Hey guys I'm about to start tearing into this but was hoping one of you might be able to tell which of those three options this is by the noise.

 

Lifter noise.............. put 1/2 qt atf in it before you tear down. It may silence it.

 

So I got the cover off on that side, but the sound seems to be coming from below the rockers. Just pull the rockers off and check the pushrods now? Or is that a pretty good sign that it's a spun bearing? I'll try to get another video in a minute

 

 

Hmmmmm. Maybe try a stethoscope (harbor freight real quick) to pin point the cylinder. Try unplugging cylinders one at a time to see if that changes the noise ( I doubt it will but just to be thorough, you should anyways).

Also try to guess whether it seems like a 360* Or 720* noise, in other words, valvetrain events occur every 720* en total, so you can sometimes notice that the noise only happens every other revolution, which help pinpoint it to the valvetrain related hardware or cylinder event.

 

check the pushrods on that side. You will find the ends on one of them is extremely worn.

 

so the sound seems to be coming from directly below the intake manifold which leads me to agree with you, but another thing is that the pushrods all seem to be off center. that's not normal right?

https://i.imgur.com/S0v5CMy.jpg

 

If you find the end worn off the pushrod.... you are going to know which lifter is causing your knock.
Pull the rockers off on that side. I can just about 100% assure you that you are going to find a pushrod worn out. That lifter has not been pumping oil up.

 

pull one rocker off at a time until the sound stops if the sound doesnt completely go away then its a rod or something else.. sounds like a stuck roller tip to me... but i could be wrong.. when removing the rockers make sure to remove the push rod too oh and injector plug and spark plug wire oh and spin the engine 360 once or twice, before starting it.. could be a cracked flex plate if auto.. i know i sure hate that sound.. hope ya figure it out man peace..

 

I'd dump some atf in it 1st. Mine sounded worse than that and its quiet as a mouse now. These lifters block with dirt very easily plus they are built sloppy as hell. Doesn't take much to make them collapse and make unhappy sounds.

 

Figured you guys would want an update.. collapsed lifter, right?

 

Bummer.
That is the same thing that happened to one of mine a while back. It took out my cam.
Just toss another wheelbarrow full of money at it. You will have all that fun again.

 

Did you make sure that rocker arm bolt didn't just back out? You may get lucky

 

Can't even afford the wheelbarrow atm
These things always happen when I'm broke I swear


First thing I checked haha no luck

 

Update:
Lifter doesn't want to lift out.. so I'm sure that's the issue. Anyone know any good tricks for this without removing the cam? I've been reading some by searching the forums

 

Spin the engine over by hand a time or two and that should cause it to come up high enough to grab with some vice grips or something of the like.. also if you can watch to when that lifter is up on the cam lobe that would be the best time to stop turning the engine so the lifter doesn't fall back down.. and i hate to say this... but if the lifter is stuck that bad then it is likely that the roller has came off or been eaten and has caused damaged your cam lobe But if you haven't ever taken a lifter out then maybe its just that, they are sometimes hard to get out is all.. but if the lifter roller tip is damaged once you have it out your going to have to replace your cam too ..

Edit: Also try removing another lifter to see if it comes out easier, you surely dont want to force that one out too hard as it could damage the bore if the roller tip is eaten and flared out.. would be best to just remove the cam anyways and go out that way as if the lifter is damaged as said before replacing the cam will be a must.. :End Eidt

Edit: Also wanted to note that if you do end up having to remove it through the cam bore, just make sure to use a magnet up in there so to where when it falls its supported by the magnet so it doesn't fall into the oil pan or even worse get stuck in the block somewhere on the crank, iv had a lifter get wedged in the bottom end somewhere between the crank and main caps, didnt think i was ever going to knock it loose... :End Eidt

Sure hope all turns out to be just a collapsed lifter.. peace man

 

Update, I took the valley cover off and took a look from the other side:




On the plus side, the lobe looks fine even though it looks bad in this pic. On the negative, I'm gonna have to pull the cam. And there's definitely shrapnel everywhere

 

wow that is crazy looking man ...

man i really dont know what to say.. im so sorry to see that ... hey at lest its up high enough to get the cam out.. whew..

 

In case you wanted another update:

 

First off YAY you got it out Oh btw if you dont mind whats the cam lobe look like and what cam is it, cause from the pic before, that lobe didn't look too bad, not as bad as you would think it should compared to that lifter.. but again the lifter was sitting on top it.. it still didn't look too bad... and if not, thats the brand camshaft i want to buy .. BIG TIME..