MOBE

Definitely knocking. Its F'ing loud.

MOBE

Ok. Went home for lunch and pulled the intake off. I didn't see anything in the intake ports. Stuck a pen magnet into each one to see if it fished anything out. But, nothing. That was all I had time to do. I guess I'll pull the plugs when I get home and see what that turns up. The I guess its pull the heads time.

DaddySS

Pull the plugs and crank it over by hand. If there is something holding the valve open (and you haven't bent the valve or damaged the seat) you should be able to pin point it as you turn the engine over. If it's just something holding the valve open and you can compress the spring and get out you may OK.

Best of luck

MOBE

There is nothing holding the valve open. This may sound dumb, but the engine sounded like it was running fine, othere than the knock.

Tech

iTrader: (1)

Bump it over with the starter and have someone listen.

MOBE

Right now I've taken everything off but the heads.

jmX

Can you turn the motor over by hand using the crank bolt?

MOBE

Update:

Pulled the heads and found nothing.

SSean

Not to rule anything out, but I can't see how it could be anything on the bottom end. You say the car ran great up until the intake install, then it started knocking the second you fired it up. I can't imagine anything going bad that quickly. Now if it had run for a few seconds w/o oil that would be one thing, but you said it had good oil pressure, and again, the noise started immidietley

minivette

Do you think that maybe something was stressed when you ran over that rock that busted your oil pan a good while back? and that it is a coincidence that it just happened to go when you swapped intakes? I know it's a long stretch but...

MOBE

hmmm... I suppose that could be a possibility. Not sure where to go from here.

crainholio

iTrader: (2)

I didn't see where you ruled out rocker noise before the disassembly.

Put it back together, be super careful on your rocker torque one last time...22 lb/ft, rotate engine by hand 2 full rotations to bleed down the lifters, then 22 lb/ft again.

Re-test and report back. If it knocks, the engine comes out. If it doesn't, great.

Vvcdde

Good point and check your TQ wrench, not sure if you're using a wal-mart special brand TQ wrench, but get one that you know is acurate.

Go FasTA

I'm still betting that it wasn't sealed properly. When mine didn't seal well it was a LOUD ticking noise. Might easily be confused with a internal knock. Try putting it all back together and be sure to carefully check the torque sequence and settings for the intake.

supaTA

maybe its running too lean and/or the fuels not igniting right... hopefully you did'nt drop something in the engine while the intake was off

crainholio

iTrader: (2)

Dude...this thread was over 7 years ago. Thanks for sharing your valuable expertise, you really think he's still troubleshooting it now?

RsSean

iTrader: (27)

I did a intake job a while back on a 2000 Firehawk. All sockets and bolts were accoutned for. Started it up and it was knocking its ***, after the engine guy came over to look at it. There was a piece of plastic that fell into the runner during the removal process. He rev'd it up a few times and it exited the motor with no issues.

I hope that is what happened to you.

Snake_Skinner

iTrader: (12)

Don't worry newb it'l happen several more times too and then you'll finally realize to look at the date.

Kinda glad he brought it back, curious as to WTF happened to OP's engine. OP still here?

Dride76

iTrader: (5)

HOLY thread revival

LilJayV10

iTrader: (39)

It's funny how everyone bitches to use the search function and when they do people bitch about bringing old threads back. There's a mod on here that is real bad about that. Pick one or the other.

Who gives a damn how old the thread is. Like me when searching they probably don't look at the date of the thread.