a lot of play, would something like this be covered under warranty as well? Or would it be considered normal wear and tear? What's the fix for this short of new heads?
07-10-2012, 08:47 PM
#14
Racer
While they have the heads off I would def. have them check the guides. Even if you have to pay out of pocket for new guides, they are cheap.
Great video.
My '07 Z is in the dealer now to replace 2 intake valves and rocker arms under warranty after 17000 stock miles. While they have the heads off, would it be a reasonable request to check the guide wear, and if there is a lot of play, would something like this be covered under warranty as well? Or would it be considered normal wear and tear? What's the fix for this short of new heads?
My '07 Z is in the dealer now to replace 2 intake valves and rocker arms under warranty after 17000 stock miles. While they have the heads off, would it be a reasonable request to check the guide wear, and if there is a lot of play, would something like this be covered under warranty as well? Or would it be considered normal wear and tear? What's the fix for this short of new heads?
07-10-2012, 08:54 PM
#15
Burning Brakes
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Great video. When my heads were pulled I could wiggle mine with my fingers too. I found out some interesting facts regarding this issue yesterday from a very reliable source. When I get to my laptop I will post it up.
07-10-2012, 08:56 PM
#16
The Consigliere
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Please post the guide measurements. Would be interesting correlate what the video shows on movement to what the measurements are.
Thanks for taking the time to do this.
Thanks for taking the time to do this.
07-10-2012, 08:59 PM
#17
Drifting
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guys if you pull your heads replace with bronze valve guides and ss valves...thats my take...many ppl will tell you this or that...i'll post every one on video...from now on...if I can save one of your motors I will sleep at night...again I love my z06..nothing comes close for the money but there is an issue...I will post more videos soon I just got the heads at 2pm..broke them down to show you guys..
07-10-2012, 09:02 PM
#18
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07-10-2012, 09:11 PM
#20
Race Director
Great video.
My '07 Z is in the dealer now to replace 2 intake valves and rocker arms under warranty after 17000 stock miles. While they have the heads off, would it be a reasonable request to check the guide wear, and if there is a lot of play, would something like this be covered under warranty as well? Or would it be considered normal wear and tear? What's the fix for this short of new heads?
My '07 Z is in the dealer now to replace 2 intake valves and rocker arms under warranty after 17000 stock miles. While they have the heads off, would it be a reasonable request to check the guide wear, and if there is a lot of play, would something like this be covered under warranty as well? Or would it be considered normal wear and tear? What's the fix for this short of new heads?