LIM Gaskets. - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 10-28-2005, 08:33 PM   #1
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Default LIM Gaskets.

Alright......Doing the LIM gaskets tomorow on the bonne so I can get back to a 20 mpg car vs my 12 mpg truck.

Anyone done this on a SI SSEi that knows what parts and or numbers that I'm gonna need to complete this task. Any pointers?
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Old 10-28-2005, 09:16 PM   #2
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I believe Will did this a year or two back .....there should be a write-up around here somewhere.
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Old 10-28-2005, 09:21 PM   #3
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If you're doing it tomorrow, you should have already ordered your parts. Off the top of my head:

TB gasket
SC gasket
2 coolant bypass (yellow) o-rings
Fuel injector o-ring kit
4-piece LIM set

Also suggest an EGR gasket so you can do maintenance on that at the same time.

You can get a kit from most major auto parts stores that includes most of these items. I strongly encourage you to stick with Fel-Pro or AC Delco gaskets. You MUST have a torque wrench to do this.
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Old 10-28-2005, 10:00 PM   #4
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I guess that there isn't any way to do this without separating the */C from the LIM?? Seeing how everything but the LIM was done under a year ago, even the EGR.
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Old 10-28-2005, 11:08 PM   #5
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Quote:
Originally Posted by LakevilleSSEi
I guess that there isn't any way to do this without separating the */C from the LIM?? Seeing how everything but the LIM was done under a year ago, even the EGR.
Actually, yes, you can remove the LIM and the SC as one unit -just remove the bolts for the LIM to the heads, as well as disconnecting all the other pertinent items (vacuum lines, sensors, fuel lines.....).
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Old 10-29-2005, 12:49 AM   #6
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And the coolant elbow under the alt.
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Old 10-29-2005, 05:11 AM   #7
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Right. Not an elbow, but a straight fitting (barb on one end, threads on the other). OEM is plastic, dealer should have a metal replacement in stock.
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Old 10-29-2005, 06:17 AM   #8
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Quote:
Originally Posted by willwren
Right. Not an elbow, but a straight fitting (barb on one end, threads on the other). OEM is plastic, dealer should have a metal replacement in stock.
Awesome......But I don't have a plastic elbow on that anymore, mine is rubber.

That makes things a lot easier then. Just a lil heavier. Oh and yes, I do have an accurate torque wrench.
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Old 10-29-2005, 03:55 PM   #9
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I think I already know the answer to this, but would it be safe to let my LIM saok in a pan of gasoline or parts cleaner for about an hour to clean everything off it while I swap the gaskets??
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Old 10-29-2005, 09:48 PM   #10
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Didn't I already say YES, that'* OK on the phone?

Idiot.


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