Caribe

iTrader: (1)

Started the car today and a heard slight knock that I had not heard before. When the car warmed up and had a load on it the knocking got pretty loud. I drove the car yesterday with no problems. Pulled the valve covers and checked springs and pushrods all were good. Oil pressure was good. Not sure how to check if it is a collapsed lifter or not. The knocking sounds like it is coming from the top of the engine. Any ideas? Here is a video:
http://media.putfile.com/LS1-knocking

downshift_me

spun bearing? pushed rod into the head?

Camaroholic

iTrader: (1)

Start by draining the oil. Capture it in a container that you can look in to (for example, use 2-3 empty milk jugs and cut the tops off of them so they look like scoops). If the oil has shiny bits in it, it's a bearing.

If you don't find anything there, it still may be a rod bearing. Time to dig deeper.

It does sound like the Fiero motor I had with a spun rod bearing tho. And it showed good oil pressure too (but it went lower at warm idle).

Reject

iTrader: (24)

damn sounds like a lawn mower!
yeah sounds like a bearing or loose cap

MAXIMO

iTrader: (14)

Damn sound nasty. I remember mine. All mine was f-ed up. Rod bearing and a collapsed lifter.

downshift_me

You could just pull your dipstick and look first....

Caribe

iTrader: (1)

I checked that right away, I will check the oil tommorow if I don't have to go to work. Thanks to everyone

Sprayed1998

iTrader: (10)

Damn that sounds horrible, sorry bro, and good luck.

chupr0kabra

iTrader: (10)

Man, I hope that's something simple, but I fear it's not. Good luck!


-Mike

Caribe

iTrader: (1)

Drained the oil today and inspected the oil little by little in a clear container. The oil plug was clean(no metal or shavings) and the oil was clean. I have not cut the filter yet.

Redcamaroman

What did the issue end up being?

ZONES89RS

iTrader: (25)

being as this was 2006, I’d be surprised if he was still in here active

Caribe

iTrader: (1)

Blast from the past. Just got these notifications. It ended up being a broken piston skirt. Replaced motor with a LME 408 that year. Still running strong.

Redcamaroman

Ok cool, mine is making a loud tapping, clanking sound from the driver's side cylinder one. It started right after a WOT pull to 7200rpm. It drove home and the oil pressure is perfect, no metal in the dipstick. Pulled valve covers on that side and the valve train looks and feels normal, I pulled the plugs and they are perfect, I pulled the plug wire to each cylinder and the noise didn't change. I'm thinking it's a lifter .

WS.6#384

iTrader: (6)

I like the story