lifter or valve chatter - 88 L98 Auto
Thread Starter
Instructor
Joined: Oct 2002
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From: Fredericksburg Virginia
lifter or valve chatter - 88 L98 Auto
Hey all,
How noisy would you say the lifters are on a L98 with 21K miles on her. My top end sounds like I got solid lifter chatter on both sides...a lot of clicking. Is this normal for an L98?
How noisy would you say the lifters are on a L98 with 21K miles on her. My top end sounds like I got solid lifter chatter on both sides...a lot of clicking. Is this normal for an L98?
Le Mans Master
Joined: Jun 2002
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From: High Plains Drifter Fayetteville, AR
Re: lifter or valve chatter - 88 L98 Auto (Bill-35thAnvrsy-88)
Are you sure it's not the injectors? My injectors are LOUD :lol: :yesnod: When I first bought the car I was a little worried after I got used to the new noises, and actually started to hear the little ticks, and clacks. Got busy with the stethescope and it turned out to be my injectors. :cheers:
Thread Starter
Instructor
Joined: Oct 2002
Posts: 225
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From: Fredericksburg Virginia
Re: lifter or valve chatter - 88 L98 Auto (JCAIRE2)
No, I'm not sure it's not the injectors but I feel more sure it's the lifters. I mean, you can hear them chattering inside the valve cover pretty distinctly. However, a stethoscope is a darn good idea!
Le Mans Master
Joined: Jun 2002
Posts: 6,097
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From: High Plains Drifter Fayetteville, AR
Re: lifter or valve chatter - 88 L98 Auto (Bill-35thAnvrsy-88)
Let me try to elaborate on the loudness of the injectors. I can hear them while I'm IN the car windows up or down while idleing in the driveway. Hope this helps with your diagnosis. Sears has a decent automotive stethescope, can't remember exactly, but I believe I paid $20 for mine a couple years ago. :cheers:
Le Mans Master
Joined: Dec 2000
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From: San Diego, Ca
Re: lifter or valve chatter - 88 L98 Auto (Bill-35thAnvrsy-88)
Oil pressure normal? Oil level correct? Unusal for all the lifters or valves to be noisy on a low mileage engine that hasn't been touched from the factory (unless it wasn't screwed together quite right or there's a few more miles than what's showing on the clock). If it is under the covers, try changing the oil using a quality 5/30 dino.
Thread Starter
Instructor
Joined: Oct 2002
Posts: 225
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From: Fredericksburg Virginia
Re: lifter or valve chatter - 88 L98 Auto (JCAIRE2)
I put the steth on and I think you're right on the injectors. However, #8 cylinder sounded a little rough...like she was dry.
Am I wrong or is there a know problem on the #8 cylinder on the L98? I thought I remember reading 'bout this somewhere...something to do with heat??? Could of even been a different motor. Not sure. Any thoughts/comments on this out there?
Thanks!
Bill
Am I wrong or is there a know problem on the #8 cylinder on the L98? I thought I remember reading 'bout this somewhere...something to do with heat??? Could of even been a different motor. Not sure. Any thoughts/comments on this out there?
Thanks!
Bill
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Le Mans Master
Joined: Jun 2002
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From: High Plains Drifter Fayetteville, AR
Re: lifter or valve chatter - 88 L98 Auto (Bill-35thAnvrsy-88)
I'm not totally sure, but I believe there is indeed a good chance of running lean in cyliders 7&8. Glad you got it narrowed down though.:cheers: Could be a bad injector possibly. Hopefully, someone with more knowledge can help.
