Thread: Going to Replace Uim and Lim gaskets...what exactly do i need?

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  1. #1 Re: Going to Replace Uim and Lim gaskets...what exactly do i need? 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    either get the felpro brand or the alluminum ones.

    Lim gasket
    Supercharger gasket (should come with 2 yellow o rings)
    valve cover gaskets and grommets
    tb gasket (unless yours is already the rubber re-useable one.
    RTV sealant
    coolant
    brake clean/razor
    10 quarts oil (buy cheap stuff,= for 5 of them, then the other 5 for whatever oil you want)
    oil filter


    After you have the LIM off and cleaned up, and befor you go to put it back on dump 1-2 quarts of oil down the valley to wash away any coolant/debris. Then drain the oil, and fill with 5 quarts oil and go drive it for 20-40 miles and then change it again. You must do this step to prevent any coolant from being in the oil and doing damage to the motor.


    If I missed something, I'm sure somebody will chime in.

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  2. #2 Re: Going to Replace Uim and Lim gaskets...what exactly do i need? 
    SE Level Member TomOfTarsus's Avatar
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    Thanks gents! Yeah, I don't get on here too often but having threads like this makes it worthwhile. I have a 2003 GTP and the intake manifold has been leaking for some time. I thought the recall was supposed to fix that!

    My son is more of a wrench head than I am, and he was thinking we wouldn't have to disturb the supercharger, but it looks like y'all think it would be prudent even if the gasket is ok? Or can you not get the intake manifold off without removing the supercharger first?

    Fivefingerdeathpunch (), thanks for the oil change notice. Makes sense when you think about it.

    Now, if anyone is willing to post Step 1 - 2 - 3 pics, I'd be all !!! As well, are there any torque numbers to worry about? My son thinks the intake manifold bolts are torque-to-yield....

    Seriously, thanks for this. FWIW, I'm at 112K, and other than front wheel bearings and the recall on the engine top end (maybe it was the head gaskets?), this is the first serious maintenance I've had - well, just did the air conditioner condenser and one of my strut mounts is popping on turns, so I guess I'm due...

    Thanks again,

    Tom
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  3. #3 Re: Going to Replace Uim and Lim gaskets...what exactly do i need? 
    GT Level Member Points70's Avatar
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    Get the metal gaskets, the plastic ones fail. And the plenum has torque specs and they should come with the plenum if you buy a new one. They tend to crack after the second torque down. Just so you know
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  4. #4 Re: Going to Replace Uim and Lim gaskets...what exactly do i need? 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    you can take the supercharger off with the LIM, but its just alot heavier and a little more a pain to get back on with how bulky it will be.

    ALL the supercharger and LIM bolts are re-useable, they are not TTY.

    I cant remember the torque specs, but just get them pretty snug all the way around and you wont have problems. I've seen LIM bolts snap at the proper torque specs for no reason, so that why snug is good enough.

    Watch this.

    http://api.viglink.com/api/click?for...13174000148283

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  5. #5 Re: Going to Replace Uim and Lim gaskets...what exactly do i need? 
    The Blue One blueguy's Avatar
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    Quote Originally Posted by Points70 View Post
    Get the metal gaskets, the plastic ones fail. And the plenum has torque specs and they should come with the plenum if you buy a new one. They tend to crack after the second torque down. Just so you know
    Ummm, sure...on L36 motors...this is the supercharged section.

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  6. #6 Re: Going to Replace Uim and Lim gaskets...what exactly do i need? 
    GT Level Member Points70's Avatar
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    Quote Originally Posted by bluegtp91 View Post
    Ummm, sure...on L36 motors...this is the supercharged section.

    Ya, I over looked that my bad
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  7. #7 Re: Going to Replace Uim and Lim gaskets...what exactly do i need? 
    Donating Users SarasotaGTP's Avatar
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    I am finishing up the LIM gaskets on my 97 and saw this post. I am sorry to ask maybe a dumb question but here goes- All the car has ever had in it has been mobil 1 synthetic and I am wondering if I should use that for even the "rinse" and short drive to wash out the motor or if I can use a less $ oil to do that since it will be in the motor for less than an hour or two. If I should stay with the mobil 1 I will but it seems silly if it's a throw a way. Any input is appreciated, thanks!

    Also do I need two oil filters or just change the filter at the end of the process?

    Quote Originally Posted by Fivefingerdeathpunch View Post
    either get the felpro brand or the alluminum ones.

    Lim gasket
    Supercharger gasket (should come with 2 yellow o rings)
    valve cover gaskets and grommets
    tb gasket (unless yours is already the rubber re-useable one.
    RTV sealant
    coolant
    brake clean/razor
    10 quarts oil (buy cheap stuff,= for 5 of them, then the other 5 for whatever oil you want)
    oil filter


    After you have the LIM off and cleaned up, and befor you go to put it back on dump 1-2 quarts of oil down the valley to wash away any coolant/debris. Then drain the oil, and fill with 5 quarts oil and go drive it for 20-40 miles and then change it again. You must do this step to prevent any coolant from being in the oil and doing damage to the motor.


    If I missed something, I'm sure somebody will chime in.
    Last edited by SarasotaGTP; 01-08-2012 at 10:37 AM. Reason: forgot a ?
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