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.

Think I blew the head gasket

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Old Sep 26, 2006 | 09:30 AM
  #11  
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What should the pressures read if everything is ok.
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Old Sep 26, 2006 | 11:28 AM
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don't have a service manual on me.

If you are going in that deep, you should purchase one. Probably upward of 100psi
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Old Sep 26, 2006 | 12:31 PM
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EDITED for a big OOPS!!!
Sorry!!!!!

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Old Sep 26, 2006 | 12:39 PM
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WARNING!!!!

Please do NOT buy the gaskets listed in the post above this! They will NOT FIT your car. They are not available in Aluminum frame, nor are they necessary for a Series1. The OEM or Fel-Pro gasket will live a long life.

The intake port spacing is totally different on your car when compared to the gaskets just posted.
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Old Sep 26, 2006 | 12:47 PM
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And on a Series I, you can take the SC and LIM off as one. I've done it.
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Old Jan 14, 2007 | 09:39 PM
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This is an old post but heres an update. I replaced the LIM and still have the same problem. After that I replacing that and still have the same problem I parked the car. The next time I went to start the car up it ran like crap. It would barely stay running and I had to two foot it just to get it to move. I kind of sounded like it was back firing but I know that cant happen on a FI car. I didnt do the compresson check yet b/c I have 92 escort that im replacing the motor in right now. What are some other minor things that I can look at, I wish I had more time and better wheather to devote to both cars, but thats another story. Any help would be appreciated.
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Old Jan 14, 2007 | 09:44 PM
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I think you're gonna have to do the compression test.
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Old Jan 14, 2007 | 09:46 PM
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It might well have been the head gasket.
Looks like you will have to tear it down again and remove the heads.
Have the heads checked for cracks while they are off and maybe have the valves reground and check your guides for wear.
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Old Jan 14, 2007 | 09:48 PM
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I still have my doubts. Did you properly install the LIM gaskets? Did you overtorque them and crack them? Did you replace the o-rings between the SC and the LIM?
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