mikeyss
Full Access Member
What's the problem?
Headers on a 6.2L with Stock Muffler/Cat-Back?
- Thread starter 91RS
- Start date
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kbuskill
***CAUTION*** I do my own stunts!
Yours is definitely less pronounced than the guy's in the second video.
I listened to yours first and couldn't hear any problem and then I listened to the second video and heard his plain as day.
I went back and listened to yours then and could faintly here it.
It's definitely strange. Never heard that before.
Maybe it's a slight leak somewhere causing it, almost like a whistle?
I listened to yours first and couldn't hear any problem and then I listened to the second video and heard his plain as day.
I went back and listened to yours then and could faintly here it.
It's definitely strange. Never heard that before.
Maybe it's a slight leak somewhere causing it, almost like a whistle?
I appreciate you taking the time to listen.
I checked for leaks by hooking a shop vac into my tailpipe and spraying soapy water around the joints. I had leaks at the catback to y-pipe, both slip fit joints on the y pipe, and at the collector ball socket connections.
I was able to seal those up with copper RTV and they don't show leaks with the soapy water anymore.
It could still very well be leaking under actual load though. I was getting a smell in the truck before fixing the leaks but that has gone away now, so if it's leaking it's very minor.
kbuskill
***CAUTION*** I do my own stunts!
When you say you hooked up a shop vac to your tailpipe, I assume that you were blowing air in to pressurize the exhaust and not sucking air out to create a vacuum?
Did you spray the soapy water around where the headers meet the heads?
If you did, perhaps spinning the engine over just a little and trying it again just in case the valves (overlap) were open on a cylinder and not allowing pressure to buildup because it was flowing through the head and out the intake. Just thinking out loud.
Did you spray the soapy water around where the headers meet the heads?
If you did, perhaps spinning the engine over just a little and trying it again just in case the valves (overlap) were open on a cylinder and not allowing pressure to buildup because it was flowing through the head and out the intake. Just thinking out loud.
Yes, shop vac on "blow".
I clearly saw the bubbles out of all the joints I mentioned. I only checked the headers->heads connection from the engine bay with the soapy water. I am going to get under there tomorrow and spray from the bottom.
Good idea on turning the engine over and trying.
I remember on my G8, my ARH headers had a pinhole in the weld in a primary. It made a similar noise as this. How I found it was one header primary had a much different temperature than the others. I'll grab my infrared thermometer and check each primary.
kbuskill
***CAUTION*** I do my own stunts!
Spaceballs is great... gotta love Mel Brooks movies... Blazing Saddles is still one of my favorites... lol
Keep us posted on what you find... I am intrigued.
Going to try one more different sealant as recommended here
https://www.svtperformance.com/threads/the-dreaded-kooks-l-t-colletor-leak.1025346/#post-14343931
https://www.svtperformance.com/threads/the-dreaded-kooks-l-t-colletor-leak.1025346/#post-14343931
Could you use a band clamp? They're about 3 inches wide. Will reform to fit over a joint. Use them on flex pipe to pipe joints all the time. That's how much they clamp down. Seal pretty good.
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