93SE, LIM Gasket change. - 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 09-25-2004, 11:30 PM   #1
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Default 93SE, LIM Gasket change.

Few things I've learned so far:

Fuel is pressurized, I guess I should have known that as the FSM made no mention of it... I have good Fuel Pressure.

The instructions in the FSM suck.

I was missing two parts of my front LIM<>Head gasket, making it suck unfiltered air and who knows what else.... Lovely thought.

The rear side of the LIM looks like it'* been charbroiled or something, Definatly need to get rid of some heat.

There is a 1/4" layer of nasty on the inside of the IM and Heads, Hopefully I can remove that....

Somehow there'* an oil streak in my TB, it'* coming from that air hole in there... I think it'* the fresh air inlet for the PCV. This may have been the small oil leak I've been tracing.

#5 & #6 injectors have like a burned look to them, That'* odd... The others are shiny...
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Old 09-27-2004, 12:07 AM   #2
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Wow, Reinstall of the LIM was easy as heck.

I spent from 12 til 5 cleaning parts, there was a whole lot of gunk I never saw.

I got the threadlock on the LIM bolts, and them finger tight before I realized my torque wrench is 1/2" drive and my extensions are 3/8".

I've got probably 5hp off the line going up to 10+ at redline. This baby hauls more a$$ than she ever has. If the TB gets me this much more I'll be very pleased. I burned out First time in months
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