I narrowed down my sucking noise.... - Page 2 - 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 07-06-2006, 02:12 PM   #11
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Alright, TB, LIM and SC are all cleaned up and ready to go. Gasket surfaces are nice and clean. I am still miffed that someone didn't put a TB gasket on and used gasket sealer. The TB was so dirty, it took me 45 minutes to get it nice and clean.

I forgot to say that a sure sign the LIM gaskets were shot is when I took off my oil cap, it wanted to stall, but managed to regained itself.
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Old 07-06-2006, 02:18 PM   #12
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Quote:
Originally Posted by Bonneville94V688
I forgot to say that a sure sign the LIM gaskets were shot is when I took off my oil cap, it wanted to stall, but managed to regained itself.
You sure that isn't a sign of needing a new PCV?
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Old 07-06-2006, 02:20 PM   #13
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Nope, has a new PCV. and the gasket on the PCV cap is in good shape.
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Old 07-12-2006, 03:06 PM   #14
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Update - Here are some pics of the progress.

What a mess...


Cleaned up and ready to be put back together
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Old 07-12-2006, 03:44 PM   #15
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Sounds like the "dealer" who did the original replacement had a crappy mechanic and no quality control.

Anyway, looks like you are doing it right this time. Are you using the newer aluminum framed LIM gaskets?
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Old 07-13-2006, 11:15 AM   #16
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Quote:
Originally Posted by lash
Sounds like the "dealer" who did the original replacement had a crappy mechanic and no quality control.

Anyway, looks like you are doing it right this time. Are you using the newer aluminum framed LIM gaskets?
hmmm....no? The dealer had the plastic ones, Autozone didn't have them (like always), Advance had the plastic ones, Napa had plastics but were out of stock, so I went to federated and picked up a set of the Fel-Pro ones. I bet the dealer did do a crappy job, I bet they rushed it.

Question that is very important is...... What is the tightening sequence and what should I tighten them down to? I need this for the LIM, SC, and the TB. I just recently made a deal here on the forum to buy service manuals, but I haven't sent the check out yet.
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Old 07-13-2006, 12:05 PM   #17
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Also, anyone got pics out of the Service manuals of the sequences?
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Old 07-13-2006, 01:00 PM   #18
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No aluminum framed gaskets for Series 1. Use Fel-Pro or OEM.

Torque sequence should be a zig-zag. Torque in stages. Half torque zigzag, then 3/4 torque value zigzag, then full torque zigzag.

Sanding down the LIM is not good practice. It could cause vacuum leaks at idle and Boost leaks at WOT.
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Old 07-13-2006, 01:03 PM   #19
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Quote:
Originally Posted by willwren
No aluminum framed gaskets for Series 1. Use Fel-Pro or OEM.

Torque sequence should be a zig-zag. Torque in stages. Half torque zigzag, then 3/4 torque value zigzag, then full torque zigzag.

Sanding down the LIM is not good practice. It could cause vacuum leaks at idle and Boost leaks at WOT.
Alright cool, no sanding here, I'm really careful at what I did. So zigzag and do torquing in sequences... what should I tighten them down to?

EDIT - Found it in techinfo.
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Old 07-13-2006, 01:20 PM   #20
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Crap.... my torque wrench doesn't read inch pounds. I'm guessing 89 in/lbs is 10 ft/lbs?
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