Ticking noise??
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Joined: Oct 2002
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From: tampa fl
Ticking noise??
started making a ticking noise from the driver side valve cover area. under a load... and now more and more. sounds like that valve tick you get when your low on oil. Sound familiar? L98.
Drifting
Joined: May 2002
Posts: 1,581
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From: The Motor City
Re: Ticking noise?? (Fast_vette89)
It's either a collapsed lifter or a rocker arm adjusting nut that's backing off - have you had the engine apart in the last little while?
My engine is ticking now and it gets louder as load/RPM increases. But I had the engine apart to change my head gaskets. I followed GMs suggested procedure to set my lifter preload, but for some reason I have to adjust my valve lash. Maybe it's the same in your case.
If you haven't had the engine apart in the last while, it's probably a collapsed or bad lifter. I'd suggest a quick engine flush to see if it solves the problem. Sometimes sludge gets into the lifter oil hole and it can keep it from 'plumping' up as oil pressure rises - an engine flush should clear that out if it is indeed the problem. If not, then you may have to replace one or more lifters.
[Modified by TheCorvetteKid, 7:48 PM 5/27/2003]
My engine is ticking now and it gets louder as load/RPM increases. But I had the engine apart to change my head gaskets. I followed GMs suggested procedure to set my lifter preload, but for some reason I have to adjust my valve lash. Maybe it's the same in your case.
If you haven't had the engine apart in the last while, it's probably a collapsed or bad lifter. I'd suggest a quick engine flush to see if it solves the problem. Sometimes sludge gets into the lifter oil hole and it can keep it from 'plumping' up as oil pressure rises - an engine flush should clear that out if it is indeed the problem. If not, then you may have to replace one or more lifters.
[Modified by TheCorvetteKid, 7:48 PM 5/27/2003]
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Re: Ticking noise?? (Fast_vette89)
Sounds like a weak lifter to me, hopefully its not a real problem yet. You can add some more oil and see if it goes away.
But if you do get time, take off the valve covers and look around.
But if you do get time, take off the valve covers and look around.
Burning Brakes
Joined: Aug 2000
Posts: 984
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From: Cincinnati OH
Re: Ticking noise?? (Fast_vette89)
If it only happens under load, it sounds like an exhaust leak. A lifter tick would not usually be dependent on load, only rpm/oil pressure. Check around your exhaust manifold: gasket, bolts, emissions connections, etc. Any leak there could easily sound like it's coming from the valve cover.
Burning Brakes
Joined: Jun 2001
Posts: 838
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From: Out by the bridge again, TampaBay
Re: Ticking noise?? (Vince Ivanc)
If it only happens under load, it sounds like an exhaust leak. A lifter tick would not usually be dependent on load, only rpm/oil pressure. Check around your exhaust manifold: gasket, bolts, emissions connections, etc. Any leak there could easily sound like it's coming from the valve cover.
A lifter will be most noticeable at startup. An exhaust leak sounds like what you're describing. A mechanics stethoscope will really help pinpoint those kinds of noises.
