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.

The Grizz is alive...lots of pics......

Old 03-19-2008, 07:39 PM
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I bet he won't find anything wrong with the oil. Nothing to back it up with, just a hunch after reading everything.
Old 03-19-2008, 08:13 PM
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Drop the pan and look in there. When mine went we didn't find next to nothing in the oil all the junk stayed in the bottom of the pan.
Old 03-19-2008, 08:51 PM
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The old oil was very dirty. Drained like gravy but it had no metal in it at all.

It seems to run better now but the rattle is there. No squeal. Just a rattle with increasing rpm. It sure sounds like it'* coming from the SC.

The guy I bought it from did not know about SC oil and he owned it for over 10 years. The original owner was an Insurance agent who never got his hands dirty.

You can rotate the SC pulley about 10 degrees before it catches the gears.....about 1/4" slop. Is that normal wear :?:
Old 03-19-2008, 08:54 PM
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Magnet didn't pick up anything and I held it under the oil as it was draining out.
Old 03-19-2008, 09:00 PM
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I'd say take it very easy while you wait for the coupler and oil to arrive.

You'll have to pull the SC to do this one, Paul. It'* not a Series 2.
Old 03-19-2008, 09:21 PM
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Hopefully it'* just the HB. it would really suck to see a kid'* first car go ka-splat a day after he bought it. I wish you guys luck, and hopefully it'* the HB.
Old 03-19-2008, 09:35 PM
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Well, the harmonic balancer seems rock solid when I had the belts off. The rubber appears intact.

Bill, are couplers the same for Series 1 M62 and Series 2 M90. I have a spare and lots of oil. Just don't have the SC gasket.

I know what you mean though. Once the slop is taken up and the SC is spinning under load, then it shouldn't rattle.

I think it'* the worst. :( A Rod bearing............just refuse to accept it



I may be using that new engine stand and puller sooner than I thought.

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