Well, I got the new LIM gaskets on and turned my attention to the UIM. Turns out, the EGG stovepipe coming out of the bore in the LIM was definitely the issue in the failure. No matter how many times I tap the ATP replacement stovepipe into place in the LIM, I can wiggle and pull it out so obviously the last one vibrated out at some point and eventually melted the area around the stovepipe after 60K miles.

What would be best to use to try to coat the stovepipe bore with to get the stovepipe to stay in place? JB Weld?

Evidently, 5 years ago and tapped it in and it seemed locked in place to I continued on with installing the UIM. But, as stated the stovepipe had come loose and was sitting a couple inches back in the plenum with. Thanks for any suggestions. Don't want to do this again, lol.

EGR stovepipe I meant -- pardon the typo..

Take a pointed punch and stamp 4 notches around the manifold where the stovepipe goes into.

Apparently there is a sleeve in the hole where the stovepipe taps in. It almost looks like the sleeve got pushed down 1/8" or so and the stovepipe is pushing it down rather than going in it although I'm not if that'* how it'* supposed to function. Before I read this I tapped the stovepipe in some more with a rubber mallet and now cannot remove it by hand nor readily with channel locks gripping on it. I can kind of move the engine back and forth a little pulling on the stovepipe by hand. Still a little paranoid though.

With your method above, where would I make the notches? In the sleeve itself? I could leave it as it, but who know what it will do when it heats up.

Do you mean in the surface area of the intake manifold and basically punch 4 notches or divots into the base of the stovepipe to secure it -- trying to visualize?

Thank you for your heretofore time and patient responses!

Looking at pictures online, I think the issue was/is that the stovepipe isn't driving down far enough into the sleeve in the LIM as looks like the larger base area of the stovepipe is supposed to just about sit flush with the LIM once driven in. I tapped it with a rubber mallet fairly hard. I guess I could try slipping a socket over the pipe and onto the base when driving it and make sure the sleeve wasn't damaged when the OEM one came out. Almost seems like the pipe is not going into the sleeve insert or only partially -- or pushing the sleeve down slightly. Definitely not going all the way in readily at all. Will mess with it again tomorrow.

Yes, place 4 punch marks into the manifold just outside of the stovepipe. When you punch the aluminum, it pushes inwards towards the stovepipe making a tighter fit in 4 spots. This helps it stay in place.

The stovepipe went all the in when I used a socket for impact to the base instead of the top of the pipe. Pretty sure it'* in there forever now, but still probably pull the throttle body after a few thousand miles to make sure no issues. Just waiting on a couple of parts in the mail to finish it up and refill. Will drain the oil.

I'll update once I get it started and confirm it'* still a runner.

Thank you again. Glad I took this route now with all the Corona time to work on it as the silver lining.

Good deal. Yes, please keep us updated. A lot of members come here, ask for help, make the repairs and never come back saying XYZ fixed it.

I bet, if Luke Chapter 17 is any indication, that only about 1/10 come back and update! Nonetheless, very thankful for my "healing" here:1 And it came to pass, as he went to Jerusalem, that he passed through the midst of Samaria and Galilee.

12 And as he entered into a certain village, there met him ten men that were lepers, which stood afar off:

13 And they lifted up their voices, and said, Jesus, Master, have mercy on us.

14 And when he saw them, he said unto them, Go shew yourselves unto the priests. And it came to pass, that, as they went, they were cleansed.

15 And one of them, when he saw that he was healed, turned back, and with a loud voice glorified God,

16 And fell down on his face at his feet, giving him thanks: and he was a Samaritan.

17 And Jesus answering said, Were there not ten cleansed? but where are the nine?

18 There are not found that returned to give glory to God, save this stranger.

19 And he said unto him, Arise, go thy way: thy faith hath made thee whole.