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cam and lifter problems found

This is a discussion on cam and lifter problems found within the Internal Engine forums, part of the LSx Technical Help Section category; It's on a 2001 ss camaro with 44,000 original miles. Number 5 cam lobe and lifter are mared and scuffed ...

  1. #1
    Junior Member smslyguy's Avatar
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    cam and lifter problems found

    It's on a 2001 ss camaro with 44,000 original miles. Number 5 cam lobe and lifter are mared and scuffed up and only on number 5. Do you think this could be a factory defect or oil troubles? I do use syntec full synthetic oil and change it at 3,000 mile intervals.


    I am just wounder when i replace the cam and lifter's if this will hapen again on the new ones???

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    cutting and welding mark21742's Avatar
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    I'd replace the oil pump with a high volume pump too, sounds like you lost some oil pressure.

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    Member xmarkx's Avatar
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    Quote Originally Posted by mark21742 View Post
    I'd replace the oil pump with a high volume pump too, sounds like you lost some oil pressure.
    that def. can't hurt.. great upgrade, but it sounds like there's a lack of oil just to that centralized area. sounds like something in 5 could be blocked

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    Junior Member smslyguy's Avatar
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    Quote Originally Posted by mark21742 View Post
    I'd replace the oil pump with a high volume pump too, sounds like you lost some oil pressure.
    oil pressure was and is at 60 psi. No problems there. It almost looks like a flaw in the casting, cause the cam lobe on number 5 does look pitted.

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    Moderator Firebirdjones's Avatar
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    Sounds like a roller bit the dust. How are the needle bearings in the lifter??

    Probably not going to roll very well now since trash has probably passed through it at the very least. I've lost a lifter before, and it will mar and pit the lobe as you describe.

    Best bet is to replace all 16 with the new cam. No telling where all that trash has gone.

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    cutting and welding mark21742's Avatar
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    To add to what Firebird said, check your rockers really good to make sure none of them spit their bearings and they got down in the cam/ lifter area

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    Junior Member smslyguy's Avatar
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    Quote Originally Posted by Firebirdjones View Post
    Sounds like a roller bit the dust. How are the needle bearings in the lifter??

    Probably not going to roll very well now since trash has probably passed through it at the very least. I've lost a lifter before, and it will mar and pit the lobe as you describe.

    Best bet is to replace all 16 with the new cam. No telling where all that trash has gone.
    Actually the lifter roller bearing is in good shape. Don't know how to add pics on here otherwise i would show you some pics. Maybe it was valve float?

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    Veteran 0rion's Avatar
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    Quote Originally Posted by smslyguy View Post
    Actually the lifter roller bearing is in good shape. Don't know how to add pics on here otherwise i would show you some pics. Maybe it was valve float?
    this is what I was kinda wondering....

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    Moderator Firebirdjones's Avatar
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    Quote Originally Posted by 0rion View Post
    this is what I was kinda wondering....
    Hey Orion, where have you been?

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    Moderator Firebirdjones's Avatar
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    Quote Originally Posted by smslyguy View Post
    Actually the lifter roller bearing is in good shape. Don't know how to add pics on here otherwise i would show you some pics. Maybe it was valve float?
    Have you gotten into valve float, even before the rev limiter took affect??

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    Veteran 0rion's Avatar
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    Quote Originally Posted by Firebirdjones View Post
    Hey Orion, where have you been?
    been around....kinda. Got your emails. Just haven't gotten around the responding yet. School started, Zach's playing baseball, Chloe is in gymnastics, blah blah blah. Just not enough hours in the day lately it seems.

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    Moderator Firebirdjones's Avatar
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    Quote Originally Posted by 0rion View Post
    been around....kinda. Got your emails. Just haven't gotten around the responding yet. School started, Zach's playing baseball, Chloe is in gymnastics, blah blah blah. Just not enough hours in the day lately it seems.
    I hear ya. Been a little busy here too. Rather be busy than bored.

  13. #13
    cutting and welding mark21742's Avatar
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    I hear ya there Orion, my 3 year old, well he is 3 lol and 10 year old is doing cheerleading, so after work I'm always busy

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