I am posting this in P&B because I know some of you were expecting to see vids of the performance of my ported LIM. I was hoping to be sitting here showing you WOT greatness....instead I have vids of WOT doom. I took her out for the hundred mile PCM learn and then decided to hit some back rods to test her out. I did WOT while it was still learning and believe me.....she moves(moved) and she moved fast. On the first post 100 mile test run I thought I heard something like a belt squeal in the 5500 RPM range so I thought i would try it again. This time near the top of the rpm range I thought I heard something like the valve train tapping .so I decided I better head for home. I was about 50 miles out from home at that point. Warning....grab your jockstraps....feels liked getting kicked when you here these.....

vid 1 hoping I make it home

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vid 2 of more ride home



vid 3 safe (or not) home in the garage......cover your privates.felt liked getting kicked in the balls when I heard this..



So HELP!! what do you all think. I took the belt off and played with some of the pulleys. Did that real quick and didn't notice anything as I wanted to get this posted ASAP.

Wow, that would surely make me have to change my pants...in a bad way. I can't say exactly what that is since I have no experience with those kinds of sounds, but it doesn't sound like any pulley, and it'* not a bad HB that'* for sure (you already knew that). It'* past tapping. Sounds like some really bad knock. I'm sure you'll get a definite answer soon enough.

i would not be running it anymore

does it sound like top and or bottom end? what did you all do exactly when you had it apart?

Oh my. That sounds like a distinct bottom end knock. :(

Drain the oil yet?

What I did: New LIM alum. gaskets, UPN UIM kit, cleaned out throttle body and MAF. Ported the LIM. Didn't drain oil but I checked dipstick though. Clean as can be. It sounds like it'* top end.like something is bouncing around the UIM. I know I shouldn't but will start it one last time and take some more vid.

You lost your Bottom end. Im sorry.
That is a VERY distinctive knock. How is your oil pressure?
Drain the oil into a clean pan, and shine a bright light directly at it, do millions of little metalic particals light back up at you?

oil presuure constant over 40

Wow. You have some or one highly damaged rod bearing at the least, or atleast it sounds like, as that knocking is keeping up with engine rpms. A Tap tap tap tap, tapping at half of engine speed would be valve train IE lifter/spring.

Did you change your oil after working on the top end? Any ammount of coolant in the oil will destroy bearing surfaces in a hurry, sometimes even not running, just sitting contaminated.

This is so wierd. Yeah, I changed oil, changed out cooloant to pretone dex compatible(did the flush). Started her up again and runs except for all the frickin noise. Will post last vid next......

At this point I would hate to see the kind of damage inside that engine, even just removing the Oil pan could reveal alot.