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74,000 miles 2001 z28, stick, 1 owner

This is a discussion on 74,000 miles 2001 z28, stick, 1 owner within the Internal Engine forums, part of the LSx Technical Help Section category; I thought oil gaskets on theeses LS1'S were state of the art?? Originally Posted by sjsingle1 oil drops are easy ...

  1. #41
    Member denegrader's Avatar
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    midnight blue metalic
    2001 camaro z28

    I thought oil gaskets on theeses LS1'S were state of the art??


    Quote Originally Posted by sjsingle1 View Post
    oil drops are easy to find........the source is always hard to find......the rear seal and cover can throw leaky oil out onto the starter.......or the pan can be leakin.......or a leaky front cover can make its way back to the starter.....or a combination of all the above......if you really want to find the source .....get it up in the air and steam clean the whole underside of the engine and undercarriage......start it up and wait for drops.....or drive it around SLOWLY so as not to let air throw oil back from the leak

    i do feel your pain my engine is leaking EVERYWHERE.....i will have to drop the engine and replace every gasket......seems the original gaskets just dont hold up.......to pay someone to do the gaskets is not cheap.....can you DIY?

  2. #42
    Member denegrader's Avatar
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    midnight blue metalic
    2001 camaro z28

    ok so is it that the crankshaft wil sling it but what the r.m.s. cover will contain it and is there a smal oil vent or will oil once in the r.m.s. cover slowly seep into the b.h. and then drip straight down and if it was there it would also be all over the tranny , mount going back ect right?




    Quote Originally Posted by Firebirdjones View Post
    Good close up picture. I can't really tell what part of the engine that is,,,but there is something leaking for sure. It's definately wet.

    Like I said, it's just odd for me to have leaks in anything whether classic cars or these new LS engines. I've just never had an issue until I bought the 02 SS, and it just leaked from day 1.

    With proper assembly techniques, proper crank case ventilation, I don't have issues with anything, even the old rear main rope seal in my pontiac. But that 02 LS1 gave me fits. Like I said though, My wifes 00 SS camaro is so dry it's dusty. I can't explain it.

    It's just going to be one of those deals where you'll have to clean everything thoroughly, put the car on a lift, start it up and sit there and watch things. Leaks can be a pain in the butt to diagnose. Start up high and work your way down.

  3. #43
    Member denegrader's Avatar
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    midnight blue metalic
    2001 camaro z28

    just passe d smog i see no oil burn , smoke??




    Quote Originally Posted by SMWS6TA View Post
    I'm willing to bet that you are burning oil through the intake. When's the last time you looked at your pcv or replaced it?


    Look at this thread. This is an example of how much oil gets into the intake.

    This is also after a LS6 VCT and catch can (CC) mod. The oil in the cup is how much my CC has caught in a 6 week period.
    http://ls1.com/forums/showthread.php?t=154965

  4. #44
    Member denegrader's Avatar
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    midnight blue metalic
    2001 camaro z28

    its engine oil drops but seems not much lately not even a drop today but maybe a few after 8 hours sitting!



    Quote Originally Posted by Y2KArcticSS View Post
    Can you visibly see a leak from the oil pan. If not, IMO you are more than likely...

    a.) getting fluid collecting at the bottom from a leak somewhere else, and maybe not even oil [power steering fluid in my case]

    b.) someone did a messy oil change, and the wind spread all the old oil about the oil pan.

    c.) gonna have to clean it and observe more closely, as well as oil levels.

  5. #45
    Member denegrader's Avatar
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    midnight blue metalic
    2001 camaro z28

    Did ya change it yerself?
    if so how ?
    i cant even see it?
    wats it screw into the oil passage in the block somewhere behind the intake right?




    Quote Originally Posted by wileyCoyote View Post
    one major leak source is the oil pressure sending unit (OPSU), which is at the back of the engine.. i just had a bunch of crap replaced on mine (valve cover gaskets, OPSU, rear main seal, intake gaskets, valley cover gaskets, PCV all new), ..i'll be damned if it's still dripping down from somewhere.

  6. #46
    Master Tech SSDEUCE's Avatar
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    navy blue metalic
    2001 camaro ss

    it's the pcv system it tends to suck up some oil it's normal, the 5/20 i was trying for fuel mileage with some lucas oil treatment didn't do much so i'm goin back to 5/30

  7. #47
    Member denegrader's Avatar
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    midnight blue metalic
    2001 camaro z28

    got a point hmmmm

    Quote Originally Posted by Wesman View Post
    Remember that you're dealing with a car thats over 10 years old...its not uncommon to have a small gasket leak.

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    Moderator Firebirdjones's Avatar
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    Quote Originally Posted by SMWS6TA View Post
    That is on the passenger side. I see the starter on the left of the pic. Looks like the top is towards the front of the car. Op am I correct?


    This is not a oil pan leak. You have leakage coming from higher up. Oil is coming from the top of the starter and it is also running down the block high up from the oil pan.

    From what I see in this pic makes me think that its not a rear main seal leak because it would be coming through the gap of the bell housing and not from the top or sides. There is no gaps in the bell housing except on the bottom. The gap is for the fluid to drain out if the rear main leaks to that there is no build up and can interfere with the clutch/stall and two, so that the driver can know the RMS is leaking/failing.
    That is exactly how my rear main leaked, slinging the oil all over the starter,,,hardly any at all ever made it down through the bell housing. It only leaked when it was running.

    Quote Originally Posted by sjsingle1 View Post
    oil drops are easy to find........the source is always hard to find......the rear seal and cover can throw leaky oil out onto the starter.......or the pan can be leakin.......
    Exactly. But I don't mean to say this is the only cause. It's just a perfect example of how mine acted.

  9. #49
    Senior Member wileyCoyote's Avatar
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    Quote Originally Posted by denegrader View Post
    Did ya change it yerself?
    if so how ?
    i cant even see it?
    wats it screw into the oil passage in the block somewhere behind the intake right?
    no i got it changed in the shop same time i had other gaskets (valve covers and intake, valley cover) changed. BTW, mine is still leaking from somewhere, and i even had the RMS replaced a couple months ago! i wonder if this is just a losing battle, ...maybe it's just going to leak some?

    the OPSU is directly behind the intake manifold, rear of the engine block on top. it's a major weakpoint on these engines (i.e. notorious for leaking for no reason)..

  10. #50
    Senior Member wileyCoyote's Avatar
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    Quote Originally Posted by denegrader View Post
    I thought oil gaskets on theeses LS1'S were state of the art??
    where did you hear that? lol. for being "state of the art" and all, mine leaks pretty good!

  11. #51
    The Bandit Wesman's Avatar
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    Quote Originally Posted by denegrader View Post
    So does everyone feel these LS-1's are naturaly oil burners and seepers between oil changes
    If the engine is in good condition and the PCV system is functioning properly, no.

    How much oil is everyone goin through between oil changes?
    Isn't 5-20 little light?
    5W-20 is way to low of a viscosity. The engine was designed for 5W-30, stick to that.

  12. #52
    Member denegrader's Avatar
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    midnight blue metalic
    2001 camaro z28


  13. #53
    Member denegrader's Avatar
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    midnight blue metalic
    2001 camaro z28


    ok everyone see this leak on r.s. of pan comming from a seepage so small outta each side some where, but orobably most leaks at back of pan , i believe and not r.m.s.
    thanx
    Last edited by denegrader; 04-27-2011 at 01:02 PM.

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