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General Forums => The Mess Hall => Topic started by: jfrabat on March 11, 2008, 01:47:07 PM

Title: Valve Noise
Post by: jfrabat on March 11, 2008, 01:47:07 PM
My rig, from day one, has had a valve noise which I thought could possibly be the timing belt.  Using the broomstick technique, I kind of located the problem at the valves, but now I want to know how I go about fixing it.  Keep in mind that I only started doing mechanical work when I got the rig about a year and a half ago, and although I've done some things I always thought were outside my skills and experience, I have never touched the engine itself, so I have no idea what to look for, how to locate the particular valve with the problem, and how to fix it.

Anyone here feel like guiding me?  I do have the Chiltons, Haynes, and Jeep Service manuals, so if you point me in the right direction, I guess I could probably do it myself (can you tell my confidence level has improved with my hands-on experience?), but I dont know how to locate the problem, or if this is something a shade-tree mechanic can do at all...

Thanks!
Title: Re: Valve Noise
Post by: jcsanders79 on March 11, 2008, 02:31:00 PM
Shade tree mechanic and tool owner are totally different.  Odds are if you have no training you should at least have help from someone that does.  I would at least have someone confirm that the valves are even the problem.
Title: Re: Valve Noise
Post by: Jeffy on March 11, 2008, 03:28:06 PM
2.5L's as well as 4.0L's tend to have noisy valves to begin with.
Title: Re: Valve Noise
Post by: neale_rs on March 11, 2008, 04:28:52 PM
Mine is pretty noisy too. I've decided to just live with it.
Title: Re: Valve Noise
Post by: 95yjman on March 11, 2008, 06:45:08 PM
Mine are noisy sometimes, its not that bad.  When it gets bad enough, it will get a bigger engine.
Title: Re: Valve Noise
Post by: damon54 on March 11, 2008, 06:56:14 PM
lifter rattle?  Solid lifters don't self adjust to wear.
Title: Re: Valve Noise
Post by: Bounty Hunter on March 12, 2008, 01:41:33 AM
Try running 1/2 to 1 qt. of tranny fluid in the engine.

My mechanics 4.0L was doing this.  He found that when he went in and rotated the valve 90º that the noise would quit, for a while.
Title: Re: Valve Noise
Post by: jfrabat on March 12, 2008, 08:12:37 AM
I think I will try to record an MP3 of it, and let you guys hear it; might give you a better feel to check if somethings wrong or not...



Felipe