So about 2 years ago my camaro started making a knocking noise. I wasn't sure what was wrong with it so i decided to park it. I'm finally getting around to it. I'm still not sure where the noise is coming from. Not sure if it's a rod bearing, push rod, or piston. Would anybody have an idea as to where I can start looking.

note: when idling you can hear the knock, when i rev it to 3500 rpm it seems to go away but as soon as i push on the gas it comes back.

 

What does it sound like exactly? A light knock, a heavy knock?

 

piston slap maby? describe the knock or make a vid.

 

it was light but it got louder another thing was when i moved the car (for the firts time in almost 2years ) it felt like it had lots of power still

 

What does the oil pressure look like? If you drive the car up on ramps and put a screw driver to your ear and the other end on the bottom of the oil pan, if it is a bottom end knock it will sound really loud.

 

put the car up on ramps already, used a mechanic stethoscope and it sounded about the same top and bottom but a little louder on botom.

 

Is it a quick knocking or is it slow? Also, does it have oil pressure?

 

Well if it sounded a little louder on the bottom end, then the chances are that the sound is coming from the bottom end of the motor, such as rod bearings, crank bearings, possible wrist pin, etc. Basically in order to fix what I think is your problem, the engine will need to be pulled and torn down. Lets face it, its pointless to replace only one out of 8 bearings if not all the bearings in the motor. You pull it apart, might as well do a basic check and over haul.

Good Luck.

Greg

 

I'll make a video and post it in 15 mins.

 

here's how it sounds.

http://s42.photobucket.com/albums/e3...t=MOV01886.flv

 

That sounds like a rod bearing to me.

 

Keep revving it like that and you'll know shortly.
Thats bad enough to just pull it and tear it down because it's not going to be an easy fix.

 

Ouch. Definitely doesn't sound good, and it sure doesn't sound like a lifter tapping LOL

If that were my engine, there's no doubt I'd pull the motor and rebuild/replace it. I wouldn't even start it up again.

 

yeah thats def a rod knock..... like the one guy said i wouldnt even start it anymore unless u want a rod threw your fender. sorry for ur luck man and hey if u wanna sell that motor and get a new one ill buy it..... as long as u dont start it up anymore

 

i guess its time to rebuild,could you guys point me in the right direction.im thinking of going stock heads with grand am cup kit and something mild on bottom end or do you guys have any ideas on a rebuild for under $3500

 

i would go and buy the TSP 383 kit and go from there, that would be a great start and u wouldnt have to worry about the bottom end. put a nice size with a good set of heads u will be good to go

but it will be a lot more than 3500 all said and done but it would be worth it

 

Thats what im thinking about doing but only going with the TSP 402.