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-   -   Rocker/lifter noise only at certain RPM? (https://www.camaroz28.com/forums/lt1-based-engine-tech-9/rocker-lifter-noise-only-certain-rpm-606093/)

camarozz95 05-16-2008 10:12 PM

Rocker/lifter noise only at certain RPM?
 
Ok so I've had my rockers installed for about 2 weeks drives great. My question is valve train is quiet at idle maybe a little louder than stock but not clicking or anything car is quiet while driving no problems, But I have noticed that when driving very slow like in a parking lot or so rpms at like 1200 to 1500 range, or when driving and slowing down once the rpms get into that range it sounds like a loose rocker kind of but definitely not as loud. Is this normal for 1.6 SA rockers cause other wise they are quiet.

Also I pulled the valve cover and reved the engine and it sounds normal, but if you sitting in traffic in between cars if I rev to about 1200 and hold you can hear some clicking that sounds kinda like a loose rocker kinda weird cause it only does it then. Hope this is normal noise for the rockers.

Thanks In advance

Stl94LT1 05-16-2008 10:14 PM

Sounds normal, especially if it is fairly quiet at idle.

camarozz95 05-16-2008 10:59 PM

haha ok good I was pretty sure it was I just needed some reassurance.

mrmint69 05-17-2008 12:06 AM

If you tightened them correctly then your probably ok. I know stock rockers are different than aftermarket when adjusting them.

Injuneer 05-17-2008 10:52 AM

What is your oil pressure at idle/low rpm? If its too low, it may increase the lifter noise.

MarcR94v6 05-17-2008 11:32 AM

Mine are like how you describe stock, is this bad? I've replaced the lifters recently, maybe I need to adjust the valves.

camarozz95 05-17-2008 02:18 PM


Originally Posted by Injuneer (Post 5376422)
What is your oil pressure at idle/low rpm? If its too low, it may increase the lifter noise.

Oil Pressure is good at idle its always right on or right above the first white tick mark.


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