Thread: Lower intake manifold question?

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  1. #1 Lower intake manifold question? 
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    Why would oil pool up inside the channel were the inside bolts are? It is like this on both sides. After I replace the upper and lower intake gaskets. Will this fix the issue or will I need to do something else?

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  2. #2 Re: Lower intake manifold question? 
    Killa Bee Scottydoggs's Avatar
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    bad pcv could do that, or it seeped up from the lim bolts

    make sure you use thread sealant on the lim bolts when they go back in.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  3. #3 Re: Lower intake manifold question? 
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    Ok I will make sure to add sealant to the bolts before putting them back in. Thanks!
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  4. #4 Re: Lower intake manifold question? 
    GXP Level Member Turbocharged400sbc's Avatar
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    its normal condensation/accumulation over time from the pcv system.
    pull it apart at 10k and youll see the puddle, it just wont be as full or dirty as a 75k+ lim
    ~James~ Psychotic Gearhead
    projects: 84 Cressida waGN~ 90 LN3 3800, equal length headers, T70, 89 700r4, misc parts,
    1994 Oldsmobile 442 (462ci-4wd-2 engines) L67/4t80e^2,
    00 Turbo Regal 608 fwhp 575ftlbs at 5500rpm, 98 WhippledRiv, 97 GTP
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  5. #5 Re: Lower intake manifold question? 
    GrandPrix Junkie HighOctaneRacing's Avatar
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    Quote Originally Posted by durell81 View Post
    Why would oil pool up inside the channel were the inside bolts are? It is like this on both sides. After I replace the upper and lower intake gaskets. Will this fix the issue or will I need to do something else?

    I remember these times lol. If you have access to a quality sandblaster, sandblast it and jet wash it or rinse it out to make sure you get all the glass out
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  6. #6 Re: Lower intake manifold question? 
    GXP Level Member Turbocharged400sbc's Avatar
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    Quote Originally Posted by HighOctaneRacing View Post
    I remember these times lol. If you have access to a quality sandblaster, sandblast it and jet wash it or rinse it out to make sure you get all the glass out
    never sandblast it, the carbon should be soaked in cheap old kerosene and scrubbed.

    too much chance for sand to get stuck inside a pcv passage and kerosene is like 4$ a gallon and a rubbermaid tote is like 10$ steal yer old lady's toothbrush, and an old water bottle with a few pinholes in the side for rinsing under pressure/stream.
    100 pack of razor blades and change em often as they get nicked
    ~James~ Psychotic Gearhead
    projects: 84 Cressida waGN~ 90 LN3 3800, equal length headers, T70, 89 700r4, misc parts,
    1994 Oldsmobile 442 (462ci-4wd-2 engines) L67/4t80e^2,
    00 Turbo Regal 608 fwhp 575ftlbs at 5500rpm, 98 WhippledRiv, 97 GTP
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  7. #7 Re: Lower intake manifold question? 
    GTX Level Member nos4blood70's Avatar
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    No point in scrubbing it and making it pristine if it's gonna happen again.
    -Carl
    "Penelope" - 145k Miles 2003 Bonneville SLE


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  8. #8 Re: Lower intake manifold question? 
    Turbo is the way to go. BillBoost37's Avatar
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    Agreed.. it's totally normal for oil to be there. And .. also agreed, cleaning it too much is a waste of time.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  9. #9 Re: Lower intake manifold question? 
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    Thanks everyone this forum has been extremely helpful. I can't wait to have this car back up and running.
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  10. #10 Re: Lower intake manifold question? 
    Turbo is the way to go. BillBoost37's Avatar
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    Soooo are you putting a new upper on it and switching out that big stovepipe? If not.. you should block the coolant ports to bulletproof it.

    Search on my name, "ea sy" without spaces and look for modding a lim.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  11. #11 Re: Lower intake manifold question? 
    GrandPrix Junkie HighOctaneRacing's Avatar
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    Quote Originally Posted by Turbocharged400sbc View Post
    never sandblast it, the carbon should be soaked in cheap old kerosene and scrubbed.

    too much chance for sand to get stuck inside a pcv passage and kerosene is like 4$ a gallon and a rubbermaid tote is like 10$ steal yer old lady's toothbrush, and an old water bottle with a few pinholes in the side for rinsing under pressure/stream.
    100 pack of razor blades and change em often as they get nicked
    This only happens if you don't know what your doing. I sand blast it then jet wash and use air to blow it out to verify no glass is left behind. The engine shop I do this at is owned by my buddy who's done engine rebuild's for 30+ years.
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