What is it with these F*KNG valve covers and fill tubes!!??

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07Burb

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iamdub

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At this point, I'm kinda lost in this thread. Your stock filler neck should lock fully and firmly to your stock valve cover. Maybe something was replaced along those 300K+ miles? The filler on my bro's '05 was crooked and slightly leaking. When I had the cover off, I just removed the filler neck then pushed it back in straight so that it bottomed out on the flange, then turned it to lock into place. I'm thinking it was turned and popped loose at some point in its history and just wasn't reinstalled properly. Maybe with the way the threads of the caps and necks are designed, they can twist into position with the tab that's cast in the cover either over or under the thread. In short, maybe you weren't pushing down/in hard enough? Try removing the O-ring to test it with no interference to see if you can get the neck to sit how it should. The cap pulls itself down tight as you turn it, the neck needs to be pushed down tight then turned.
 

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At this point, I'm kinda lost in this thread. Your stock filler neck should lock fully and firmly to your stock valve cover. Maybe something was replaced along those 300K+ miles? The filler on my bro's '05 was crooked and slightly leaking. When I had the cover off, I just removed the filler neck then pushed it back in straight so that it bottomed out on the flange, then turned it to lock into place. I'm thinking it was turned and popped loose at some point in its history and just wasn't reinstalled properly. Maybe with the way the threads of the caps and necks are designed, they can twist into position with the tab that's cast in the cover either over or under the thread. In short, maybe you weren't pushing down/in hard enough? Try removing the O-ring to test it with no interference to see if you can get the neck to sit how it should. The cap pulls itself down tight as you turn it, the neck needs to be pushed down tight then turned.
Look at post #53.
 

iamdub

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Look at post #53.

Ah. So, he has a neck for a different cover and needs either a different neck or a different cover? But, why wasn't his original neck and cover not playing well together- Broken? Had been popped out and not properly re-seated? Had been replaced but with the wrong neck?
 

iamdub

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Just stay clear of those knock sensors on the top of the engine under the intake manifold.
They LOVE to accumulate water and corrode.

No knock sensors up there on a Gen4 engine. They're bolted to the sides of the block, just above the oil pan flange, completely exposed to the elements with no worries. :thumbsup:
 

Rocket Man

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Ah. So, he has a neck for a different cover and needs either a different neck or a different cover? But, why wasn't his original neck and cover not playing well together- Broken? Had been popped out and not properly re-seated? Had been replaced but with the wrong neck?
:shrug:
 
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89Suburban

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Ah. So, he has a neck for a different cover and needs either a different neck or a different cover? But, why wasn't his original neck and cover not playing well together- Broken? Had been popped out and not properly re-seated? Had been replaced but with the wrong neck?

These are the million dollar questions I don't have the answers to, hence this thread. And the parts lookup sites don't mention any of this crap which is frustrating. As far as how I am installing it and it is the proper way or not, these are basic, uncomplicated parts with simple mating designs. I don't see any error on my part on installation procedure. All I do know is the screw cap fits on there perfectly and nice and snug and I can sleep now knowing the cover is now properly sealed from leaks and/or dirt infiltration.


Just stay clear of those knock sensors on the top of the engine under the intake manifold.
They LOVE to accumulate water and corrode.


I read about that but fortunately I do not have those on mine. I think is is on earlier years.
 

07Burb

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These are the million dollar questions I don't have the answers to, hence this thread. And the parts lookup sites don't mention any of this crap which is frustrating. As far as how I am installing it and it is the proper way or not, these are basic, uncomplicated parts with simple mating designs. I don't see any error on my part on installation procedure. All I do know is the screw cap fits on there perfectly and nice and snug and I can sleep now knowing the cover is now properly sealed from leaks and/or dirt infiltration.





I read about that but fortunately I do not have those on mine. I think is is on earlier years.
You’re doing good! Keep at it :Handshake:
 

wsteele

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So, I am guessing it doesn't lock in place... ;)

Good job.

BTW, all the 49F weather came and went. We got about a foot of snow in the last 36 hours. Got the cornices all knocked off the roof and the walks and driveway clear this afternoon, wife says we have another 6" of snow coming around midnight. Winter did finally make it. :)
 

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